{"pageNumber":"142","pageRowStart":"3525","pageSize":"25","recordCount":6233,"records":[{"id":32353,"text":"ofr01410 - 2001 - Location and description of transects for ecological studies in floodplain forests of the lower Suwannee River, Florida","interactions":[],"lastModifiedDate":"2012-02-02T00:09:11","indexId":"ofr01410","displayToPublicDate":"2002-05-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-410","title":"Location and description of transects for ecological studies in floodplain forests of the lower Suwannee River, Florida","docAbstract":"Twelve transects were established in floodplain forests along the lower Suwannee River, Florida, as the principal data collection sites for a comprehensive study conducted by the U.S. Geological Survey and the Suwannee River Water Management District from 1996 to 2001. Data collected along the 12 transects included hydrologic conditions, land-surface elevations, soils, and vegetation of floodplain forests in relation to river flow. Transect locations are marked in the field with permanent markers at approximately 30 meter intervals. \rDetailed descriptions of the 12 transects and their locations are provided so that they can be used for future ecological studies. Descriptions of the transects include contact information necessary for access to the property on which the transects are located, maps showing transect locations and routes from the nearest city or major road, small scale maps of each transect showing marker locations, latitude and longitude of each marker, compass bearings of each transect line and graphs showing land-surface elevations of the transect with marker locations. ","language":"ENGLISH","doi":"10.3133/ofr01410","usgsCitation":"Lewis, L., Light, H., and Darst, M.R., 2001, Location and description of transects for ecological studies in floodplain forests of the lower Suwannee River, Florida: U.S. Geological Survey Open-File Report 2001-410, vi, 84 p. : col. ill., col. maps ; 28 cm. , https://doi.org/10.3133/ofr01410.","productDescription":"vi, 84 p. : col. ill., col. maps ; 28 cm. ","costCenters":[],"links":[{"id":160984,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":3337,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/ofr01-410 ","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a68e4b07f02db63ba0e","contributors":{"authors":[{"text":"Lewis, L.J.","contributorId":77972,"corporation":false,"usgs":true,"family":"Lewis","given":"L.J.","email":"","affiliations":[],"preferred":false,"id":208385,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Light, H.M.","contributorId":43389,"corporation":false,"usgs":true,"family":"Light","given":"H.M.","email":"","affiliations":[],"preferred":false,"id":208383,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Darst, M. R.","contributorId":75187,"corporation":false,"usgs":true,"family":"Darst","given":"M.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":208384,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":33039,"text":"wri014269 - 2001 - Numerical simulation of streamflow distribution, sediment transport, and sediment deposition along Long Beach Creek in Northeast Missouri","interactions":[],"lastModifiedDate":"2022-05-18T21:50:31.868589","indexId":"wri014269","displayToPublicDate":"2002-05-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2001-4269","displayTitle":"Numerical Simulation of Streamflow Distribution, Sediment Transport, and Sediment Deposition along Long Branch Creek in Northeast Missouri","title":"Numerical simulation of streamflow distribution, sediment transport, and sediment deposition along Long Beach Creek in Northeast Missouri","docAbstract":"<p>This report presents the results of a study conducted by the U.S. Geological Survey in cooperation with the Missouri Department of Conservation to describe the hydrology, sediment transport, and sediment deposition along a selected reach of Long Branch Creek in Macon County, Missouri. The study was designed to investigate spatial and temporal characteristics of sediment deposition in a remnant forested riparian area and compare these factors by magnitude of discharge events both within and outside the measured range of flood magnitudes. </p><p>The two-dimensional finite-element numerical models RMA2-WES and SED2D-WES were used in conjunction with measured data to simulate streamflow and sediment transport/deposition characteristics during 2-, 5-, 10-, and 25-year recurrence interval floods. Spatial analysis of simulated sediment deposition results indicated that mean deposition in oxbows and secondary channels exceeded that of the remaining floodplain areas during the 2-, 5-, 10-, and 25-year recurrence interval floods. The simulated mass deposition per area for oxbows and secondary channels was 1.1 to 1.4 centimeters per square meter compared with 0.1 to 0.60 centimeters per square meter for the remaining floodplain. </p><p>The temporal variability of total incremental floodplain deposition during a flood was found to be strongly tied to sediment inflow concentrations. Most floodplain deposition, therefore, occurred at the beginning of the streamflow events and corresponded to peaks in sediment discharge. Simulated total sediment deposition in oxbows and secondary channels increased in the 2-year through 10-year floods and decreased in the 25- year flood while remaining floodplain deposition was highest for the 25-year flood. </p><p>Despite increases in sediment inflows from the 2-year through 25-year floods, the retention ratio of sediments (the ratio of floodplain deposition to inflow load) was greatest for the 5-year flood and least for the 25-year flood. The decrease in retention ratio at greater flows is likely the result of higher velocities on the floodplain, resulting in higher bed shear stress, greater suspension time of deposited material, and greater sediment transport through the system. </p><p>Simulated sediment deposition was most sensitive to sediment inflow concentrations and modification of floodplain roughness—factors that can be controlled through management practices. The increase in floodplain sediment deposition resulting from a simulated increase in vegetation density (increase in floodplain roughness from a Manning's n of 0.11 to 0.12) was 142,000 kilograms, or 6.5 percent for a 10-year recurrence interval flood. This increase was comparable to total oxbow and secondary channel deposition mass in the simulations, but would result in a mean increase in floodplain deposition thickness of only 0.025 centimeter. </p><p>The hydrodynamic model results show the importance of the secondary channels and meander cutoff channels in this system because these areas quickly bring floodwaters and sediment to areas not close to the main channel. The meander cutoff channels in the simulation also effectively decrease flow and velocities in some main channel sections thereby affecting sediment deposition in the vicinity of these features.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wri014269","collaboration":"Prepared in cooperation with the Missouri Department of Conservation","usgsCitation":"Heimann, D.C., 2001, Numerical simulation of streamflow distribution, sediment transport, and sediment deposition along Long Beach Creek in Northeast Missouri: U.S. Geological Survey Water-Resources Investigations Report 2001-4269, Report: vi, 61 p.; Films, https://doi.org/10.3133/wri014269.","productDescription":"Report: vi, 61 p.; Films","costCenters":[{"id":396,"text":"Missouri Water Science Center","active":true,"usgs":true}],"links":[{"id":400788,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_51426.htm"},{"id":360438,"rank":3,"type":{"id":2,"text":"Additional Report Piece"},"url":"https://pubs.usgs.gov/wri/2001/4269/Films","text":"Films","description":"WRIR 2001–4269 Films"},{"id":360437,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/2001/4269/wrir20014269.pdf","text":"Report","linkFileType":{"id":1,"text":"pdf"},"description":"WRIR 2001–4269"},{"id":164388,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/2001/4269/coverthb.jpg"}],"country":"United States","state":"Missouri","otherGeospatial":"Long Branch Creek","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -92.4944,\n              39.8833\n            ],\n            [\n              -92.4833,\n              39.8833\n            ],\n            [\n              -92.4833,\n              39.8722\n            ],\n            [\n              -92.4944,\n              39.8722\n            ],\n            [\n              -92.4944,\n              39.8833\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","contact":"<p>Director, <a href=\"https://www.usgs.gov/centers/cm-water\" data-mce-href=\"https://www.usgs.gov/centers/cm-water\">Central Midwest Water Science Center</a><br>U.S. Geological Survey<br>1400 Independence Road<br>Rolla, MO 65401</p>","tableOfContents":"<ul><li>Abstract</li><li>Introduction</li><li>Study Approach</li><li>Simulation of Streamflow Distribution</li><li>Simulation of Sediment Transport and Deposition</li><li>Summary</li><li>References Cited</li></ul>","publishingServiceCenter":{"id":4,"text":"Rolla PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db69994e","contributors":{"authors":[{"text":"Heimann, David C. 0000-0003-0450-2545 dheimann@usgs.gov","orcid":"https://orcid.org/0000-0003-0450-2545","contributorId":3822,"corporation":false,"usgs":true,"family":"Heimann","given":"David","email":"dheimann@usgs.gov","middleInitial":"C.","affiliations":[{"id":36532,"text":"Central Midwest Water Science Center","active":true,"usgs":true},{"id":396,"text":"Missouri Water Science Center","active":true,"usgs":true}],"preferred":true,"id":209752,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":32356,"text":"ofr01439 - 2001 - User's guide to SSARRMENU","interactions":[],"lastModifiedDate":"2012-02-02T00:09:11","indexId":"ofr01439","displayToPublicDate":"2002-05-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-439","title":"User's guide to SSARRMENU","docAbstract":"The U.S. Geological Survey, in cooperation with Pierce County Department of Public Works, Washington, has developed an operational tool called the Puyallup Flood-Alert System to alert users of impending floods in the Puyallup River Basin. The system acquires and incorporates meteorological and hydrological data into the Streamflow Synthesis and Reservoir Regulation (SSARR) hydrologic flow-routing model to simulate floods in the Puyallup River Basin. SSARRMENU is the user-interactive graphical interface between the user, the input and output data, and the SSARR model. In a companion cooperative project with Pierce County, the SSARR model for the Puyallup River Basin was calibrated and validated. The calibrated model is accessed through SSARRMENU, which has been specifically programed for the Puyallup River and the needs of Pierce County. SSARRMENU automates the retrieval of data from ADAPS (Automated DAta Processing System, the U.S. Geological Survey?s real-time hydrologic database), formats the data for use with SSARR, initiates SSARR model runs, displays alerts for impending floods, and provides utilities to display the simulated and observed data. An on-screen map of the basin and a series of menu items provide the user wi","language":"ENGLISH","doi":"10.3133/ofr01439","usgsCitation":"Mastin, M.C., and Le, T., 2001, User's guide to SSARRMENU: U.S. Geological Survey Open-File Report 2001-439, 35 p., https://doi.org/10.3133/ofr01439.","productDescription":"35 p.","costCenters":[],"links":[{"id":161286,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":3339,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/ofr01439/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a16e4b07f02db603e30","contributors":{"authors":[{"text":"Mastin, M. C.","contributorId":90782,"corporation":false,"usgs":true,"family":"Mastin","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":208399,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Le, Thanh","contributorId":21598,"corporation":false,"usgs":true,"family":"Le","given":"Thanh","email":"","affiliations":[],"preferred":false,"id":208398,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":31012,"text":"wri014270 - 2001 - Stratigraphy and vertical hydraulic conductivity of the St. Francois confining unit in townships 25-27 N. and ranges 01-02 W., southeastern Missouri","interactions":[],"lastModifiedDate":"2014-04-09T15:28:05","indexId":"wri014270","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2001-4270","title":"Stratigraphy and vertical hydraulic conductivity of the St. Francois confining unit in townships 25-27 N. and ranges 01-02 W., southeastern Missouri","docAbstract":"The St. Francois confining unit (DerbyDoerun\nDolomite and Davis Formation) lies\nbeneath the Ozark aquifer (Jefferson City Dolomite\nto the Potosi Dolomite) and impedes the circulation\nof water between the overlying Ozark\naquifer and the underlying St. Francois aquifer\n(Bonneterre Formation and Lamotte Sandstone).\nThe Bonneterre Formation is the potential host\nformation for lead-zinc deposits in the area. There\nis concern that mine dewatering in the Bonneterre\nFormation could lower water levels in the Ozark\naquifer. To address this concern, the vertical\nhydraulic conductivity of the St. Francois confining\nunit in six townships (T. 25-27 N. and R. 01-\n02 W.) of Oregon, Carter, and Ripley Counties of\nsoutheastern Missouri was evaluated by describing\nthe stratigraphy and measuring the vertical\nhydraulic conductivity of core samples.\nThe Davis Formation is an intrashelf basin\nfacies consisting of a series of shales interbedded\nwith shaley limestones, shale-free limestones, and\nlocal dolostones, and ranges from 24 to 320ft\n(feet) thick, but typically the thickness is 100 to\n200 ft. Shale-dominant sequences can be tens of\nfeet thick, and contain as much as 90 percent shale.\nCarbonate-dominant zones may be 70 ft thick or\ngreater. The top of the Davis Formation (based on\n56 data points) ranges from 620 to 2,022 ft deep\nand ranges in altitude from 40ft below sea level in\nthe northern part of the study area to 1, 182 ft below\nsea level in the southern part of the study area.\nThe Derby-Doerun Dolomite represents a\npair of superimposed carbonate ramp cycles.\nWhere present, the basal shaley sequence represents\na transition with the Davis Formation. The\nformation (based on 50 data points) ranges from\n50 to 386ft thick, but typically is 120 to 180ft\nthick in the study area. The top of the DerbyDoerun\nDolomite ranges from 495 to 2,020 ft deep\n(based on 53 data points), and ranges in altitude\nfrom 85 ft above sea level to 94 7 ft below sea level.\nThe St. Francois confining unit is thickest in\nthe central and southern parts of the study area.\nThe thickness, as determined by 51 core logs that\ncompletely penetrate the unit, ranges from less\nthan 200ft in the northwestern and east-central\nparts of the study area to 411 ft in the central part,\nbut typically ranges from 270 to 340 ft. The net\nshale thickness of the confining unit (based on 29\ndata points) ranges from 1. 7 ft in the east -central\npart of the study area to 89 ft in the southwest part.\nThese net shale thickness values include the cumulative\nshale thickness of rock from the top of the\nDerby-Doerun Dolomite to the base of the False\nDavis.\nVertical hydraulic conductivities of 35 rock\ncore samples from the St. Francois confining unit\nin the study area range from 7.6 x 10<sup>-15</sup> to 2.1 x\n10<sup>-10</sup> ft/s (foot per second). The logarithmic transformed\nvertical hydraulic conductivities of the\nDerby-Doerun Dolomite and Davis Formation are\nsimilar (p-value = 0.073) using the statistical twosample\nt-test; however, this p-value approaches\nthe level of significance value of 0.05. The vertical\nhydraulic conductivity of the Derby-Doerun\nDolomite is larger and less variable than the Davis\nFormation. When grouped by rock type, the vertical\nhydraulic conductivity of samples that contain\ncarbonate, shale, or both carbonate and shale, are\nsimilar.\nA comparison on the ranked data using the\nMann-Whitney test shows the confining unit in the\nstudy area is statistically different (p-value =\n0.020) from the confining unit in the prospecting\narea (west and adjacent to the study area). The\nmedian value of the vertical hydraulic conductivity\ndata from the study area (6.7 x 10<sup>-13</sup> ft/s) is three\ntimes larger than the median vertical hydraulic\nconductivity value for the prospecting area (2.2 x\n10<sup>-13</sup> ft/s ). The interquartile range shows that the\nvariability of the study area data spans one order of\nmagnitude (2.0 x 10<sup>-13</sup> to 2.2 x 10<sup>-12</sup> ft/s) and that\nthe corresponding data from the prospecting area\nspans nearly two orders of magnitude (3.2 x 10<sup>-14</sup>\nto 1.1 x 10<sup>-12</sup> ft/s).\nThe ranked vertical hydraulic conductivities\nof the Derby-Doerun Dolomite in the two areas are\nstatistically similar (p-value = 0.514). The median\nvertical hydraulic conductivity of the study area\ndata ( 1.2 X 10<sup>-12</sup> ft/s) is about three times greater\nthan the median value of the prospecting area data\n(4.4 x 10<sup>-13</sup> ft/s). The variability of the data, as\nshown by the interquartile range, is less in the\nstudy area (5.5 x 10<sup>-13</sup> to 2.2 x 10<sup>-12</sup> ft/s; spanning\nless than one order of magnitude) as compared to\nthe prospecting area (3.2 x 10<sup>-14</sup> to 6.3 x 10<sup>-10</sup>\nft/s; spanning over four orders of magnitude).\nThe ranked vertical hydraulic conductivities\nof the Davis Formation in the two areas show these\ndata sets are statistically similar (p-value = 0.076).\nThe median vertical hydraulic conductivity value\nof study area samples ( 4.5 x 10<sup>-13<sup> ft/s) is three\ntimes greater than the median value of the prospecting\narea data (1.6 x 10<sup>-13</sup> ft/s). The interquartile\nrange of the study area data spans one order of\nmagnitude (1.2 x 10<sup>-13</sup> to 1.4 x 10<sup>-12</sup> ft/s) and the corresponding data from the prospecting area\nspans nearly 1.5 orders of magnitude (3.2 x 10<sup>-14</sup>\nto 7.4 x 10<sup>-13</sup> ft/s).\nThe Mann-Whitney test shows the ranked\nvertical hydraulic conductivities of each rock type\nfrom the study area are statistically similar to the\nsame rock type in the prospecting area [carbonates\n(p-value = 0.225), shales (p-value = 0.668), and\ncarbonates and shales (p-value = 0.227)]. However,\nin each of the three cases the study area samples\nhave larger median values and less variability\nthan the prospecting area samples.\nBecause the vertical hydraulic conductivity\nof the various rock types of the confining unit in\nthe study area are statistically similar, the entire\ncarbonate-shale thickness is the primary factor\ndetermining the effectiveness of the confining unit.\nThe range of effective vertical hydraulic conductivity\nof the St. Francois confining unit in the study\narea using appropriate minimum and maximum\nthickness, net shale thickness, and vertical hydraulic\nconductivities is 3 X 10<sup>-13</sup> to 2 X 10<sup>-12</sup> ft/s. The\nvertical hydraulic conductivity of the confining\nunit is small, and the confining unit effectively\nimpedes the ground-water flow between the Ozark\naquifer and the St. Francois aquifer, unless preferred-\npath secondary permeability has developed\nalong faults and fractures that extend through the\nconfining unit.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Rolla, MO","doi":"10.3133/wri014270","collaboration":"Prepared in cooperation with the U.S. Department of Agriculture, Forest Service, U.S. Department of the Interior, Bureau of Land Management, and Missouri Department of Conservation","usgsCitation":"Kleeschulte, M., and Seeger, C., 2001, Stratigraphy and vertical hydraulic conductivity of the St. Francois confining unit in townships 25-27 N. and ranges 01-02 W., southeastern Missouri: U.S. Geological Survey Water-Resources Investigations Report 2001-4270, 63 p., https://doi.org/10.3133/wri014270.","productDescription":"63 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":160861,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri014270.jpg"},{"id":286074,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/2001/4270/report.pdf"}],"scale":"100000","projection":"Universal Transverse Mercator, Zone 15","country":"United States","state":"Missouri","otherGeospatial":"Mark Twain National Forest","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -91.621674,36.420187 ], [ -91.621674,37.19669 ], [ -90.689163,37.19669 ], [ -90.689163,36.420187 ], [ -91.621674,36.420187 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b19e4b07f02db6a7c5f","contributors":{"authors":[{"text":"Kleeschulte, M. J.","contributorId":73222,"corporation":false,"usgs":true,"family":"Kleeschulte","given":"M. J.","affiliations":[],"preferred":false,"id":204585,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Seeger, C.M.","contributorId":55484,"corporation":false,"usgs":true,"family":"Seeger","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":204584,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":31004,"text":"wri014158 - 2001 - Approach for delineation of contributing areas and zones of transport to selected public-supply wells using a regional ground-water flow model, Palm Beach County, Florida","interactions":[],"lastModifiedDate":"2012-02-02T00:09:01","indexId":"wri014158","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2001-4158","title":"Approach for delineation of contributing areas and zones of transport to selected public-supply wells using a regional ground-water flow model, Palm Beach County, Florida","docAbstract":"Rapid urban development and population growth in Palm Beach County, Florida, have been accompanied with the need for additional freshwater withdrawals from the surficial aquifer system. To maintain water quality, County officials protect capture areas and determine zones of transport of municipal supply wells. A multistep process was used to help automate the delineation of wellhead protection areas. \r\n\r\nA modular ground-water flow model (MODFLOW) Telescopic Mesh Refinement program (MODTMR) was used to construct an embedded flow model and combined with particle tracking to delineate zones of transport to supply wells; model output was coupled with a geographic information system. An embedded flow MODFLOW model was constructed using input and output file data from a preexisting three-dimensional, calibrated model of the surficial aquifer system. Three graphical user interfaces for use with the geographic information software, ArcView, were developed to enhance the telescopic mesh refinement process. These interfaces include AvMODTMR for use with MODTMR; AvHDRD to build MODFLOW river and drain input files from dynamically segmented linear (canals) data sets; and AvWELL Refiner, an interface designed to examine and convert well coverage spatial data layers to a MODFLOW Well package input file. MODPATH (the U.S. Geological Survey particle-tracking postprocessing program) and MODTOOLS (the set of U.S. Geological Survey computer programs to translate MODFLOW and MODPATH output to a geographic information system) were used to map zones of transport. \r\n\r\nA steady-state, five-layer model of the Boca Raton area was created using the telescopic mesh refinement process and calibrated to average conditions during January 1989 to June 1990. A sensitivity analysis of various model parameters indicates that the model is most sensitive to changes in recharge rates, hydraulic conductivity for layer 1, and leakance for layers 3 and 4 (Biscayne aquifer). \r\n\r\nRecharge (58 percent); river (canal) leakance (29 percent); and inflow through the northern, western, and southern prescribed flux model boundaries (10 percent) represent the major inflow components. Principal outflow components in the Boca Raton well field area include well discharge (56 percent), river (canal) leakance (27 percent), and water that discharges along the coast (10 percent). \r\n\r\nA particle-tracking analysis using MODPATH was conducted to better understand well-field ground-water flow patterns and time of travel. MODTOOLS was used to construct zones-of-transport spatial data for municipal supply wells. Porosity estimates were uniformly increased to study the effect of porosity on zones of transport. Where porosity was increased, the size of the zones of transport were shown to decrease.","language":"ENGLISH","doi":"10.3133/wri014158","usgsCitation":"Renken, R., Patterson, R., Orzol, L., and Dixon, J., 2001, Approach for delineation of contributing areas and zones of transport to selected public-supply wells using a regional ground-water flow model, Palm Beach County, Florida: U.S. Geological Survey Water-Resources Investigations Report 2001-4158, 56 p. , https://doi.org/10.3133/wri014158.","productDescription":"56 p. ","costCenters":[],"links":[{"id":3007,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri014158","linkFileType":{"id":5,"text":"html"}},{"id":159868,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac6e4b07f02db67a2db","contributors":{"authors":[{"text":"Renken, R.A.","contributorId":99161,"corporation":false,"usgs":true,"family":"Renken","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":204562,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Patterson, R.D.","contributorId":57507,"corporation":false,"usgs":true,"family":"Patterson","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":204560,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Orzol, L.L.","contributorId":63419,"corporation":false,"usgs":true,"family":"Orzol","given":"L.L.","affiliations":[],"preferred":false,"id":204561,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dixon, Joann","contributorId":19981,"corporation":false,"usgs":true,"family":"Dixon","given":"Joann","affiliations":[],"preferred":false,"id":204559,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":61463,"text":"mf2384 - 2001 - Debris flows triggered by the El Nino rainstorm of February 2-3, 1998, Walpert Ridge and vicinity, Alameda County, California","interactions":[],"lastModifiedDate":"2017-03-07T09:41:02","indexId":"mf2384","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2384","title":"Debris flows triggered by the El Nino rainstorm of February 2-3, 1998, Walpert Ridge and vicinity, Alameda County, California","docAbstract":"On February 2 and 3, 1998, a rainstorm generated by the 1997-98 El Nino moved through the San Francisco Bay region of California triggering widespread slope failures. In the Walpert Ridge area of Alameda County 531 debris flows were triggered by the storm. These data depict the debris flows and landslides as polygons. The landslide polygons were mapped from 1:30,000 aerial photography using a PG2 photogrammetric plotter. The mapped debris flows and landslides were digitized manually in ArcInfo.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf2384","usgsCitation":"Coe, J.A., and Godt, J., 2001, Debris flows triggered by the El Nino rainstorm of February 2-3, 1998, Walpert Ridge and vicinity, Alameda County, California: U.S. Geological Survey Miscellaneous Field Studies Map 2384, Three sheets; 58 by 36 inches (in color), https://doi.org/10.3133/mf2384.","productDescription":"Three sheets; 58 by 36 inches (in color)","costCenters":[],"links":[{"id":182274,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":110239,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_46654.htm","linkFileType":{"id":5,"text":"html"},"description":"46654"},{"id":6034,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2002/mf-2384/","linkFileType":{"id":5,"text":"html"}}],"scale":"24000","country":"United States","state":"California","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.0675,37.534166666666664 ], [ -122.0675,37.666666666666664 ], [ -121.86749999999999,37.666666666666664 ], [ -121.86749999999999,37.534166666666664 ], [ -122.0675,37.534166666666664 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abbe4b07f02db6727b8","contributors":{"authors":[{"text":"Coe, J. A.","contributorId":8867,"corporation":false,"usgs":true,"family":"Coe","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":265699,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Godt, J. W.","contributorId":76732,"corporation":false,"usgs":true,"family":"Godt","given":"J. W.","affiliations":[],"preferred":false,"id":265700,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":58059,"text":"wri20014161 - 2001 - Assessment of habitat, fish communities, and streamflow requirements for habitat protection, Ipswich River, Massachusetts, 1998-99","interactions":[],"lastModifiedDate":"2026-01-22T16:58:03.327195","indexId":"wri20014161","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2001-4161","title":"Assessment of habitat, fish communities, and streamflow requirements for habitat protection, Ipswich River, Massachusetts, 1998-99","docAbstract":"<p><span>The relations among stream habitat, fish communities, and hydrologic conditions were investigated in the Ipswich River Basin in northeastern Massachusetts. Data were assessed from 27 sites on the mainstem of the Ipswich River from July to September 1998 and from 10 sites on 5 major tributaries in July and August 1999. Habitat assessments made in 1998 determined that in a year with sustained streamflow for most of the summer, the Ipswich River contains diverse, high-quality aquatic habitat. Channel types are predominantly low gradient glides, pools, and impoundments, with a sandy streambed and a forest or shrub riparian zone. Features that provide fish habitat are located mostly along stream margins; these features include overhanging brush, undercut banks, exposed roots, and woody debris. These habitat features decrease in availability to aquatic communities with declining streamflows and generally become unavailable after streamflows drop to the point where the edge of water recedes from the stream banks.</span><br><br><span>The mainstem and tributaries were sampled to determine fish species composition, relative abundance, and length frequency. Fish sampling indicates that the fish community in the Ipswich River is currently a warm-water fish community dominated by pond-type fish. However, historical temperature data, and survival of stocked trout in the mainstem Ipswich into late summer of 1998, indicate that the Ipswich River potentially could support cold-water fish species if adequate flows are maintained. Dominant fish species sampled in the mainstem Ipswich River were redfin pickerel (</span><i>Esox americanus</i><span>), American eel (</span><i>Anguilla rostrata</i><span>), and pumpkinseed (</span><i>Lepomis gibbosus</i><span>), which together represented 41, 22, and 10 percent, respectively, of 4,745 fish sampled. The fish communities of the mainstem and tributaries contained few fluvial-dependent or fluvial-specialist species (requiring flow), and were dominated by macrohabitat generalists (tolerant of low-flow, warm-water, and ponded conditions). In comparison to a nearby river (Lamprey River, N.H.), and a reference fish community developed for inland New England streams, the Ipswich fish community would be expected to have appreciably higher percentages of fluvial-dependent and fluvial-specialist species were streamflows restored.</span><br><br><span>Four riffle sites on the mainstem of the Ipswich River were identified as critical habitat areas because they are among the first sites to exhibit fish-passage problems or to dry during low flows. A watershed-scale precipitation-runoff model previously developed for the Ipswich River was used to simulate streamflows at these four sites for the period 1961­95 under no withdrawals (for water supply) and 1991 land use to evaluate habitat suitability under conditions that approximate the natural flow conditions. These simulated flows were used to calculate streamflow requirements by the Tennant and New England Aquatic-Base-Flow methods. Stream channels were surveyed at the critical riffle sites, and Water Surface Profile models were used to simulate streamflows and hydraulic characteristics needed for determining streamflow requirements by use of the Wetted-Perimeter and R2Cross methods. Normalized by drainage area to units of cubic feet per second per square mile, these methods yielded the following streamflow requirements: 0.50 cubic feet per second per square mile for the Tennant 30-percent Q</span><sub>MA</sub><span>&nbsp;method, 0.42 cubic feet per second per square mile for the wetted-perimeter value necessary to maintain wetted perimeter at three altered riffle sites, 0.42 cubic feet per second per square mile for the R2Cross value required to maintain R2Cross hydraulic criteria at a natural riffle site, and 0.34 cubic feet per second per square mile for the aquatic-base-flow median of monthly mean flows for August for the simulated 1961­95 period under no withdrawals and 1991 land use. The mean streamflow requirement determined from these four methods is 0.42 cubic feet per second per square mile. This flow would represent an average flow-exceedence value for the six study sites of about 77 percent under simulated flows with no withdrawals. For these flows, the 70-, 80-, and 90-percent exceedence flows averaged 0.59, 0.37, and 0.21 cubic feet per second per square mile, respectively, and the 7-day, 10-year low flow statistic at the two gaged sites averaged 0.08 cubic feet per second per square mile. Simulated flows under no withdrawals were used to determine monthly mean flows and other flow statistics used in the Range of Variability Approach to define a flow regime that mimics the river's natural flow regime.</span></p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri20014161","collaboration":"Prepared in cooperation with the Massachusetts Department of Environmental Management; Massachusetts Department of Environmental Protection; and the Massachusetts Department of Fisheries, Wildlife, and Environmental Law Enforcement, Massachusetts Division of Fisheries and Wildlife","usgsCitation":"Armstrong, D.S., Richards, T.A., and Parker, G.W., 2001, Assessment of habitat, fish communities, and streamflow requirements for habitat protection, Ipswich River, Massachusetts, 1998-99: U.S. Geological Survey Water-Resources Investigations Report 2001-4161, Report: vi, 72 p.; 4 Appendices, https://doi.org/10.3133/wri20014161.","productDescription":"Report: vi, 72 p.; 4 Appendices","costCenters":[{"id":377,"text":"Massachusetts-Rhode Island Water Science Center","active":false,"usgs":true}],"links":[{"id":9425,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/wri/wri01-4161/","linkFileType":{"id":5,"text":"html"}},{"id":184150,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":423582,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_49779.htm","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Massachusetts","otherGeospatial":"Ipswich River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -71.2,\n              42.6889\n            ],\n            [\n              -71.2,\n              42.5\n            ],\n            [\n              -70.8,\n              42.5\n            ],\n            [\n              -70.8,\n              42.6889\n            ],\n            [\n              -71.2,\n              42.6889\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abbe4b07f02db672945","contributors":{"authors":[{"text":"Armstrong, David S. 0000-0003-1695-1233 darmstro@usgs.gov","orcid":"https://orcid.org/0000-0003-1695-1233","contributorId":1390,"corporation":false,"usgs":true,"family":"Armstrong","given":"David","email":"darmstro@usgs.gov","middleInitial":"S.","affiliations":[{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":true,"id":258241,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Richards, Todd A.","contributorId":52266,"corporation":false,"usgs":true,"family":"Richards","given":"Todd","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":258243,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Parker, Gene W. gwparker@usgs.gov","contributorId":1392,"corporation":false,"usgs":true,"family":"Parker","given":"Gene","email":"gwparker@usgs.gov","middleInitial":"W.","affiliations":[],"preferred":true,"id":258242,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":30989,"text":"wri014226 - 2001 - Hydrologic conditions and budgets for the Black Hills of South Dakota, through water year 1998","interactions":[],"lastModifiedDate":"2012-02-02T00:09:00","indexId":"wri014226","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2001-4226","title":"Hydrologic conditions and budgets for the Black Hills of South Dakota, through water year 1998","docAbstract":"The Black Hills are an important recharge area for aquifers in the northern Great Plains. The surface-water hydrology of the area is highly influenced by interactions with the Madison and Minnelusa aquifers, including large springs and streamflow loss zones. Defining responses of ground water and streamflow to a variety of hydrogeologic influences is critical to development of hydrologic budgets for ground- and surface-water systems. \r\n\r\nHydrographs for 52 observation wells and 1 cave site are used to show ground-water response to cumulative precipitation departures. Aquifers considered include the Precambrian, Deadwood, Madison, Minnelusa, Minnekahta, and Inyan Kara aquifers, with wells completed in the Inyan Kara aquifer generally showing small response to precipitation patterns. Many wells completed in the other aquifers have large short- and long-term fluctuations in water levels. Madison and Minnelusa wells in the southern Black Hills show a general tendency for smaller water-level fluctuations than in other areas. \r\n\r\nStreamflow characteristics and relations with precipitation are examined for 33 gaging stations representative of five different hydrogeologic settings that are identified. The ?limestone headwater? setting occurs within outcrops of the Madison Limestone and Minnelusa Formation along the ?Limestone Plateau,? where direct runoff is uncommon and streamflow consists almost entirely of base flow originating as ground-water discharge from headwater springs. Thus, variability in daily, monthly, and annual flow is small. Annual streamflow correlates poorly with precipitation; however, consideration of ?moving averages? (involving up to 11 years of annual precipitation data for some stations) improves relations substantially.\r\n\r\nThe ?crystalline core? area is encircled by the outcrop band of the Madison and Minnelusa Formations and is dominated by igneous and metamorphic rocks. Base flow ranges from about 41 to 73 percent for representative streams; however, monthly flow records demonstrate shortterm response to precipitation, which probably indicates a relatively large component of interflow. Streamflow generally correlates well with annual precipitation, with r2 values ranging from 0.52 to 0.87.\r\n\r\nDowngradient from the crystalline core area is the ?loss zone? setting, where streamflow losses occur to outcrops of the Madison and Minnelusa Formations. Relations between streamflow and annual precipitation are defined by a power equation for the only two representative gages in this setting. The loss zone and ?artesian spring? areas are combined because many artesian springs are located along stream channels that are influenced by streamflow losses and several artesian springs are within outcrops of the Minnelusa Formation. Streamflow characteristics for artesian springs generally have small variability and poor correlations with annual precipitation because of large influence from relatively stable ground-water discharge. The ?exterior? setting is located downgradient from the outcrop of the Inyan Kara Group, which coincides with the outer extent of the loss zone/artesian spring setting. Large flow variability is characteristic for this setting, and base flow generally is smaller than for other settings. \r\n\r\nBasin yields are highly variable, with the largest yields occurring in high-altitude areas of the northern Black Hills that receive large annual precipitation. Relations between annual yield efficiency and precipitation were applied by previous investigators in developing a method for estimating annual precipitation recharge, based on annual precipitation. The resulting ?yield-efficiency algorithm? compares spatial distributions for annual precipitation, average annual precipitation, and efficiency of basin yield. This algorithm is applied in estimating precipitation recharge on aquifer outcrops and in estimating streamflow yield from various outcrop areas, for purposes of developing average hydrologic budgets ","language":"ENGLISH","doi":"10.3133/wri014226","usgsCitation":"Driscoll, D.G., and Carter, J.M., 2001, Hydrologic conditions and budgets for the Black Hills of South Dakota, through water year 1998: U.S. Geological Survey Water-Resources Investigations Report 2001-4226, vi, 143 p. : ill. (some col.), maps (some col.) ; 28 cm. , https://doi.org/10.3133/wri014226.","productDescription":"vi, 143 p. : ill. (some col.), maps (some col.) ; 28 cm. ","costCenters":[],"links":[{"id":160022,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2982,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri014226/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db6835bb","contributors":{"authors":[{"text":"Driscoll, Daniel G. dgdrisco@usgs.gov","contributorId":1558,"corporation":false,"usgs":true,"family":"Driscoll","given":"Daniel","email":"dgdrisco@usgs.gov","middleInitial":"G.","affiliations":[{"id":562,"text":"South Dakota Water Science Center","active":true,"usgs":true}],"preferred":true,"id":204530,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carter, Janet M. 0000-0002-6376-3473 jmcarter@usgs.gov","orcid":"https://orcid.org/0000-0002-6376-3473","contributorId":339,"corporation":false,"usgs":true,"family":"Carter","given":"Janet","email":"jmcarter@usgs.gov","middleInitial":"M.","affiliations":[{"id":562,"text":"South Dakota Water Science Center","active":true,"usgs":true},{"id":34685,"text":"Dakota Water Science Center","active":true,"usgs":true}],"preferred":false,"id":204529,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":31498,"text":"ofr01443 - 2001 - Landslides triggered by Hurricane Mitch in Guatemala -- inventory and discussion","interactions":[],"lastModifiedDate":"2012-02-02T00:09:13","indexId":"ofr01443","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-443","title":"Landslides triggered by Hurricane Mitch in Guatemala -- inventory and discussion","docAbstract":"The torrential rains that accompanied\r\nHurricane Mitch in October and November\r\nof 1998 triggered thousands of landslides in\r\nthe moderate to steep terrain bordering the\r\nMotagua and Polochic Rivers in eastern\r\nGuatemala. Using aerial photographs taken\r\nbetween January and March 2000 we\r\nmapped all visible landslides larger than\r\nabout 15 m in minimum dimension in a\r\nstudy area of 10,000 km2 encompassing\r\ntwenty 1:50,000-scale topographic map\r\nquadrangles.\r\nRainfall from Hurricane Mitch was\r\nexceptional because it was geographically\r\nwidespread, prolonged over a period of\r\nabout a week, moderate to heavy in intensity,\r\nand occurred at the end of the rainy season\r\nwhen the ground already had a high\r\nmoisture content. As documented in this\r\nreport, this type of rainfall, on saturated or\r\nnearly saturated ground, has the capability to\r\ntrigger both shallow and deep-seated landslides\r\nover a large area.\r\nWe mapped about 11,500 landslides in\r\nthe study area. The mapped landslides were\r\nof two general types: relatively small, translational\r\nand rotational landslides that commonly\r\nmobilized into debris flows and covered\r\nless than several hectares in area (not\r\nincluding flow paths), and large, commonly\r\ntranslational, landslides that sometimes generated\r\ndebris flows and covered between\r\n15 ha and 25 ha (not including flow paths).\r\nThe main concentrations of landslides are on\r\nmoderate-to-steep hillslopes underlain by\r\ndiverse geologic units. For the purpose of\r\ndescribing the mapped landslides, we divided\r\nthe study area into five distinct regions\r\nbased on differing geologic and geomorphic\r\ncharacteristics. These regions include the\r\nupper Polochic valley and surrounding highlands,\r\nthe central Sierra de las Minas, the\r\nhills surrounding La Union and Zacapa, the\r\neastern Sierra de las Minas, and the border\r\nregion with Honduras. All of these areas\r\nreceived between 200 mm and 600 mm of\r\nrain over a 13-day period between October\r\n25 and November 6. The highest rainfall\r\namounts (400 mm to 600 mm) occurred in\r\nthe Upper Polochic valley and surrounding\r\nhighlands and in the central Sierra de las\r\nMinas. The lower rainfall amounts (200 mm\r\nto 400 mm) occurred in the hills surrounding\r\nLa Union, the eastern Sierra de las\r\nMinas, and in the border region with\r\nHonduras. In general, the rainfall received in\r\nthese areas is roughly equivalent to the average\r\nprecipitation received in a 1-year period.\r\nWe used 10-m digital elevation models\r\n(DEMs) generated from contours on two\r\nquadrangles in the central Sierra de las\r\nMinas to create a map showing areas that\r\nwere susceptible to landslides during\r\nHurricane Mitch. To create the Hurricane\r\nMitch susceptibility map, we developed a\r\nsusceptibility threshold equation based on\r\nelevation and gradient. The analysis indicates\r\nthat, at least on two quadrangles, gradients\r\nless than 9? were not susceptible to\r\nlandslides during Hurricane Mitch. The\r\nslope of the line defined by the threshold\r\nequation indicates that less rainfall was\r\nrequired to initiate landslides on steep gradients\r\nthan on shallow gradients. Ninety percent\r\nof the mapped landslides that were triggered\r\nby Hurricane Mitch are within the\r\nsusceptible zone shown on the map. Eightysix\r\npercent of landslides that were mapped\r\nas predating Hurricane Mitch, and all landslides\r\nmapped as postdating Hurricane\r\nMitch, are within the susceptible zone.\r\nWe used LAHARZ software to model the\r\npotential downstream area affected by debris\r\nif a large landslide dam on the Rio La Lima\r\nwere to fail. The model shows that the area\r\naffected would be similar to the area that\r\nwas affected by a debris flow that mobilized\r\nfrom a large landslide along the Rio La\r\nLima during Hurricane Mitch.\r\nThe characteristics of rainfall-triggered\r\nlandslides described in this report can be\r\nused as a partial guide to future landslide\r\nactivity triggered by rainstorms. On the\r\nbasis of existing data, hazardous areas\r\ninclude: moderate to steep hillslopes and\r\n","language":"ENGLISH","doi":"10.3133/ofr01443","usgsCitation":"Bucknam, R.C., Coe, J.A., Chavarria, M.M., Godt, J.W., Tarr, A.C., Bradley, L., Rafferty, S.A., Hancock, D., Dart, R.L., and Johnson, M.L., 2001, Landslides triggered by Hurricane Mitch in Guatemala -- inventory and discussion (Version 1.0): U.S. Geological Survey Open-File Report 2001-443, 38 p., https://doi.org/10.3133/ofr01443.","productDescription":"38 p.","costCenters":[],"links":[{"id":161123,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2682,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/ofr-01-0443/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1be4b07f02db6a91b2","contributors":{"authors":[{"text":"Bucknam, Robert C.","contributorId":104490,"corporation":false,"usgs":true,"family":"Bucknam","given":"Robert","email":"","middleInitial":"C.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":206212,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Coe, Jeffrey A. 0000-0002-0842-9608 jcoe@usgs.gov","orcid":"https://orcid.org/0000-0002-0842-9608","contributorId":1333,"corporation":false,"usgs":true,"family":"Coe","given":"Jeffrey","email":"jcoe@usgs.gov","middleInitial":"A.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true},{"id":309,"text":"Geology and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":206206,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chavarria, Manuel Mota","contributorId":39024,"corporation":false,"usgs":true,"family":"Chavarria","given":"Manuel","email":"","middleInitial":"Mota","affiliations":[],"preferred":false,"id":206209,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Godt, Jonathan W. 0000-0002-8737-2493 jgodt@usgs.gov","orcid":"https://orcid.org/0000-0002-8737-2493","contributorId":1166,"corporation":false,"usgs":true,"family":"Godt","given":"Jonathan","email":"jgodt@usgs.gov","middleInitial":"W.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true},{"id":508,"text":"Office of the AD Hazards","active":true,"usgs":true}],"preferred":true,"id":206204,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Tarr, Arthur C. atarr@usgs.gov","contributorId":1925,"corporation":false,"usgs":true,"family":"Tarr","given":"Arthur","email":"atarr@usgs.gov","middleInitial":"C.","affiliations":[],"preferred":true,"id":206207,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bradley, Lee-Ann bradley@usgs.gov","contributorId":1141,"corporation":false,"usgs":true,"family":"Bradley","given":"Lee-Ann","email":"bradley@usgs.gov","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":false,"id":206203,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Rafferty, Sharon A.","contributorId":33360,"corporation":false,"usgs":true,"family":"Rafferty","given":"Sharon","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":206208,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Hancock, Dean","contributorId":73652,"corporation":false,"usgs":true,"family":"Hancock","given":"Dean","affiliations":[],"preferred":false,"id":206211,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Dart, Richard L. dart@usgs.gov","contributorId":1209,"corporation":false,"usgs":true,"family":"Dart","given":"Richard","email":"dart@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":206205,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Johnson, Margo L.","contributorId":54626,"corporation":false,"usgs":true,"family":"Johnson","given":"Margo","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":206210,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":23945,"text":"ofr00266 - 2001 - Algal Data from Selected Sites in the Upper Colorado River Basin, Colorado, Water Years 1996-97","interactions":[],"lastModifiedDate":"2012-02-02T00:08:00","indexId":"ofr00266","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-266","title":"Algal Data from Selected Sites in the Upper Colorado River Basin, Colorado, Water Years 1996-97","docAbstract":"Algal community samples were collected at 15 sites in the Upper Colorado River Basin in Colorado as part of the National Water-Quality Assessment Program during water years 1996-97. Sites sampled were located in two physiographic provinces, the Southern Rocky Mountains and the Colorado Plateaus, and represented agricultural, mining, urban, and mixed land uses and background conditions. Algal samples were collected once per year during low-flow conditions.\rQuantitative algal samples were collected within two targeted instream habitat types including a taxonomically richest-targeted habitat and a depositional-targeted habitat. This report presents the algal community data collected at the fixed sites in the Upper Colorado River Basin study unit. Algal data include densities (abundance of cells per square centimeter of substrate) and biovolumes (cubic micrometers of cells per square centimeter of substrate) for the two habitat types. Quality-assurance and quality-control results for algal samples indicate that the largest sampling variability tends to occur in samples from small streams.","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey :\r\nInformation Services [distributor],","doi":"10.3133/ofr00266","issn":"0094-9140","usgsCitation":"Mize, S.V., and Deacon, J.R., 2001, Algal Data from Selected Sites in the Upper Colorado River Basin, Colorado, Water Years 1996-97: U.S. Geological Survey Open-File Report 2000-266, v, 63 p. :map ;28 cm., https://doi.org/10.3133/ofr00266.","productDescription":"v, 63 p. :map ;28 cm.","costCenters":[],"links":[{"id":1649,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/ofr00-266/","linkFileType":{"id":5,"text":"html"}},{"id":154928,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e48c6e4b07f02db53fe52","contributors":{"authors":[{"text":"Mize, Scott V. 0000-0001-6751-5568 svmize@usgs.gov","orcid":"https://orcid.org/0000-0001-6751-5568","contributorId":2997,"corporation":false,"usgs":true,"family":"Mize","given":"Scott","email":"svmize@usgs.gov","middleInitial":"V.","affiliations":[{"id":369,"text":"Louisiana Water Science Center","active":true,"usgs":true}],"preferred":true,"id":191019,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Deacon, Jeffrey R. 0000-0001-5793-6940 jrdeacon@usgs.gov","orcid":"https://orcid.org/0000-0001-5793-6940","contributorId":2786,"corporation":false,"usgs":true,"family":"Deacon","given":"Jeffrey","email":"jrdeacon@usgs.gov","middleInitial":"R.","affiliations":[{"id":405,"text":"NH/VT office of New England Water Science Center","active":true,"usgs":true},{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true},{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true}],"preferred":true,"id":191018,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":31495,"text":"ofr01429 - 2001 - Environmental studies of the World Trade Center area after the September 11, 2001 attack","interactions":[],"lastModifiedDate":"2017-07-14T10:29:00","indexId":"ofr01429","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-429","title":"Environmental studies of the World Trade Center area after the September 11, 2001 attack","docAbstract":"<p class=\"textindent\">This web site describes the results of an interdisciplinary environmental characterization of the World Trade Center (WTC) area after September 11, 2001.</p><p class=\"textindent\">Information presented in this site was first made available to the World Trade Center emergency response teams on September 18, 2001 (Thermal hot spot information), and September 27, 2001 (maps and compositional results).</p><p class=\"textindent\">The Airborne Visible / Infrared Imaging Spectrometer (AVIRIS), a hyperspectral remote sensing instrument, was flown by JPL/NASA over the World Trade Center (WTC) area on September 16, 18, 22, and 23, 2001 (<a href=\"http://aviris.jpl.nasa.gov/\" data-mce-href=\"http://aviris.jpl.nasa.gov/\"><span>&nbsp;</span>Link to the AVIRIS JPL data facility)</a>. A 2-person USGS crew collected samples of dusts and airfall debris from more than 35 localities within a 1-km radius of the World trade Center site on the evenings of September 17 and 18, 2001. Two samples were collected of indoor locations that were presumably not affected by rainfall (there was a rainstorm on September 14). Two samples of material coating a steel beam in the WTC debris were also collected. The USGS ground crew also carried out on-the-ground reflectance spectroscopy measurements during daylight hours to field calibrate AVIRIS remote sensing data. Radiance calibration and rectification of the AVIRIS data were done at JPL/NASA. Surface reflectance calibration, spectral mapping, and interpretation were done at the USGS Imaging Spectroscopy Lab in Denver. The dust/debris and beam-insulation samples were analyzed for a variety of mineralogical and chemical parameters using Reflectance Spectroscopy (RS), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), chemical analysis, and chemical leach test techniques in U.S. Geological Survey laboratories in Denver, Colorado.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr01429","usgsCitation":"Clark, R.N., Green, R., Swayze, G.A., Meeker, G., Sutley, S., Hoefen, T.M., Livo, K., Plumlee, G., Pavri, B., Sarture, C., Wilson, S., Hageman, P., Lamothe, P., Vance, J.S., Boardman, J., Brownfield, I., Gent, C., Morath, L.C., Taggart, J., Theodorakos, P.M., and Adams, M., 2001, Environmental studies of the World Trade Center area after the September 11, 2001 attack (Version 1.1): U.S. Geological Survey Open-File Report 2001-429, HTML Document, https://doi.org/10.3133/ofr01429.","productDescription":"HTML Document","costCenters":[],"links":[{"id":161317,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2667,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/ofr-01-0429/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"New York","city":"New York City","otherGeospatial":"World Trade Center complex","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -74.02081489562988,\n              40.70543274083784\n            ],\n            [\n              -74.00596618652344,\n              40.70543274083784\n            ],\n            [\n              -74.00596618652344,\n              40.71688335199443\n            ],\n            [\n              -74.02081489562988,\n              40.71688335199443\n            ],\n            [\n              -74.02081489562988,\n              40.70543274083784\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","edition":"Version 1.1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a13e4b07f02db602238","contributors":{"authors":[{"text":"Clark, Roger N. 0000-0002-7021-1220 rclark@usgs.gov","orcid":"https://orcid.org/0000-0002-7021-1220","contributorId":515,"corporation":false,"usgs":true,"family":"Clark","given":"Roger","email":"rclark@usgs.gov","middleInitial":"N.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":206176,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Green, Robert O.","contributorId":56271,"corporation":false,"usgs":true,"family":"Green","given":"Robert O.","affiliations":[],"preferred":false,"id":206189,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Swayze, Gregg A. 0000-0002-1814-7823 gswayze@usgs.gov","orcid":"https://orcid.org/0000-0002-1814-7823","contributorId":518,"corporation":false,"usgs":true,"family":"Swayze","given":"Gregg","email":"gswayze@usgs.gov","middleInitial":"A.","affiliations":[{"id":309,"text":"Geology and Geophysics Science Center","active":true,"usgs":true},{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":206177,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Meeker, Greg","contributorId":20802,"corporation":false,"usgs":true,"family":"Meeker","given":"Greg","affiliations":[],"preferred":false,"id":206185,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sutley, Steve","contributorId":11059,"corporation":false,"usgs":true,"family":"Sutley","given":"Steve","affiliations":[],"preferred":false,"id":206181,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hoefen, Todd M. 0000-0002-3083-5987 thoefen@usgs.gov","orcid":"https://orcid.org/0000-0002-3083-5987","contributorId":403,"corporation":false,"usgs":true,"family":"Hoefen","given":"Todd","email":"thoefen@usgs.gov","middleInitial":"M.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":206175,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Livo, K. Eric 0000-0001-7331-8130","orcid":"https://orcid.org/0000-0001-7331-8130","contributorId":26338,"corporation":false,"usgs":true,"family":"Livo","given":"K. Eric","affiliations":[],"preferred":false,"id":206186,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Plumlee, Geoff","contributorId":16478,"corporation":false,"usgs":true,"family":"Plumlee","given":"Geoff","email":"","affiliations":[],"preferred":false,"id":206183,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Pavri, Betina","contributorId":92916,"corporation":false,"usgs":true,"family":"Pavri","given":"Betina","email":"","affiliations":[],"preferred":false,"id":206194,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Sarture, Chuck","contributorId":74241,"corporation":false,"usgs":true,"family":"Sarture","given":"Chuck","affiliations":[],"preferred":false,"id":206192,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Wilson, Steve","contributorId":57145,"corporation":false,"usgs":true,"family":"Wilson","given":"Steve","email":"","affiliations":[],"preferred":false,"id":206190,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Hageman, Phil 0000-0002-3440-2150","orcid":"https://orcid.org/0000-0002-3440-2150","contributorId":69573,"corporation":false,"usgs":true,"family":"Hageman","given":"Phil","affiliations":[],"preferred":false,"id":206191,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Lamothe, Paul","contributorId":18728,"corporation":false,"usgs":true,"family":"Lamothe","given":"Paul","affiliations":[],"preferred":false,"id":206184,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Vance, J. Sam","contributorId":9692,"corporation":false,"usgs":true,"family":"Vance","given":"J.","email":"","middleInitial":"Sam","affiliations":[],"preferred":false,"id":206180,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Boardman, Joe","contributorId":30663,"corporation":false,"usgs":true,"family":"Boardman","given":"Joe","email":"","affiliations":[],"preferred":false,"id":206187,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Brownfield, Isabelle","contributorId":42986,"corporation":false,"usgs":true,"family":"Brownfield","given":"Isabelle","affiliations":[],"preferred":false,"id":206188,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Gent, Carol","contributorId":11468,"corporation":false,"usgs":true,"family":"Gent","given":"Carol","affiliations":[],"preferred":false,"id":206182,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Morath, Laurie C.","contributorId":99225,"corporation":false,"usgs":true,"family":"Morath","given":"Laurie","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":206195,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"Taggart, Joseph","contributorId":77413,"corporation":false,"usgs":true,"family":"Taggart","given":"Joseph","affiliations":[],"preferred":false,"id":206193,"contributorType":{"id":1,"text":"Authors"},"rank":19},{"text":"Theodorakos, Peter M. ptheodor@usgs.gov","contributorId":1566,"corporation":false,"usgs":true,"family":"Theodorakos","given":"Peter","email":"ptheodor@usgs.gov","middleInitial":"M.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":206179,"contributorType":{"id":1,"text":"Authors"},"rank":20},{"text":"Adams, Monique madams@usgs.gov","contributorId":1231,"corporation":false,"usgs":true,"family":"Adams","given":"Monique","email":"madams@usgs.gov","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":206178,"contributorType":{"id":1,"text":"Authors"},"rank":21}]}}
,{"id":30991,"text":"wri014256 - 2001 - Hydrologic considerations for estimation of storage-capacity requirements of impounding and side-channel reservoirs for water supply in Ohio","interactions":[],"lastModifiedDate":"2023-01-04T20:26:10.961113","indexId":"wri014256","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2001-4256","displayTitle":"Hydrologic Considerations for Estimation of Storage-Capacity Requirements of Impounding and Side-Channel Reservoirs Used for Water Supply in Ohio","title":"Hydrologic considerations for estimation of storage-capacity requirements of impounding and side-channel reservoirs for water supply in Ohio","docAbstract":"<p>This report provides data and methods to aid in the hydrologic design or evaluation of impounding reservoirs and side-channel reservoirs used for water supply in Ohio. Data from 117 streamflow-gaging stations throughout Ohio were analyzed by means of nonsequential-mass-curve-analysis techniques to develop relations between storage requirements, water demand, duration, and frequency. Information also is provided on minimum runoff for selected durations and frequencies. Systematic record lengths for the streamflow-gaging stations ranged from about 10 to 75 years; however, in many cases, additional streamflow record was synthesized.</p><p>For impounding reservoirs, families of curves are provided to facilitate the estimation of storage requirements as a function of demand and the ratio of the 7-day, 2-year low flow to the mean annual flow. Information is provided with which to evaluate separately the effects of evaporation on storage requirements.</p><p>Comparisons of storage requirements for impounding reservoirs determined by nonsequential-mass-curve-analysis techniques with storage requirements determined by annual-mass-curve techniques that employ probability routing to account for carryover-storage requirements indicate that large differences in computed required storages can result from the two methods, particularly for conditions where demand cannot be met from within-year storage.</p><p>For side-channel reservoirs, tables of demand-storage-frequency information are provided for a primary pump relation consisting of one variable-speed pump with a pumping capacity that ranges from 0.1 to 20 times demand. Tables of adjustment ratios are provided to facilitate determination of storage requirements for 19 other pump sets consisting of assorted combinations of fixed-speed pumps or variable-speed pumps with aggregate pumping capacities smaller than or equal to the primary pump relation. The effects of evaporation on side-channel reservoir storage requirements are incorporated into the storage-requirement estimates. The effects of an instream-flow requirement equal to the 80-percent-duration flow are also incorporated into the storage-requirement estimates.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wri014256","usgsCitation":"Koltun, G., 2001, Hydrologic considerations for estimation of storage-capacity requirements of impounding and side-channel reservoirs for water supply in Ohio: U.S. Geological Survey Water-Resources Investigations Report 2001-4256, iv, 418 p., https://doi.org/10.3133/wri014256.","productDescription":"iv, 418 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":2983,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/wri/2001/4256/wri20014256.pdf","text":"Report","linkFileType":{"id":1,"text":"pdf"},"description":"WRI 2001-4256"},{"id":411375,"rank":4,"type":{"id":36,"text":"NGMDB Index 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 \"}}]}","contact":"<p><a href=\"mailto:dc_oh@usgs.gov\" data-mce-href=\"mailto:dc_oh@usgs.gov\">Director</a>, <a href=\"https://www.usgs.gov/centers/oki-water/\" data-mce-href=\"https://www.usgs.gov/centers/oki-water/\">Ohio Water Science Center</a><br>U.S. Geological Survey<br>6460 Busch Blvd. <br>Columbus, OH 43229</p>","tableOfContents":"<ul><li>Abstract</li><li>Introduction</li><li>Data and Methods</li><li>Summary</li><li>Applications</li><li>References Cited</li><li>Appendix</li></ul>","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a27e4b07f02db6100eb","contributors":{"authors":[{"text":"Koltun, G. F. 0000-0003-0255-2960 gfkoltun@usgs.gov","orcid":"https://orcid.org/0000-0003-0255-2960","contributorId":1852,"corporation":false,"usgs":true,"family":"Koltun","given":"G. F.","email":"gfkoltun@usgs.gov","affiliations":[{"id":513,"text":"Ohio Water Science Center","active":true,"usgs":true}],"preferred":false,"id":204535,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31486,"text":"ofr01414 - 2001 - Vertical-deformation, water-level, microgravity, geodetic, water-chemistry, and flow-rate data collected during injection, storage, and recovery tests at Lancaster, Antelope Valley, California, September 1995 through September 1998","interactions":[],"lastModifiedDate":"2012-02-02T00:09:06","indexId":"ofr01414","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-414","title":"Vertical-deformation, water-level, microgravity, geodetic, water-chemistry, and flow-rate data collected during injection, storage, and recovery tests at Lancaster, Antelope Valley, California, September 1995 through September 1998","docAbstract":"A series of freshwater injection, storage, and recovery tests were conducted from September 1995 through September 1998 to evaluate the feasibility of artificially recharging ground water in the Lancaster area of the Antelope Valley, California. The tests used two production wells at a well field located in the southern part of the city of Lancaster. Monitoring networks were established at or in the vicinity of the test site to measure vertical deformation of the aquifer system, water-level fluctuations, land-surface deformation, water chemistry, and injection well flow rates during water injection and recovery. Data presented in this report were collected from a dual extensometer; 10 piezometers; 1 barometer; 27 active or abandoned production wells; 31 gravity stations; 124 bench marks; 1 permanent and 1 temporary continuous Global Positioning System (GPS) station; 3 tiltmeters; and 2 electromagnetic flowmeters from September 1995 through September 1998. This report discusses the location and design of the monitoring networks and the methods used to collect and process the data, and presents the data in tables and graphs.","language":"ENGLISH","doi":"10.3133/ofr01414","usgsCitation":"Metzger, L.F., Ikehara, M.E., and Howle, J.F., 2001, Vertical-deformation, water-level, microgravity, geodetic, water-chemistry, and flow-rate data collected during injection, storage, and recovery tests at Lancaster, Antelope Valley, California, September 1995 through September 1998: U.S. Geological Survey Open-File Report 2001-414, 149 p., https://doi.org/10.3133/ofr01414.","productDescription":"149 p.","costCenters":[],"links":[{"id":160739,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2658,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/ofr01414","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a13e4b07f02db602084","contributors":{"authors":[{"text":"Metzger, Loren F. 0000-0003-2454-2966 lmetzger@usgs.gov","orcid":"https://orcid.org/0000-0003-2454-2966","contributorId":1378,"corporation":false,"usgs":true,"family":"Metzger","given":"Loren","email":"lmetzger@usgs.gov","middleInitial":"F.","affiliations":[],"preferred":true,"id":206150,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ikehara, Marti E.","contributorId":53757,"corporation":false,"usgs":true,"family":"Ikehara","given":"Marti","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":206152,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Howle, James F. 0000-0003-0491-6203 jfhowle@usgs.gov","orcid":"https://orcid.org/0000-0003-0491-6203","contributorId":2225,"corporation":false,"usgs":true,"family":"Howle","given":"James","email":"jfhowle@usgs.gov","middleInitial":"F.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":206151,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":30990,"text":"wri014255 - 2001 - Concentrations and annual fluxes for selected water-quality constituents from the USGS National Stream Quality Accounting Network (NASQAN) 1996-2000","interactions":[],"lastModifiedDate":"2012-02-02T00:09:00","indexId":"wri014255","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2001-4255","title":"Concentrations and annual fluxes for selected water-quality constituents from the USGS National Stream Quality Accounting Network (NASQAN) 1996-2000","docAbstract":"This report contains concentrations and annual mass fluxes (loadings) for a broad range of water-quality constituents measured during 1996-2000 as part of the U.S. Geological Survey National Stream Quality Accounting Network (NASQAN). During this period, NASQAN operated a network of 40-42 stations in four of the largest river basins of the USA: the Colorado, the Columbia, the Mississippi (including the Missouri and Ohio), and the Rio Grande. The report contains surface-water quality data, streamflow data, field measurements (e.g. water temperature and pH), sediment-chemistry data, and quality-assurance data; interpretive products include annual and average loads, regression parameters for models used to estimate loads, sub-basin yield maps, maps depicting percent detections for censored constituents, and diagrams depicting flow-weighted average concentrations. Where possible, a regression model relating concentration to discharge and season was used for flux estimation. The interpretive context provided by annual loads includes identifying source and sink areas for constituents and estimating the loadings to receiving waters, such as reservoirs or the ocean. ","language":"ENGLISH","doi":"10.3133/wri014255","usgsCitation":"Kelly, V.J., Hooper, R.P., Aulenbach, B.T., and Janet, M., 2001, Concentrations and annual fluxes for selected water-quality constituents from the USGS National Stream Quality Accounting Network (NASQAN) 1996-2000: U.S. Geological Survey Water-Resources Investigations Report 2001-4255, Unpaginated, https://doi.org/10.3133/wri014255.","productDescription":"Unpaginated","onlineOnly":"Y","temporalStart":"1996-01-01","temporalEnd":"2000-12-31","costCenters":[{"id":443,"text":"National Stream Quality Accounting Network (NASQAN)","active":false,"usgs":true}],"links":[{"id":160023,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":8437,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/wri/wri014255/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b17e4b07f02db6a6206","contributors":{"authors":[{"text":"Kelly, Valerie J. vjkelly@usgs.gov","contributorId":4161,"corporation":false,"usgs":true,"family":"Kelly","given":"Valerie","email":"vjkelly@usgs.gov","middleInitial":"J.","affiliations":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"preferred":true,"id":204532,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hooper, Richard P.","contributorId":19144,"corporation":false,"usgs":true,"family":"Hooper","given":"Richard","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":204533,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Aulenbach, Brent T. 0000-0003-2863-1288 btaulenb@usgs.gov","orcid":"https://orcid.org/0000-0003-2863-1288","contributorId":3057,"corporation":false,"usgs":true,"family":"Aulenbach","given":"Brent","email":"btaulenb@usgs.gov","middleInitial":"T.","affiliations":[{"id":316,"text":"Georgia Water Science Center","active":true,"usgs":true},{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"preferred":true,"id":204531,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Janet, Mary","contributorId":62646,"corporation":false,"usgs":true,"family":"Janet","given":"Mary","affiliations":[],"preferred":false,"id":204534,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":30985,"text":"wri014135 - 2001 - Steady-state flow distribution and monthly flow duration in selected branches of St. Clair and Detroit rivers within the Great Lakes waterway","interactions":[],"lastModifiedDate":"2016-10-06T15:57:37","indexId":"wri014135","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2001-4135","title":"Steady-state flow distribution and monthly flow duration in selected branches of St. Clair and Detroit rivers within the Great Lakes waterway","docAbstract":"<p>St. Clair and Detroit Rivers are connecting channels between Lake Huron and Lake Erie in the Great Lakes waterway, and form part of the boundary between the United States and Canada. St. Clair River, the upper connecting channel, drains 222,400 square miles and has an average flow of about 182,000 cubic feet per second. Water from St. Clair River combines with local inflows and discharges into Lake St. Clair before flowing into Detroit River. In some reaches of St. Clair and Detroit Rivers, islands and dikes split the flow into two to four branches. Even when the flow in a reach is known, proportions of flows within individual branches of a reach are uncertain. Simple linear regression equations, subject to a flow continuity constraint, are developed to provide estimators of these proportions and flows. The equations are based on 533 paired measurements of flow in 13 reaches forming 31 branches. The equations provide a means for computing the expected values and uncertainties of steady-state flows on the basis of flow conditions specified at the upstream boundaries of the waterway. In 7 upstream reaches, flow is considered fixed because it can be determined on the basis of flows specified at waterway boundaries and flow continuity. In these reaches, the uncertainties of flow proportions indicated by the regression equations can be used directly to determine the uncertainties of the corresponding flows. In the remaining 6 downstream reaches, flow is considered uncertain because these reaches do not receive flow from all the branches of an upstream reach, or they receive flow from some branches of more than one upstream reach. Monte Carlo simulation analysis is used to quantify this increase in uncertainty associated with the propagation of uncertainties from upstream reaches to downstream reaches. To eliminate the need for Monte Carlo simulations for routine calculations, polynomial regression equations are developed to approximate the variation in uncertainties as a function of flow at the headwaters of St. Clair River. Finally, monthly flow-duration data on the main channels of St. Clair and Detroit Rivers are used with the equations developed in this report to estimate the steady-state flow-duration characteristics of selected branches. </p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Lansing, MI","doi":"10.3133/wri014135","usgsCitation":"Holtschlag, D., and Koschik, J., 2001, Steady-state flow distribution and monthly flow duration in selected branches of St. Clair and Detroit rivers within the Great Lakes waterway: U.S. Geological Survey Water-Resources Investigations Report 2001-4135, v, 58 p., https://doi.org/10.3133/wri014135.","productDescription":"v, 58 p.","costCenters":[{"id":382,"text":"Michigan Water Science Center","active":true,"usgs":true}],"links":[{"id":159995,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri014135.JPG"},{"id":2978,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri014135","linkFileType":{"id":5,"text":"html"}}],"country":"Canada, United States","otherGeospatial":"Detroit River, St. Clair River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -82.83004760742188,\n              42.5034904213673\n            ],\n            [\n              -82.83004760742188,\n              43.09095496313368\n            ],\n            [\n              -82.12142944335938,\n              43.09095496313368\n            ],\n            [\n              -82.12142944335938,\n              42.5034904213673\n            ],\n            [\n              -82.83004760742188,\n              42.5034904213673\n            ]\n          ]\n        ]\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -83.287353515625,\n              42.0064481470799\n            ],\n            [\n              -83.287353515625,\n              42.405206634470666\n            ],\n            [\n              -82.8643798828125,\n              42.405206634470666\n            ],\n            [\n              -82.8643798828125,\n              42.0064481470799\n            ],\n            [\n              -83.287353515625,\n              42.0064481470799\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b32e4b07f02db6b464b","contributors":{"authors":[{"text":"Holtschlag, D. J. 0000-0001-5185-4928","orcid":"https://orcid.org/0000-0001-5185-4928","contributorId":102493,"corporation":false,"usgs":true,"family":"Holtschlag","given":"D. J.","affiliations":[],"preferred":false,"id":204523,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Koschik, J.A.","contributorId":101711,"corporation":false,"usgs":true,"family":"Koschik","given":"J.A.","affiliations":[],"preferred":false,"id":204522,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":31434,"text":"ofr2001393 - 2001 - Thickness and geometry of Cenozoic deposits in California Wash area, Nevada, based on gravity and seismic-reflection data","interactions":[],"lastModifiedDate":"2012-02-10T00:10:09","indexId":"ofr2001393","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-393","title":"Thickness and geometry of Cenozoic deposits in California Wash area, Nevada, based on gravity and seismic-reflection data","docAbstract":"Gravity and seismic-reflection data provide insights into the subsurface stratigraphy and structure of the California Wash area of southern Nevada. This area is part of the Lower Colorado flow system and stratigraphic and structural data are important inputs into developing the hydrogeologic framework. These data indicate that the basin beneath California Wash reaches depths of 2-3 km. The eastern margin of the basin coincides with a system of young (Quaternary and late Tertiary) faults, although both seismic and gravity data indicate that the major basin-bounding fault is 2-3 km west of the mapped young faults. Dry Lake Valley, the adjacent valley to the west, is characterized by thinner basin fill. The basin configuration beneath both California Wash and Dry Lake Valleys based on the inversion of gravity data is unconstrained because of the lack of gravity stations north of 36030?. Broad aeromagnetic anomalies beneath pre-Cenozoic basement in the Muddy Mountains and Arrow Canyon Range reflect Precambrian basement at depths of ~ 5 km. These rocks are probably barriers to ground-water flow,except where fractured.","language":"ENGLISH","doi":"10.3133/ofr2001393","usgsCitation":"Langenheim, V., Miller, J.J., Page, W.R., and Grow, J.A., 2001, Thickness and geometry of Cenozoic deposits in California Wash area, Nevada, based on gravity and seismic-reflection data: U.S. Geological Survey Open-File Report 2001-393, 27 p., https://doi.org/10.3133/ofr2001393.","productDescription":"27 p.","costCenters":[{"id":647,"text":"Western Earth Surface Processes","active":false,"usgs":true}],"links":[{"id":161482,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":8870,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/of01-393/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a54e4b07f02db62c596","contributors":{"authors":[{"text":"Langenheim, V.E. 0000-0003-2170-5213","orcid":"https://orcid.org/0000-0003-2170-5213","contributorId":54956,"corporation":false,"usgs":true,"family":"Langenheim","given":"V.E.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":205980,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, J. J.","contributorId":54588,"corporation":false,"usgs":true,"family":"Miller","given":"J.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":205979,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Page, W. R.","contributorId":73619,"corporation":false,"usgs":true,"family":"Page","given":"W.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":205981,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Grow, J. A.","contributorId":27858,"corporation":false,"usgs":true,"family":"Grow","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":205978,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":30709,"text":"fs08201 - 2001 - Discharge between San Antonio Bay and Aransas Bay, southern Gulf Coast, Texas, May-September 1999","interactions":[],"lastModifiedDate":"2017-01-12T13:22:55","indexId":"fs08201","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"082-01","title":"Discharge between San Antonio Bay and Aransas Bay, southern Gulf Coast, Texas, May-September 1999","docAbstract":"<p>Along the Gulf Coast of Texas, many estuaries and bays are important habitat and nurseries for aquatic life. San Antonio Bay and Aransas Bay, located about 50 and 30 miles northeast, respectively, of Corpus Christi, are two important estuarine nurseries on the southern Gulf Coast of Texas (fig. 1). According to the Texas Parks and Wildlife Department, “Almost 80 percent of the seagrasses [along the Texas Gulf Coast] are located in the Laguna Madre, an estuary that begins just south of Corpus Christi Bay and runs southward 140 miles to South Padre Island. Most of the remaining seagrasses, about 45,000 acres, are located in the heavily traveled San Antonio, Aransas and Corpus Christi Bay areas” (Shook, 2000).</p><p>Population growth has led to greater demands on water supplies in Texas. The Texas Water Development Board, the Texas Parks and Wildlife Department, and the Texas Natural Resource Conservation Commission have the cooperative task of determining inflows required to maintain the ecological health of the State’s streams, rivers, bays, and estuaries. To determine these inflow requirements, the three agencies collect data and conduct studies on the need for instream flows and freshwater/ saline water inflows to Texas estuaries.</p><p>To assist in the determination of freshwater inflow requirements, the U.S. Geological Survey (USGS), in cooperation with the Texas Water Development Board, conducted a hydrographic survey of discharge (flow) between San Antonio Bay and Aransas Bay during the period May–September 1999. Automated instrumentation and acoustic technology were used to maximize the amount and quality of data that were collected, while minimizing personnel requirements. This report documents the discharge measured at two sites between the bays during May–September 1999 and describes the influences of meteorologic (wind and tidal) and hydrologic (freshwater inflow) conditions on&nbsp;discharge between the two bays. The movement of water between the bays is controlled primarily by prevailing winds, tidal fluctuations, and freshwater inflows. An adequate understanding of mixing and physical exchange in the estuarine waters is fundamental to the assessment of the physical, chemical, and biological processes governing the aquatic system.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/fs08201","collaboration":"In cooperation with the Texas Water Development Board","usgsCitation":"East, J., 2001, Discharge between San Antonio Bay and Aransas Bay, southern Gulf Coast, Texas, May-September 1999: U.S. Geological Survey Fact Sheet 082-01, HTML Document; Report: 6 p. , https://doi.org/10.3133/fs08201.","productDescription":"HTML Document; Report: 6 p. ","costCenters":[{"id":583,"text":"Texas Water Science Center","active":true,"usgs":true}],"links":[{"id":121416,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/fs_082_01.bmp"},{"id":333100,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/fs/fs-082-01/pdf/fs_082-01.pdf","text":"Report","size":"6.28 MB","linkFileType":{"id":1,"text":"pdf"},"description":"Report"},{"id":3080,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/fs-082-01/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Texas","otherGeospatial":"Aransas Bay, San Antonio Bay","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -96.75,\n              28\n            ],\n            [\n              -96.75,\n              28.3\n            ],\n            [\n              -96.95,\n              28.3\n            ],\n            [\n              -96.95,\n              28\n            ],\n            [\n              -96.75,\n              28\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a82e4b07f02db64aa8d","contributors":{"authors":[{"text":"East, Jeffery W. jweast@usgs.gov","contributorId":1683,"corporation":false,"usgs":true,"family":"East","given":"Jeffery W.","email":"jweast@usgs.gov","affiliations":[{"id":583,"text":"Texas Water Science Center","active":true,"usgs":true}],"preferred":true,"id":203767,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":30708,"text":"fs08101 - 2001 - Water budget for the Nueces Estuary, Texas, May-October 1998","interactions":[],"lastModifiedDate":"2017-01-12T16:49:53","indexId":"fs08101","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"081-01","title":"Water budget for the Nueces Estuary, Texas, May-October 1998","docAbstract":"<p>The Texas Water Development Board (TWDB), Texas Parks and Wildlife Department (TPWD), and Texas Natural Resource Conservation Commission (TNRCC) are charged by the Texas Legislature with determining freshwater inflows required to maintain the ecological health of streams, bays, and estuaries in Texas. To determine required inflows, the three agencies collect data and conduct studies on the needs for freshwater inflows to Texas estuaries.</p><p>The U.S. Geological Survey (USGS), in cooperation with the TWDB, conducted a study in the Nueces estuary (fig. 1) during May–October 1998 to provide water-budget data for calibration of a TWDB model that will be used to estimate the effects of different freshwater inflow volumes on circulation and salinity in the estuary. The water budget (inflows and outflows) for the Nueces estuary was estimated by using (1) data collected during this study, (2) data collected at two upstream streamflow-gaging stations previous to this study, and (3) evaporation and return-flow data obtained from other agencies. This fact sheet describes the data-collection methods and the results of the water-budget estimates for the Nueces estuary.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/fs08101","collaboration":"In cooperation with the Texas Water Development Board","usgsCitation":"Ockerman, D., 2001, Water budget for the Nueces Estuary, Texas, May-October 1998: U.S. Geological Survey Fact Sheet 081-01, HTML Document; Report: 6 p. , https://doi.org/10.3133/fs08101.","productDescription":"HTML Document; Report: 6 p. ","costCenters":[{"id":583,"text":"Texas Water Science Center","active":true,"usgs":true}],"links":[{"id":123176,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/fs_081_01.bmp"},{"id":333155,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/fs/fs-081-01/pdf/FS_081-01.pdf","text":"Report","size":"701 KB","linkFileType":{"id":1,"text":"pdf"},"description":"Report"},{"id":3079,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/fs-081-01/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Texas","otherGeospatial":"Nueces Estuary","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -97.3,\n              27.75\n            ],\n            [\n              -97.3,\n              28\n            ],\n            [\n              -97.7,\n              28\n            ],\n            [\n              -97.7,\n              27.75\n            ],\n            [\n              -97.3,\n              27.75\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a08e4b07f02db5fa2f9","contributors":{"authors":[{"text":"Ockerman, D.J.","contributorId":38979,"corporation":false,"usgs":true,"family":"Ockerman","given":"D.J.","affiliations":[],"preferred":false,"id":203766,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":30970,"text":"wri984114 - 2001 - Ground-water flow to Death Valley, as inferred from the chemistry and geohydrology of selected springs in Death Valley National Park, California and Nevada","interactions":[],"lastModifiedDate":"2014-04-10T07:46:25","indexId":"wri984114","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"98-4114","title":"Ground-water flow to Death Valley, as inferred from the chemistry and geohydrology of selected springs in Death Valley National Park, California and Nevada","docAbstract":"Death Valley lies downgradient from\nadjacent valleys to the north, south, east, and west\nin California and Nevada, and is the site of\nsubstantial ground-water discharge. The sources\nof the discharging waters have been discussed by\nseveral investigators in the past and are of heightened\nconcern because of the potential disposal of\nhigh-level radioactive waste at Yucca Mountain,\nNevada, and because of ground-water withdrawals\nattendant to commercial mining in the\nnorthwestern Amargosa Valley region. This report\ndescribes high- and low-discharge springs in and\nalong the Amargosa Range that were sampled to\naugment the level of understanding of the extent\nand distribution of westward ground-water flow\nthrough the range.\nThe Black Mountains do not seem to be\npart of a significant path of ground-water flow\nfrom the Amargosa region. This is attributed to\nthe complex lithology and geologic history of the\nBlack Mountains structural block and to the presence\nof the intervening Furnace Creek fault zone.\nThe only ground-water discharge associated with\nthe Black Mountains where water chemistry\nreflects an external source or sources is Saratoga\nSpring, for which &delta;<sup>2</sup>H and &delta;<sup>18</sup>O data indicate\nrecharge in the Spring Mountains to the east.\nThe southern part of the Funeral Mountains\ntransmits a large volume of water through faulted\nand fractured rocks of Cambrian age that lie at or\nalong the distal part of the northeast -oriented\nSpotted Range-Mine Mountain structural zone.\nWaters discharging from springs in the Furnace\nCreek Ranch vicinity (Travertine and Nevares)\nboth compositionally and isotopically resemble\nwaters from the Ash Meadows spring group in the\nAmargosa Desert. The Ash Meadows springs and\nwater in the Amargosa Valley alluvium likely are\nchemically representative of ground water\nentering the southern Funeral Mountains. Much\nless ground water flows through the central and\nnorthern Funeral Mountains than flows through\nthe southern part, as indicated by the geologic\nsetting and chemistry of Keane Wonder Spring.\nThe northern one-half of the mountains comprises\nearly-to-middle Proterozoic metamorphic rocks\nthat are the core of the Funeral Mountains anticlinorium.\nThe core is largely unfaulted, plunges to\nthe northeast and southwest, and is truncated to\nsome extent on the east by the shallow-dipping\nBoundary Canyon fault. This structural setting\nand the paucity of springs in the northern one-half\nof the Funeral Mountains indicate a long traveltime\nfrom the Amargosa region to the western\nmargin of the northern and central parts of the\nmountains.\nThe Grapevine Mountains include the\nhighest elevations in the Amargosa Range.\nSubstantial precipitation and recharge above\nabout 2,000 meters are evinced by numerous\nsmall springs and seeps along the east and west\nmargins. The local nature of the recharge is\nreflected in &delta;<sup>2</sup>H and &delta;<sup>18</sup>O values and in the spring\nchemistries that indicate control by Tertiary\nvolcanic rocks. The highest spring discharges\nassociated with the Grapevine Mountains are near\nthe north end of the mountains in the Grapevine\nRanch area. The springs in this area are similar\nchemically and isotopically, except for one or two\norder-of-magnitude differences in calcium,\nmagnesium, and strontium concentrations and a\n1.2 per mil difference in &delta;<sup>13</sup>C values. These differences\ncan be attributed to differences in the distal\nparts of the respective flow paths. The springs\nalso lie at the end of a northeast -oriented structural\nzone in the Walker Lane Belt, and their &delta;<sup>2</sup>H,\n&delta;<sup>13</sup>C, and &delta;<sup>18</sup>O values indicate a recharge area\nlikely to the northeast, outside of the Grapevine\nMountains.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri984114","collaboration":"Prepared in cooperation with the Nevada Operations Office, U.S. Department of Energy, under Interagency Agreement DE-AI08-97NV12033","usgsCitation":"Steinkampf, W.C., and Werrell, W.L., 2001, Ground-water flow to Death Valley, as inferred from the chemistry and geohydrology of selected springs in Death Valley National Park, California and Nevada: U.S. Geological Survey Water-Resources Investigations Report 98-4114, iv, 37 p., https://doi.org/10.3133/wri984114.","productDescription":"iv, 37 p.","numberOfPages":"42","costCenters":[],"links":[{"id":286090,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1998/4114/report.pdf"},{"id":286091,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1998/4114/report-thumb.jpg"}],"country":"United States","state":"California;Nevada","otherGeospatial":"Death Valley National Park","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117.547222,35.622222 ], [ -117.547222,37.1 ], [ -117.177778,37.1 ], [ -117.177778,35.622222 ], [ -117.547222,35.622222 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aaae4b07f02db668f8f","contributors":{"authors":[{"text":"Steinkampf, William C.","contributorId":11256,"corporation":false,"usgs":true,"family":"Steinkampf","given":"William","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":204483,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Werrell, William L.","contributorId":49007,"corporation":false,"usgs":true,"family":"Werrell","given":"William","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":204484,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":31420,"text":"ofr01250 - 2001 - Hydrogeologic data for the Big River–Mishnock River stream-aquifer system, central Rhode Island","interactions":[],"lastModifiedDate":"2022-01-20T19:11:04.187945","indexId":"ofr01250","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-250","title":"Hydrogeologic data for the Big River–Mishnock River stream-aquifer system, central Rhode Island","docAbstract":"Hydrogeology, ground-water development alternatives, and water quality in the Big\u001FMishnock stream-aquifer system in central Rhode Island are being investigated as part of a long-term cooperative program between the Rhode Island Water Resources Board and the U.S. Geological Survey to evaluate the ground-water resources throughout Rhode Island. The study area includes the Big River drainage basin and that portion of the Mishnock River drainage basin upstream from the Mishnock River at State Route 3. This report presents geologic data and hydrologic and water-quality data for ground and surface water.\r \rGround-water data were collected from July 1996 through September 1998 from a network of observation wells consisting of existing wells and wells installed for this study, which provided a broad distribution of data-collection sites throughout the study area. Streambed piezometers were used to obtain differences in head data between surface-water levels and ground-water levels to help evaluate stream-aquifer interactions throughout the study area. The types of data presented include monthly ground-water levels, average daily ground-water withdrawals, drawdown data from aquifer tests, and water-quality data. Historical water-level data from other wells within the study area also are presented in this report.\r \rSurface-water data were obtained from a network consisting of surface-water impoundments, such as ponds and reservoirs, existing and newly established partial-record stream-discharge sites, and synoptic surface-water-quality sites. Water levels were collected monthly from the surface-water impoundments. Stream-discharge measurements were made at partial-record sites to provide measurements of inflow, outflow, and internal flow throughout the study area. Specific conductance was measured monthly at partial-record sites during the study, and also during the fall and spring of 1997 and 1998 at 41 synoptic sites throughout the study area.\r \rGeneral geologic data, such as estimates of depth to bedrock and depth to water table, as well as indications of underlying geologic structure, were obtained from geophysical surveys. Site-specific geologic data were collected during the drilling of observation wells and test holes. These data include depth to bedrock or refusal, depth to water table, and lithologic information.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01250","usgsCitation":"Craft, P.A., 2001, Hydrogeologic data for the Big River–Mishnock River stream-aquifer system, central Rhode Island: U.S. Geological Survey Open-File Report 2001-250, 104 p., https://doi.org/10.3133/ofr01250.","productDescription":"104 p.","costCenters":[],"links":[{"id":161231,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":394601,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_46474.htm"},{"id":2559,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/ofr01250","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Rhode Island","otherGeospatial":"Big River–Mishnock River stream-aquifer system","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -71.6944,\n              41.5833\n            ],\n            [\n              -71.5439,\n              41.5833\n            ],\n            [\n              -71.5439,\n              41.6958\n            ],\n            [\n              -71.6944,\n              41.6958\n            ],\n            [\n              -71.6944,\n              41.5833\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a50e4b07f02db628afc","contributors":{"authors":[{"text":"Craft, P. A.","contributorId":102105,"corporation":false,"usgs":true,"family":"Craft","given":"P.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":205948,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":30979,"text":"wri014248 - 2001 - Characterization of surface-water quality based on real-time monitoring and regression analysis, Quivira National Wildlife Refuge, south-central Kansas, December 1998 through June 2001","interactions":[],"lastModifiedDate":"2019-05-21T15:42:42","indexId":"wri014248","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2001-4248","displayTitle":"Characterization of Surface-Water Quality Based on Real-Time Monitoring and Regression Analysis, Quivira National Wildlife Refuge, South-Central Kansas, December 1998 Through June 2001","title":"Characterization of surface-water quality based on real-time monitoring and regression analysis, Quivira National Wildlife Refuge, south-central Kansas, December 1998 through June 2001","docAbstract":"<p>Because of the considerable wildlife benefits offered by the Quivira National Wildlife Refuge in south-central Kansas, there is a desire to ensure suitable water quality. To assess the quality of water flowing from Rattlesnake Creek into the refuge, the U.S. Geological Survey collected periodic water samples from December 1998 through June 2001 and analyzed the samples for physical properties, dissolved solids, total suspended solids, suspended sediment, major ions, nutrients, metals, pesticides, and indicator bacteria. Concentrations of 10 of the 125 chemicals analyzed did not meet water-quality criteria to protect aquatic life and drinking water in a least one sample. These were pH, turbidity, dissolved oxygen, dissolved solids, sodium, chloride, phosphorus, total coliform bacteria, E. coli bacteria, and fecal coliform bacteria. No metal or pesticide concentrations exceeded water-quality criteria. Twenty-two of the 43 metals analyzed were not detected, and 36 of the 46 pesticides analyzed were not detected. </p><p>Because dissolved solids, sodium, chloride, fecal coliform bacteria, and other chemicals that are a concern for the health and habitat of fish and wildlife at the refuge cannot be measured continuously, regression equations were developed from a comparison of the analytical results of periodic samples and in-stream monitor measurements of specific conductance, pH, water temperature, turbidity, and dissolved oxygen. A continuous record of estimated chemical concentrations was developed from continuously recorded in-stream measurements. </p><p>Annual variation in water quality was evaluated by comparing 1999 and 2000 sample data- the 2 years for which complete data sets were available. Median concentrations of alkalinity, fluoride, nitrate, and fecal coliform bacteria were smaller or did not change from 1999 to 2000. Dissolved solids, total suspended solids, sodium, chloride, sulfate, total organic nitrogen, and total phosphorus had increases in median concentrations from 1999 to 2000. Increases in the median concentrations of the major ions were expected due to decreased rainfall in 2000 and very low streamflow late in the year. Increases for solids and nutrients may have been due to the unusually high streamflow in the early spring of 2000. This was the time of year when fields were tilled, exposing solids and nutrients that were transported with runoff to Rattlesnake Creek. </p><p>Load estimates indicate the chemical mass transported into the refuge and can be used in the development of total maximum daily loads (as specified by the U.S. Environmental Protection Agency) for water-quality contaminants in Rattlesnake Creek. Load estimates also were used to evaluate seasonal variation in water quality. Seasonal variation was most pronounced in the estimates of nutrient loads, and most of the nutrient load transported to the refuge occurred during just a few periods of surface runoff in the spring and summer. This information may be used by resource managers to determine when water-diversion strategies would be most beneficial. Load estimates also were used to calculate yields, which are useful for site comparisons. </p><p>The continuous and real-time nature of the record of estimated concentrations, loads, and yields may be important for resource managers, recreationalists, or others for evaluating water-diversion strategies, making water-use decisions, or assessing the environmental effects of chemicals in time to prevent adverse effects on fish or other aquatic life at the refuge.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wri014248","collaboration":"Prepared in cooperation with the U.S. Fish and Wildlife Service","usgsCitation":"Christensen, V.G., 2001, Characterization of surface-water quality based on real-time monitoring and regression analysis, Quivira National Wildlife Refuge, south-central Kansas, December 1998 through June 2001: U.S. Geological Survey Water-Resources Investigations Report 2001-4248, iv, 28 p. , https://doi.org/10.3133/wri014248.","productDescription":"iv, 28 p. ","numberOfPages":"33","costCenters":[{"id":353,"text":"Kansas Water Science Center","active":false,"usgs":true}],"links":[{"id":360178,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/2001/4248/wrir20014248.pdf","text":"Report","size":"463 kB","linkFileType":{"id":1,"text":"pdf"},"description":"WRIR 2001–4248"},{"id":360177,"rank":2,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/2001/4248/coverthb.jpg"}],"country":"United States","state":"Kansas","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -98.63491058349608,\n              38.059986139487975\n            ],\n            [\n              -98.44985961914062,\n              38.059986139487975\n            ],\n            [\n              -98.44985961914062,\n              38.211209018340156\n            ],\n            [\n              -98.63491058349608,\n              38.211209018340156\n            ],\n            [\n              -98.63491058349608,\n              38.059986139487975\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","contact":"<p><a href=\"mailto:%20dc_ks@usgs.gov\" data-mce-href=\"mailto:%20dc_ks@usgs.gov\">Director</a>, <a href=\"https://www.usgs.gov/centers/kswsc\" data-mce-href=\"https://www.usgs.gov/centers/kswsc\">Kansas Water Science Center</a><br>U.S. Geological Survey<br>1217 Biltmore Drive<br>Lawrence, KS 66049</p>","tableOfContents":"<ul><li>Abstract</li><li>Introduction</li><li>Methods</li><li>Chemical Concentrations, Loads, Yields, and Variability</li><li>Summary</li><li>References Cited</li></ul>","publishingServiceCenter":{"id":4,"text":"Rolla PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e2e4b07f02db5e4d25","contributors":{"authors":[{"text":"Christensen, Victoria G. 0000-0003-4166-7461 vglenn@usgs.gov","orcid":"https://orcid.org/0000-0003-4166-7461","contributorId":2354,"corporation":false,"usgs":true,"family":"Christensen","given":"Victoria","email":"vglenn@usgs.gov","middleInitial":"G.","affiliations":[{"id":37947,"text":"Upper Midwest Water Science Center","active":true,"usgs":true}],"preferred":true,"id":204511,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":30972,"text":"wri014137 - 2001 - Geohydrology and limnology of Walden Pond, Concord, Massachusetts","interactions":[],"lastModifiedDate":"2012-02-02T00:09:00","indexId":"wri014137","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2001-4137","title":"Geohydrology and limnology of Walden Pond, Concord, Massachusetts","docAbstract":"The trophic ecology and ground-water contributing area of Walden Pond, in Concord and Lincoln, Mass., were investigated by the U.S. Geological Survey in cooperation with the Massachusetts Department of Environmental Management from April 1997 to July 2000. Bathymetric investigation indicated that Walden Pond (24.88 hectares), a glacial kettle-hole lake with no surface inlet or outlet, has three deep areas. The maximum depth (30.5 meters) essentially was unchanged from measurements made by Henry David Thoreau in 1846. The groundwater contributing area (621,000 square meters) to Walden Pond was determined from water-table contours in areas of stratified glacial deposits and from land-surface contours in areas of bedrock highs. Walden Pond is a flow-through lake: Walden Pond gains water from the aquifer along its eastern perimeter and loses water to the aquifer along its western perimeter. Walden Pond contributing area also includes Goose Pond and its contributing area. A water budget calculated for Walden Pond, expressed as depth of water over the lake surface, indicated that 45 percent of the inflow to the lake was from precipitation (1.215 meters per year) and 55 percent from ground water (1.47 meters per year). The groundwater inflow estimate was based on the average of two different approaches including an isotope mass-balance approach. Evaporation accounted for 26 percent of the outflow from the lake (0.71 meters per year) whereas lake-water seepage to the groundwater system contributed 74 percent of the outflow (1.97 meters per year). The water-residence time of Walden Pond is approximately 5 years. Potential point sources of nutrients to ground water, the Concord municipal landfill and a trailer park, were determined to be outside the Walden Pond groundwater contributing area. A third source, the septic leach field for the Walden Pond State Reservation facilities, was within the groundwater contributing area. Nutrient budgets for the lake indicated that nitrogen inputs (858 kilograms per year) were dominated (30 percent) by plume water from the septic leach field and, possibly, by swimmers (34 percent). Phosphorus inputs (32 kilograms per year) were dominated by atmospheric dry deposition, background ground water, and estimated swimmer inputs. Swimmer inputs may represent more than 50 percent of the phosphorus load during the summer. The septic-system plume did not contribute phosphorus, but increased the nitrogen to phosphorus ratio for inputs from 41 to 59, on an atom-to-atom basis. The ratio of nitrogen to phosphorus in input loads and within the lake indicated algal growth would be strongly phosphorus limited. Nitrogen supply in excess of plant requirements may mitigate against nitrogen fixing organisms including undesirable blooms of cyanobacteria. Based on areal nutrient loading, Walden Pond is a mesotrophic lake. Hypolimnetic oxygen demand of Walden Pond has increased since a profile was measured in 1939. Currently (1999), the entire hypolimnion of Walden Pond becomes devoid of dissolved oxygen before fall turnover in late November; whereas historical data indicated dissolved oxygen likely remained in the hypolimnion during 1939. The complete depletion of dissolved oxygen likely causes release of phosphorus from the sediments. Walden Pond contains a large population of the deep-growing benthic macro alga Nitella, which has been hypothesized to promote water clarity in other clear-water lakes by sequestering nutrients and keeping large areas of the sediment surface oxygenated. Loss of Nitella populations in other lakes has correlated with a decline in water quality. Although the Nitella standing crop is large in Walden Pond, Nitella still appears to be controlled by nutrient availability. Decreasing phosphorus inputs to Walden Pond, by amounts under anthropogenic control would likely contribute to the stability of the Nitella population in the metalimnion, may reverse oxygen depletion in the hypolimnion, and decreas","language":"ENGLISH","doi":"10.3133/wri014137","usgsCitation":"Colman, J.A., and Friesz, P.J., 2001, Geohydrology and limnology of Walden Pond, Concord, Massachusetts: U.S. Geological Survey Water-Resources Investigations Report 2001-4137, 61 p. , https://doi.org/10.3133/wri014137.","productDescription":"61 p. ","costCenters":[],"links":[{"id":2951,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri014137","linkFileType":{"id":5,"text":"html"}},{"id":159973,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1be4b07f02db6a8cfc","contributors":{"authors":[{"text":"Colman, John A. 0000-0001-9327-0779 jacolman@usgs.gov","orcid":"https://orcid.org/0000-0001-9327-0779","contributorId":2098,"corporation":false,"usgs":true,"family":"Colman","given":"John","email":"jacolman@usgs.gov","middleInitial":"A.","affiliations":[{"id":376,"text":"Massachusetts Water Science Center","active":true,"usgs":true},{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":true,"id":204489,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Friesz, Paul J. 0000-0002-4660-2336 pfriesz@usgs.gov","orcid":"https://orcid.org/0000-0002-4660-2336","contributorId":1075,"corporation":false,"usgs":true,"family":"Friesz","given":"Paul","email":"pfriesz@usgs.gov","middleInitial":"J.","affiliations":[{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":true,"id":204488,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":61474,"text":"mf2385 - 2001 - Map and map database of susceptibility to slope failure by sliding and earthflow in the Oakland area, California","interactions":[],"lastModifiedDate":"2012-02-10T00:10:31","indexId":"mf2385","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2385","title":"Map and map database of susceptibility to slope failure by sliding and earthflow in the Oakland area, California","docAbstract":"     Map data that predict the varying likelihood of landsliding can help public agencies make informed decisions on land use and zoning. This map, prepared in a geographic information system from a statistical model, estimates the relative likelihood of local slopes to fail by two processes common to an area of diverse geology, terrain, and land use centered on metropolitan Oakland. The model combines the following spatial data: (1) 120 bedrock and surficial geologic-map units, (2) ground slope calculated from a 30-m digital elevation model, (3) an inventory of 6,714 old landslide deposits (not distinguished by age or type of movement and excluding debris flows), and (4) the locations of 1,192 post-1970 landslides that damaged the built environment. The resulting index of likelihood, or susceptibility, plotted as a 1:50,000-scale map, is computed as a continuous variable over a large area (872 km2) at a comparatively fine (30 m) resolution. This new model complements landslide inventories by estimating susceptibility between existing landslide deposits, and improves upon prior susceptibility maps by quantifying the degree of susceptibility within those deposits.\r\n     Susceptibility is defined for each geologic-map unit as the spatial frequency (areal percentage) of terrain occupied by old landslide deposits, adjusted locally by steepness of the topography. Susceptibility of terrain between the old landslide deposits is read directly from a slope histogram for each geologic-map unit, as the percentage (0.00 to 0.90) of 30-m cells in each one-degree slope interval that coincides with the deposits. Susceptibility within landslide deposits (0.00 to 1.33) is this same percentage raised by a multiplier (1.33) derived from the comparative frequency of recent failures within and outside the old deposits. Positive results from two evaluations of the model encourage its extension to the 10-county San Francisco Bay region and elsewhere. A similar map could be prepared for any area where the three basic constituents, a geologic map, a landslide inventory, and a slope map, are available in digital form. Added predictive power of the new susceptibility model may reside in attributes that remain to be explored?among them seismic shaking, distance to nearest road, and terrain elevation, aspect, relief, and curvature.","language":"ENGLISH","doi":"10.3133/mf2385","usgsCitation":"Pike, R., Graymer, R., Roberts, S., Kalman, N., and Sobieszczyk, S., 2001, Map and map database of susceptibility to slope failure by sliding and earthflow in the Oakland area, California (Online version 1.1): U.S. Geological Survey Miscellaneous Field Studies Map 2385, 37 p. and 1 sheet, https://doi.org/10.3133/mf2385.","productDescription":"37 p. and 1 sheet","costCenters":[],"links":[{"id":110284,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_49791.htm","linkFileType":{"id":5,"text":"html"},"description":"49791"},{"id":180435,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6044,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2002/2385/","linkFileType":{"id":5,"text":"html"}}],"scale":"50000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.36749999999999,37.6175 ], [ -122.36749999999999,38 ], [ -122,38 ], [ -122,37.6175 ], [ -122.36749999999999,37.6175 ] ] ] } } ] }","edition":"Online version 1.1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a8fe4b07f02db65545d","contributors":{"authors":[{"text":"Pike, R.J.","contributorId":72814,"corporation":false,"usgs":true,"family":"Pike","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":265742,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Graymer, R. W.","contributorId":21174,"corporation":false,"usgs":true,"family":"Graymer","given":"R. W.","affiliations":[],"preferred":false,"id":265740,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Roberts, Sebastian","contributorId":52209,"corporation":false,"usgs":true,"family":"Roberts","given":"Sebastian","email":"","affiliations":[],"preferred":false,"id":265741,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kalman, N.B.","contributorId":8171,"corporation":false,"usgs":true,"family":"Kalman","given":"N.B.","email":"","affiliations":[],"preferred":false,"id":265739,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sobieszczyk, Steven 0000-0002-0834-8437 ssobie@usgs.gov","orcid":"https://orcid.org/0000-0002-0834-8437","contributorId":885,"corporation":false,"usgs":true,"family":"Sobieszczyk","given":"Steven","email":"ssobie@usgs.gov","affiliations":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"preferred":true,"id":265738,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":61467,"text":"mf2356 - 2001 - Geologic map of the Jasper Quadrangle, Newton and Boone counties, Arkansas","interactions":[],"lastModifiedDate":"2017-03-02T16:03:06","indexId":"mf2356","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2356","title":"Geologic map of the Jasper Quadrangle, Newton and Boone counties, Arkansas","docAbstract":"This digital geologic map compilation presents new polygon (i.e., geologic map unit contacts), line (i.e., fault, fold axis, and structure contour), and point (i.e., structural attitude, contact elevations) vector data for the Jasper 7 1/2' quadrangle in northern Arkansas.  The map database, which is at 1:24,000-scale resolution, provides geologic coverage of an area of current hydrogeologic, tectonic, and stratigraphic interest.  The Jasper quadrangle is located in northern Newton and southern Boone Counties about 20 km south of the town of Harrison.  The map area is underlain by sedimentary rocks of Ordovician, Mississippian, and Pennsylvanian age that were mildly deformed by a series of normal and strike-slip faults and folds.  The area is representative of the stratigraphic and structural setting of the southern Ozark Dome.  The Jasper quadrangle map provides new geologic information for better understanding groundwater flow paths in and adjacent to the Buffalo River watershed.","language":"English","doi":"10.3133/mf2356","usgsCitation":"Hudson, M., Murray, K., and Pezzutti, D., 2001, Geologic map of the Jasper Quadrangle, Newton and Boone counties, Arkansas: U.S. Geological Survey Miscellaneous Field Studies Map 2356, 1 sheet, https://doi.org/10.3133/mf2356.","productDescription":"1 sheet","costCenters":[],"links":[{"id":182686,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6038,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2001/mf-2356/","linkFileType":{"id":5,"text":"html"}},{"id":110215,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_43710.htm","linkFileType":{"id":5,"text":"html"},"description":"43710"}],"scale":"24000","country":"United States","state":"Arkansas","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -93.11749999999999,36 ], [ -93.11749999999999,36.1175 ], [ 0,36.1175 ], [ 0,36 ], [ -93.11749999999999,36 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afde4b07f02db696f12","contributors":{"authors":[{"text":"Hudson, M.R.","contributorId":68317,"corporation":false,"usgs":true,"family":"Hudson","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":265709,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Murray, K.E.","contributorId":68595,"corporation":false,"usgs":true,"family":"Murray","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":265710,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pezzutti, Deborah","contributorId":94545,"corporation":false,"usgs":true,"family":"Pezzutti","given":"Deborah","email":"","affiliations":[],"preferred":false,"id":265711,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70038036,"text":"70038036 - 2001 - U.S. Geological Survey Activities Related to American Indians and Alaska Natives  Fiscal Year 2001","interactions":[],"lastModifiedDate":"2018-12-04T10:00:20","indexId":"70038036","displayToPublicDate":"2002-01-01T09:52:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"U.S. Geological Survey Activities Related to American Indians and Alaska Natives  Fiscal Year 2001","docAbstract":"<p>Information is a resource that can help Native American governments and their people. The U.S. Geological Survey (USGS) makes available technical expertise, reports, and other impartial information sources that can benefit Native Americans interested in subsistence issues, water, land use, and the health of many parts of the environment.</p><p>The USGS works in cooperation with American Indian and Alaska Native governments, conducting research on water and mineral resources, animals and plants of environmental, economic, or subsistence importance, natural hazards, and geologic resources. Digital data on cartography, mineral resources, stream flow, biota, and other topics are available to American Indian and Alaska Native individuals and institutions. The USGS recognizes the need to learn from and share knowledge with Native peoples. This report describes most of the activities that the USGS conducted with American Indian and Alaska Native governments, educational institutions, and individuals during Federal fiscal year 2001. Some of these USGS activities were carried out in concert with the Bureau of Indian Affairs (BIA). Others were conducted by Tribes and the USGS.</p><p>In 2001, the USGS began examining its activities related to American Indians and Alaska Natives to determine how it can better serve these customers within its mandates. A growing number of Tribal governments, educational institutions, and other Tribal organizations have begun using geographic information systems and other digital technologies in recent years. As Tribes become more interested in and more adept at managing digital information, they are seeking relevant data from the USGS more frequently. Using digital technologies provides Tribal governments with additional means of managing lands and resources for the benefit of current and future generations. The USGS recognizes the need to make its information available to Tribal governments, and to work with those governments and other institutions to advance data management capabilities.</p><p>The USGS is responding to this need by increasing the transfer of scientific information to American Indian and Alaska Native governments and by training employees of those governments to conduct and improve scientific studies. The USGS is also encouraging American Indians and Alaska Natives to pursue careers in science, and seeking ways to hire Indian and Native students. By identifying, improving, and disseminating information about available hiring mechanisms, the USGS is working to make hiring such students easier, and therefore more likely, for USGS managers.</p><p>The U.S. Geological Survey is the Federal science bureau within the Department of the Interior (DoI). The USGS is non-regulatory and is not a significant manager of Federal or Trust lands or assets. However, there are two types of USGS activities that do involve American Indians, Alaska Natives, and their lands.</p><p>The first type of activity is the course of formal studies, conducted through existing USGS programs, that involves collection of specific types of data as well as investigative and research projects. These projects typically last 2 or 3 years, although a few are parts of longer-term activities. Some projects are funded through cooperative agreements, from monies provided to the USGS by individual Tribal governments or by the BIA. The USGS provides matching funds for cooperative projects. These formal projects may also receive funding from the U.S. Environmental Protection Agency, the Indian Health Service (part of the Department of Health and Human Services), or other Federal agencies. The USGS routinely works with its sister bureaus in the Department of the Interior to provide the scientific information and expertise needed to meet the Department's science priorities. Within this context, the USGS and the BIA are cooperating to use USGS information resources to benefit American Indian and Alaska Native peoples and their lands.</p><p>The second type of USGS activity is less formal, based on initiatives designed and conducted by USGS employees. Frequently involving educational activities, these endeavors are prompted by employee interests, often as collateral issues, that result from one or more USGS employees identifying and responding to an observed need. In these activities, USGS employees help fulfill a mission of the USGS-to make science relevant-while helping their fellow citizens. USGS employees have also taken the initiative in assisting American Indians and Alaska Natives through participation in several organizations that were created to foster awareness of science among Native peoples and to help build support and communication networks. One such group is the American Indian Science and Engineering Society (AISES). This group sponsors an annual national meeting in which USGS employees participate. USGS employees join this organization on a voluntary basis, bringing the benefits of this expanded network to the USGS, as many employees do with other professional organizations.</p><p>Each part of the USGS has identified an American Indian/Alaska Native liaison. Furthermore, the USGS has instituted a regional organizational structure, with Western, Central, and Eastern Regions. The regions work in concert with specific scientific disciplines to conduct the scientific mission of the USGS. The regional structure is intended to bring us closer to our customers; we hope that Native Americans and Alaska Natives will use the contacts listed at the end of this report.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/70038036","usgsCitation":"Water Resources Division, U.S. Geological Survey, 2001, U.S. Geological Survey Activities Related to American Indians and Alaska Natives  Fiscal Year 2001, xiii, 55 p., https://doi.org/10.3133/70038036.","productDescription":"xiii, 55 p.","costCenters":[],"links":[{"id":254501,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/unnumbered/70038036/report-thumb.jpg"},{"id":359901,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/unnumbered/70038036/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bba51e4b08c986b3280de","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":535179,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
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