{"pageNumber":"106","pageRowStart":"2625","pageSize":"25","recordCount":6233,"records":[{"id":79717,"text":"sir20065213 - 2007 - A Precipitation-Runoff Model for the Blackstone River Basin, Massachusetts and Rhode Island","interactions":[],"lastModifiedDate":"2012-03-08T17:16:22","indexId":"sir20065213","displayToPublicDate":"2007-03-24T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2006-5213","title":"A Precipitation-Runoff Model for the Blackstone River Basin, Massachusetts and Rhode Island","docAbstract":"A Hydrological Simulation Program-FORTRAN (HSPF) precipitation-runoff model of the Blackstone River Basin was developed and calibrated to study the effects of changing land- and water-use patterns on water resources. The 474.5 mi2 Blackstone River Basin in southeastern Massachusetts and northern Rhode Island is experiencing rapid population and commercial growth throughout much of its area. This growth and the corresponding changes in land-use patterns are increasing stress on water resources and raising concerns about the future availability of water to meet residential and commercial needs. Increased withdrawals and wastewater-return flows also could adversely affect aquatic habitat, water quality, and the recreational value of the streams in the basin. \r\n\r\nThe Blackstone River Basin was represented by 19 hydrologic response units (HRUs): 17 types of pervious areas (PERLNDs) established from combinations of surficial geology, land-use categories, and the distribution of public water and public sewer systems, and two types of impervious areas (IMPLNDs). Wetlands were combined with open water and simulated as stream reaches that receive runoff from surrounding pervious and impervious areas. This approach was taken to achieve greater flexibility in calibrating evapotranspiration losses from wetlands during the growing season. The basin was segmented into 50 reaches (RCHRES) to represent junctions at tributaries, major lakes and reservoirs, and drainage areas to streamflow-gaging stations. Climatological, streamflow, water-withdrawal, and wastewater-return data were collected during the study to develop the HSPF model. Climatological data collected at Worcester Regional Airport in Worcester, Massachusetts and T.F. Green Airport in Warwick, Rhode Island, were used for model calibration. A total of 15 streamflow-gaging stations were used in the calibration. Streamflow was measured at eight continuous-record streamflow-gaging stations that are part of the U.S. Geological Survey cooperative streamflow-gaging network, and at seven partial-record stations installed in 2004 for this study. Because the model-calibration period preceded data collection at the partial-record stations, a continuous streamflow record was estimated at these stations by correlation with flows at nearby continuous-record stations to provide additional streamflow data for model calibration. Water-use information was compiled for 1996-2001 and included municipal and commercial/industrial withdrawals, private residential withdrawals, golf-course withdrawals, municipal wastewater-return flows, and on-site septic effluent return flows. Streamflow depletion was computed for all time-varying ground-water withdrawals prior to simulation. Water-use data were included in the model to represent the net effect of water use on simulated hydrographs. Consequently, the calibrated values of the hydrologic parameters better represent the hydrologic response of the basin to precipitation. \r\n\r\nThe model was calibrated for 1997-2001 to coincide with the land-use and water-use data compiled for the study. Four long-term stations (Nipmuc River near Harrisville, Rhode Island; Quinsigamond River at North Grafton, Massachusetts; Branch River at Forestdale, Rhode Island; and Blackstone River at Woonsocket, Rhode Island) that monitor flow at 3.3, 5.4, 19, and 88 percent of the total basin area, respectively, provided the primary model-calibration points. Hydrographs, scatter plots, and flow-duration curves of observed and simulated discharges, along with various model-fit statistics, indicated that the model performed well over a range of hydrologic conditions. For example, the total runoff volume for the calibration period simulated at the Nipmuc River near Harrisville, Rhode Island; Quinsigamond River at North Grafton, Massachusetts; Branch River at Forestdale, Rhode Island; and Blackstone River at Woonsocket, Rhode Island streamflow-gaging stations differed from the observed runoff v","language":"ENGLISH","doi":"10.3133/sir20065213","collaboration":"Prepared in cooperation with the Rhode Island Water Resources Board","usgsCitation":"Barbaro, J.R., and Zarriello, P.J., 2007, A Precipitation-Runoff Model for the Blackstone River Basin, Massachusetts and Rhode Island: U.S. Geological Survey Scientific Investigations Report 2006-5213, x, 71 p., https://doi.org/10.3133/sir20065213.","productDescription":"x, 71 p.","costCenters":[{"id":377,"text":"Massachusetts-Rhode Island Water Science Center","active":false,"usgs":true}],"links":[{"id":190876,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9373,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2006/5213/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd4963e4b0b290850ef1e1","contributors":{"authors":[{"text":"Barbaro, Jeffrey R. 0000-0002-6107-2142 jrbarbar@usgs.gov","orcid":"https://orcid.org/0000-0002-6107-2142","contributorId":1626,"corporation":false,"usgs":true,"family":"Barbaro","given":"Jeffrey","email":"jrbarbar@usgs.gov","middleInitial":"R.","affiliations":[{"id":466,"text":"New England Water Science Center","active":true,"usgs":true},{"id":376,"text":"Massachusetts Water Science Center","active":true,"usgs":true}],"preferred":true,"id":290645,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zarriello, Phillip J. 0000-0001-9598-9904 pzarriel@usgs.gov","orcid":"https://orcid.org/0000-0001-9598-9904","contributorId":1868,"corporation":false,"usgs":true,"family":"Zarriello","given":"Phillip","email":"pzarriel@usgs.gov","middleInitial":"J.","affiliations":[{"id":376,"text":"Massachusetts Water Science Center","active":true,"usgs":true}],"preferred":true,"id":290646,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":79714,"text":"ofr20071035 - 2007 - Hydrologic Data Summary for the Northeast Creek/Fresh Meadow Estuary, Acadia National Park, Maine, 2000-2001","interactions":[],"lastModifiedDate":"2012-03-08T17:16:20","indexId":"ofr20071035","displayToPublicDate":"2007-03-24T00:00:00","publicationYear":"2007","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":"2007-1035","title":"Hydrologic Data Summary for the Northeast Creek/Fresh Meadow Estuary, Acadia National Park, Maine, 2000-2001","docAbstract":"The U.S. Geological Survey, in cooperation with the National Park Service, collected data in Northeast Creek estuary, Mt. Desert Island, Maine, to establish baseline water-quality conditions including estuarine nutrient concentrations. Five sampling sites in Northeast Creek were established and monitored continuously for temperature and specific conductance during May to November, 2000 and 2001. Stream stage, which was affected by ocean tidal dynamics, was recorded at the most downstream site and at one upstream site. Discrete water samples for nutrient concentrations were collected biweekly during May to November, 2000 and 2001, at the five sampling sites, and an additional site seaward of the estuary mouth. Results indicated that the salinity regime of Northeast Creek estuary is dynamic and highly regulated by strong seasonal variations in freshwater runoff, as well as limited seawater exchange caused by a constriction at the bridge, at the downstream end of the estuary. Oligohaline conditions (0.5-5 practical salinity units) occasionally extend to the estuary mouth. During other periods oligohaline and mesohaline (5-20 practical salinity units) conditions exist in some areas of the estuary; polyhaline/marine (20-35 practical salinity units) conditions occasionally exist near the mouth. A saltwater wedge in the bottom water, due to density stratification, was observed to migrate upstream as fresh surface-water inputs diminished during the onset of summer low-flow conditions. Although specific conductance ranged widely at most sites because of tidal influences, other water-quality constituents, including nutrient and chlorophyll-a concentrations, exhibited seasonal distribution patterns in which maximum levels generally occurred in early to mid-summer and again in the fall over both field seasons.","language":"ENGLISH","doi":"10.3133/ofr20071035","collaboration":"Prepared in cooperation with the National Park Service","usgsCitation":"Caldwell, J.M., and Culbertson, C.W., 2007, Hydrologic Data Summary for the Northeast Creek/Fresh Meadow Estuary, Acadia National Park, Maine, 2000-2001: U.S. Geological Survey Open-File Report 2007-1035, iv, 81 p., https://doi.org/10.3133/ofr20071035.","productDescription":"iv, 81 p.","onlineOnly":"Y","temporalStart":"2000-01-01","temporalEnd":"2001-12-31","costCenters":[{"id":371,"text":"Maine Water Science Center","active":true,"usgs":true}],"links":[{"id":192046,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9370,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1035/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a2de4b07f02db614356","contributors":{"authors":[{"text":"Caldwell, James M. 0000-0001-5880-443X jmcald@usgs.gov","orcid":"https://orcid.org/0000-0001-5880-443X","contributorId":1882,"corporation":false,"usgs":true,"family":"Caldwell","given":"James","email":"jmcald@usgs.gov","middleInitial":"M.","affiliations":[{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":true,"id":290635,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Culbertson, Charles W. cculbert@usgs.gov","contributorId":1607,"corporation":false,"usgs":true,"family":"Culbertson","given":"Charles","email":"cculbert@usgs.gov","middleInitial":"W.","affiliations":[{"id":371,"text":"Maine Water Science Center","active":true,"usgs":true}],"preferred":true,"id":290634,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":79695,"text":"ds246 - 2007 - Flow Velocity and Sediment Data Collected During 1990 and 1991 at National Canyon, Colorado River, Arizona","interactions":[],"lastModifiedDate":"2012-02-10T00:11:41","indexId":"ds246","displayToPublicDate":"2007-03-15T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":310,"text":"Data Series","code":"DS","onlineIssn":"2327-638X","printIssn":"2327-0271","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"246","title":"Flow Velocity and Sediment Data Collected During 1990 and 1991 at National Canyon, Colorado River, Arizona","docAbstract":"During 1990 and 1991, a series of research flows were released from Glen Canyon Dam. Data collected at the streamflow-gaging station on the Colorado River above National Canyon near Supai from that period have been compiled and entered into the U.S. Geological Survey database. The data consist of measurements of suspended-sediment concentration and sand sizes in suspension, sand sizes of streambed sediment, and velocity of the Colorado River above National Canyon near Supai streamflow-gaging site. Velocity and sediment data are available upon request from the Arizona Water Science Center and from the U.S. Geological Survey water-quality database (http://waterdata.usgs.gov/az/nwis/qw).","language":"ENGLISH","doi":"10.3133/ds246","collaboration":"Prepared in cooperation with the Grand Canyon Monitoring and Research Center","usgsCitation":"Hornewer, N.J., and Wiele, S.M., 2007, Flow Velocity and Sediment Data Collected During 1990 and 1991 at National Canyon, Colorado River, Arizona (Version 1.0): U.S. Geological Survey Data Series 246, iv, 10 p., https://doi.org/10.3133/ds246.","productDescription":"iv, 10 p.","onlineOnly":"Y","costCenters":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"links":[{"id":191003,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9331,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/ds/2007/246/","linkFileType":{"id":5,"text":"html"}}],"geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -113,36 ], [ -113,36.5 ], [ -112.5,36.5 ], [ -112.5,36 ], [ -113,36 ] ] ] } } ] }","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49d8e4b07f02db5df619","contributors":{"authors":[{"text":"Hornewer, Nancy J. njhornew@usgs.gov","contributorId":910,"corporation":false,"usgs":true,"family":"Hornewer","given":"Nancy","email":"njhornew@usgs.gov","middleInitial":"J.","affiliations":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"preferred":true,"id":290591,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wiele, Stephen M. smwiele@usgs.gov","contributorId":2199,"corporation":false,"usgs":true,"family":"Wiele","given":"Stephen","email":"smwiele@usgs.gov","middleInitial":"M.","affiliations":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"preferred":true,"id":290592,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":79694,"text":"ofr20071033 - 2007 - Methods used to compute low-flow frequency characteristics for continuous-record streamflow stations in Minnesota, 2006","interactions":[],"lastModifiedDate":"2016-04-01T14:03:24","indexId":"ofr20071033","displayToPublicDate":"2007-03-15T00:00:00","publicationYear":"2007","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":"2007-1033","title":"Methods used to compute low-flow frequency characteristics for continuous-record streamflow stations in Minnesota, 2006","docAbstract":"<p>The 1-, 7-, and 30-day low-flow series were determined for 120 continuous-record streamflow stations in Minnesota having at least 20 years of continuous record. The 2-, 5-, 10-, 50-, and 100-year statistics were determined for each series by fitting a log Pearson type III distribution to the data. The methods used to determine the low-flow statistics and to construct the plots of the low-flow frequency curves are described. The low-flow series and the low-flow statistics are presented in tables and graphs.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071033","collaboration":"In cooperation with the Minnesota Pollution Control Agency","usgsCitation":"Winterstein, T.A., Arntson, A.D., and Mitton, G.B., 2007, Methods used to compute low-flow frequency characteristics for continuous-record streamflow stations in Minnesota, 2006: U.S. Geological Survey Open-File Report 2007-1033, Report: iv, 17 p.; Appendices 1-3: 745 p., https://doi.org/10.3133/ofr20071033.","productDescription":"Report: iv, 17 p.; Appendices 1-3: 745 p.","onlineOnly":"Y","additionalOnlineFiles":"Y","temporalStart":"2004-04-01","temporalEnd":"2005-03-31","costCenters":[{"id":392,"text":"Minnesota Water Science 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,{"id":79691,"text":"ofr20061385 - 2007 - Ohio Aquatic Gap Analysis-An Assessment of the Biodiversity and Conservation Status of Native Aquatic Animal Species","interactions":[],"lastModifiedDate":"2012-03-08T17:16:24","indexId":"ofr20061385","displayToPublicDate":"2007-03-13T00:00:00","publicationYear":"2007","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":"2006-1385","title":"Ohio Aquatic Gap Analysis-An Assessment of the Biodiversity and Conservation Status of Native Aquatic Animal Species","docAbstract":"The goal of the GAP Analysis Program is to keep common species common by identifying those species and habitats that are not yet adequately represented in the existing matrix of conservation lands. The Gap Analysis Program (GAP) is sponsored by the Biological Resources Discipline of the U.S. Geological Survey (USGS). The Ohio Aquatic GAP (OH-GAP) is a pilot project that is applying the GAP concept to aquatic-specifically, riverine-data. The mission of GAP is to provide regional assessments of the conservation status of native animal species and to facilitate the application of this information to land-management activities. OH-GAP accomplished this through\r\n* mapping aquatic habitat types, \r\n* mapping the predicted distributions of fish, crayfish, and bivalves, \r\n* documenting the presence of aquatic species in areas managed for conservation, \r\n* providing GAP results to the public, planners, managers, policy makers, and researchers, and \r\n* building cooperation with multiple organizations to apply GAP results to state and regional management activities.\r\n\r\nGap analysis is a coarse-scale assessment of aquatic biodiversity and conservation; the goal is to identify gaps in the conservation of native aquatic species. It is not a substitute for biological field studies and monitoring programs. Gap analysis was conducted for the continuously flowing streams in Ohio. Lakes, reservoirs, wetlands, and the Lake Erie islands were not included in this analysis. The streams in Ohio are in the Lake Erie and Ohio River watersheds and pass through six of the level III ecoregions defined by Omernik: the Eastern Corn Belt Plains, Southern Michigan/Northern Indiana Drift Plains, Huron/Erie Lake Plain, Erie Drift Plains, Interior Plateau, and the Western Allegheny Plateau.\r\n\r\nTo characterize the aquatic habitats available to Ohio fish, crayfish, and bivalves, a classification system needed to be developed and mapped. The process of classification includes delineation of areas of relative homogeneity and labeling these areas using categories defined by the classification system. The variables were linked to the 1:100,000-scale streams of the National Hydrography Dataset of the USGS. Through discussions with Ohio aquatic experts, OH-GAP identified eight separate enduring physical features which, when combined, form the physical habitat type: \r\n* Shreve link (a measure of stream size) \r\n* Downstream Shreve link (a measure of stream connectivity and size) \r\n* Sinuosity \r\n* Gradient \r\n* Bedrock \r\n* Stream temperature \r\n* Character of glacial drift \r\n* Glacial-drift thickness \r\n\r\nPotential distribution models were developed for 130 fish, 70 bivalve, and 17 native crayfish species. These models are based on 5,686 fish, 4,469 crayfish, and 2,899 freshwater bivalve (mussels and clams) sampling locations, the variables describing the physical habitat types, and variables indicating the major drainage basins and Omernik's Level III ecoregion. All potential species distributions are displayed and analyzed at the 14-digit hydrologic unit (14-HUs), or subwatershed, level. Mainland Ohio contains 1,749 14-HUs. All statistics and conclusions, as well as spatial data, are discussed and presented in terms of these units.\r\n\r\nThe Ohio Aquatic Gap Analysis Project compiled a map of public and private conservation lands and OH-GAP classified the lands into four status categories (status 1 through status 4) by the degree of protection offered based on management practices. A status of 1 denotes the highest, most permanent level of maintenance, and status 4 represents the lowest level of biodiversity management, or unknown status. The results of this mapping show that only about 3.7 percent of the state's land (4.3 percent if lakes and reservoirs are also included) is protected for conservation, either publicly or privately. Of this total, state agencies control about 52 percent, and Federal agencies control about 29 percent.\r\n\r\nConservation areas that presently protect","language":"ENGLISH","doi":"10.3133/ofr20061385","usgsCitation":"Covert, S., Kula, S.P., and Simonson, L.A., 2007, Ohio Aquatic Gap Analysis-An Assessment of the Biodiversity and Conservation Status of Native Aquatic Animal Species: U.S. Geological Survey Open-File Report 2006-1385, ix, 128 p.; Appendix A-I; 3 maps; 3 species lists, https://doi.org/10.3133/ofr20061385.","productDescription":"ix, 128 p.; Appendix A-I; 3 maps; 3 species lists","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":513,"text":"Ohio Water Science Center","active":true,"usgs":true}],"links":[{"id":194868,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9325,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2006/1385/","linkFileType":{"id":5,"text":"html"}}],"scale":"1","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -84.806389,38.248611 ], [ -84.806389,41.785556 ], [ -80.105278,41.785556 ], [ -80.105278,38.248611 ], [ -84.806389,38.248611 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4af4e4b07f02db691d64","contributors":{"authors":[{"text":"Covert, S. Alex","contributorId":39426,"corporation":false,"usgs":true,"family":"Covert","given":"S. Alex","affiliations":[],"preferred":false,"id":290581,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kula, Stephanie P. spkula@usgs.gov","contributorId":4666,"corporation":false,"usgs":true,"family":"Kula","given":"Stephanie","email":"spkula@usgs.gov","middleInitial":"P.","affiliations":[{"id":513,"text":"Ohio Water Science Center","active":true,"usgs":true}],"preferred":true,"id":290580,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Simonson, Laura A.","contributorId":63110,"corporation":false,"usgs":true,"family":"Simonson","given":"Laura","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":290582,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":79681,"text":"ofr20071019 - 2007 - Drying of floodplain forests associated with water-level decline in the Apalachicola River, Florida: Interim results, 2006","interactions":[{"subject":{"id":79681,"text":"ofr20071019 - 2007 - Drying of floodplain forests associated with water-level decline in the Apalachicola River, Florida: Interim results, 2006","indexId":"ofr20071019","publicationYear":"2007","noYear":false,"title":"Drying of floodplain forests associated with water-level decline in the Apalachicola River, Florida: Interim results, 2006"},"predicate":"SUPERSEDED_BY","object":{"id":82126,"text":"sir20085062 - 2008 - Drier forest composition associated with hydrologic change in the Apalachicola River floodplain, Florida","indexId":"sir20085062","publicationYear":"2008","noYear":false,"title":"Drier forest composition associated with hydrologic change in the Apalachicola River floodplain, Florida"},"id":1}],"supersededBy":{"id":82126,"text":"sir20085062 - 2008 - Drier forest composition associated with hydrologic change in the Apalachicola River floodplain, Florida","indexId":"sir20085062","publicationYear":"2008","noYear":false,"title":"Drier forest composition associated with hydrologic change in the Apalachicola River floodplain, Florida"},"lastModifiedDate":"2022-06-30T18:27:00.775749","indexId":"ofr20071019","displayToPublicDate":"2007-03-08T00:00:00","publicationYear":"2007","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":"2007-1019","title":"Drying of floodplain forests associated with water-level decline in the Apalachicola River, Florida: Interim results, 2006","docAbstract":"Floodplain forests of the Apalachicola River, Florida, are drier in composition today (2006) than they were before 1954, and drying is expected to continue for at least the next 50 years. Drier forest composition is probably caused by water-level declines that occurred as a result of physical changes in the main channel after 1954 and decreased flows in spring and summer months since the 1970s. \r\nForest plots sampled from 2004 to 2006 were compared to forests sampled in the late 1970s (1976-79) using a Floodplain Index (FI) based on species dominance weighted by the Floodplain Species Category, a value that represents the tolerance of tree species to inundation and saturation in the floodplain and consequently, the typical historic floodplain habitat for that species. Two types of analyses were used to determine forest changes over time: replicate plot analysis comparing present (2004-06) canopy composition to late 1970s canopy composition at the same locations, and analyses comparing the composition of size classes of trees on plots in late 1970s and in present forests. An example of a size class analysis would be a comparison of the composition of the entire canopy (all trees greater than 7.5 cm (centimeter) diameter at breast height (dbh)) to the composition of the large canopy tree size class (greater than or equal to 25 cm dbh) at one location. The entire canopy, which has a mixture of both young and old trees, is probably indicative of more recent hydrologic conditions than the large canopy, which is assumed to have fewer young trees. \r\nChange in forest composition from the pre-1954 period to approximately 2050 was estimated by combining results from three analyses. The composition of pre-1954 forests was represented by the large canopy size class sampled in the late 1970s. The average FI for canopy trees was 3.0 percent drier than the average FI for the large canopy tree size class, indicating that the late 1970s forests were 3.0 percent drier than pre-1954 forests. The change from the late 1970s to the present was based on replicate plot analysis. The composition of 71 replicate plots sampled from 2004 to 2006 averaged 4.4 percent drier than forests sampled in the late 1970s. The potential composition of future forests (2050 or later) was estimated from the composition of the present subcanopy tree size class (less than 7.5 cm and greater than or equal to 2.5 cm dbh), which contains the greatest percentage of young trees and is indicative of recent hydrologic conditions. Subcanopy trees are the driest size class in present forests, with FIs averaging 31.0 percent drier than FIs for all canopy trees. Based on results from all three sets of data, present floodplain forests average 7.4 percent drier in composition than pre-1954 forests and have the potential to become at least 31.0 percent drier in the future. An overall total change in floodplain forests to an average composition 38.4 percent drier than pre-1954 forests is expected within approximately 50 years. \r\nThe greatest effects of water-level decline have occurred in tupelo-cypress swamps where forest composition has become at least 8.8 percent drier in 2004-06 than in pre-1954 years. This change indicates that a net loss of swamps has already occurred in the Apalachicola River floodplain, and further losses are expected to continue over the next 50 years. Drying of floodplain forests will result in some low bottomland hardwood forests changing in composition to high bottomland hardwood forests. The composition of high bottomland hardwoods will also change, although periodic flooding is still occurring and will continue to limit most of the floodplain to bottomland hardwood species that are adapted to at least short periods of inundation and saturation.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr20071019","collaboration":"Prepared in cooperation with the Northwest Florida Water Management District and the Florida Department of Environmental Protection","usgsCitation":"Darst, M.R., and Light, H.M., 2007, Drying of floodplain forests associated with water-level decline in the Apalachicola River, Florida: Interim results, 2006: U.S. Geological Survey Open-File Report 2007-1019, https://doi.org/10.3133/ofr20071019.","numberOfPages":"19","onlineOnly":"Y","additionalOnlineFiles":"Y","temporalStart":"2004-01-01","temporalEnd":"2006-12-31","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":190682,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":402774,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_80793.htm"},{"id":9315,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1019/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Florida","otherGeospatial":"Apalachicola River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -85.374755859375,\n              29.82158272057499\n            ],\n            [\n              -84.72656249999999,\n              29.82158272057499\n            ],\n            [\n              -84.72656249999999,\n              30.741835717889792\n            ],\n            [\n              -85.374755859375,\n              30.741835717889792\n            ],\n            [\n              -85.374755859375,\n              29.82158272057499\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a5fe4b07f02db634076","contributors":{"authors":[{"text":"Darst, Melanie R.","contributorId":93042,"corporation":false,"usgs":true,"family":"Darst","given":"Melanie","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":290561,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Light, Helen M.","contributorId":18355,"corporation":false,"usgs":true,"family":"Light","given":"Helen","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":290560,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":79669,"text":"sir20075009 - 2007 - Simulation of Multiscale Ground-Water Flow in Part of the Northeastern San Joaquin Valley, California","interactions":[],"lastModifiedDate":"2012-03-08T17:16:20","indexId":"sir20075009","displayToPublicDate":"2007-03-03T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-5009","title":"Simulation of Multiscale Ground-Water Flow in Part of the Northeastern San Joaquin Valley, California","docAbstract":"The transport and fate of agricultural chemicals in a variety of environmental settings is being evaluated as part of the U.S. Geological Survey (USGS) National Water-Quality Assessment Program. One of the locations being evaluated is a 2,700-km2 (square kilometer) regional study area in the northeastern San Joaquin Valley surrounding the city of Modesto, an area dominated by irrigated agriculture in a semi-arid climate. Ground water is a key source of water for irrigation and public supply, and exploitation of this resource has altered the natural flow system. The aquifer system is predominantly alluvial, and an unconfined to semiconfined aquifer overlies a confined aquifer in the southwestern part of the study area; these aquifers are separated by the lacustrine Corcoran Clay. A regional-scale 16-layer steady-state model of ground-water flow in the aquifer system in the regional study area was developed to provide boundary conditions for an embedded 110-layer steady-state local-scale model of part of the aquifer system overlying the Corcoran Clay along the Merced River. The purpose of the local-scale model was to develop a better understanding of the aquifer system and to provide a basis for simulation of reactive transport of agricultural chemicals.\r\n\r\nThe heterogeneity of aquifer materials was explicitly incorporated into the regional and local models using information from geologic and drillers? logs of boreholes. Aquifer materials were differentiated in the regional model by the percentage of coarse-grained sediments in a cell, and in the local model by four hydrofacies (sand, silty sand, silt, and clay). The calibrated horizontal hydraulic conductivity values of the coarse-grained materials in the zone above the Corcoran Clay in the regional model and of the sand hydrofacies used in the local model were about equal (30?80 m/d [meter per day]), and the vertical hydraulic conductivity values in the same zone of the regional model (median of 0.012 m/d), which is dominated by the finer-grained materials, were about an order of magnitude less than that for the clay hydrofacies in the local model.\r\n\r\nData used for calibrating both models included long-term hourly water-level measurements in 20 short-screened wells installed by the USGS in the Modesto and Merced River areas. Additional calibration data for the regional model included water-level measurements in 11 wells upslope and 17 wells downslope from these areas. The root mean square error was 2.3 m (meter) for all wells in the regional model and 0.8 m for only the USGS wells; the associated average errors were 0.9 m and 0.3 m, respectively. The root mean square error for the 12 USGS wells along a transect in the local model area was 0.08 m; the average error was 0.0 m. Particle tracking was used with the local model to estimate the concentration of an environmental tracer, sulfur hexafluoride, in 10 USGS transect wells near the Merced River that were sampled for this constituent. Measured and estimated concentrations in the mid-depth and deepest wells, which would be most sensitive to errors in hydraulic conductivity estimates, were consistent. The combined results of particle tracking and sulfur hexafluoride analysis suggest that most water sampled from the transect wells was recharged less that 25 years ago.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/sir20075009","usgsCitation":"Phillips, S.P., Green, C.T., Burow, K.R., Shelton, J.L., and Rewis, D.L., 2007, Simulation of Multiscale Ground-Water Flow in Part of the Northeastern San Joaquin Valley, California: U.S. Geological Survey Scientific Investigations Report 2007-5009, viii, 43 p., https://doi.org/10.3133/sir20075009.","productDescription":"viii, 43 p.","numberOfPages":"51","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":192421,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9307,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2007/5009/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f8e4b07f02db5f309b","contributors":{"authors":[{"text":"Phillips, Steven P. 0000-0002-5107-868X sphillip@usgs.gov","orcid":"https://orcid.org/0000-0002-5107-868X","contributorId":1506,"corporation":false,"usgs":true,"family":"Phillips","given":"Steven","email":"sphillip@usgs.gov","middleInitial":"P.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":290535,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Green, Christopher T. 0000-0002-6480-8194 ctgreen@usgs.gov","orcid":"https://orcid.org/0000-0002-6480-8194","contributorId":1343,"corporation":false,"usgs":true,"family":"Green","given":"Christopher","email":"ctgreen@usgs.gov","middleInitial":"T.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":290533,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Burow, Karen R. 0000-0001-6006-6667 krburow@usgs.gov","orcid":"https://orcid.org/0000-0001-6006-6667","contributorId":1504,"corporation":false,"usgs":true,"family":"Burow","given":"Karen","email":"krburow@usgs.gov","middleInitial":"R.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":290534,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Shelton, Jennifer L. 0000-0001-8508-0270 jshelton@usgs.gov","orcid":"https://orcid.org/0000-0001-8508-0270","contributorId":1155,"corporation":false,"usgs":true,"family":"Shelton","given":"Jennifer","email":"jshelton@usgs.gov","middleInitial":"L.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":290532,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Rewis, Diane L. dlrewis@usgs.gov","contributorId":1511,"corporation":false,"usgs":true,"family":"Rewis","given":"Diane","email":"dlrewis@usgs.gov","middleInitial":"L.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":290536,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":79663,"text":"sir20065243 - 2007 - Interpretation of borehole geophysical logs, aquifer-isolation tests, and water-quality data for Sites 1, 3, and 5 at Willow Grove Naval Air Station/Joint Reserve Base, Horsham Township, Montgomery County, Pennsylvania: 2005","interactions":[],"lastModifiedDate":"2022-02-22T19:48:39.279413","indexId":"sir20065243","displayToPublicDate":"2007-02-28T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2006-5243","title":"Interpretation of borehole geophysical logs, aquifer-isolation tests, and water-quality data for Sites 1, 3, and 5 at Willow Grove Naval Air Station/Joint Reserve Base, Horsham Township, Montgomery County, Pennsylvania: 2005","docAbstract":"<p><span>Borehole geophysical logging, heatpulse-flowmeter measurements, borehole television surveys, and aquifer-isolation tests were conducted in 2005 at the Willow Grove Naval Air Station/Joint Reserve Base (NAS/JRB) in Horsham Township, Montgomery County, Pa. This study was done by the U.S. Geological Survey (USGS) in cooperation with the U.S. Navy in support of hydrogeological investigations to address ground-water contamination. Data collected for this study are valuable for understanding ground-water flow in the Stockton Formation at the local and regional scale. The Willow Grove NAS/JRB is underlain by the Stockton Formation, which consists of sedimentary rocks of Triassic age. The rocks of the Stockton Formation form a complex, heterogeneous aquifer with partially connected zones of high permeability. Borehole geophysical logs, heatpulse-flowmeter measurements, and borehole television surveys made in seven boreholes ranging from 70 to 350 ft deep were used to identify potential water-producing fractures and fracture zones and to select intervals for aquifer-isolation tests. An upward vertical hydraulic gradient was measured in one borehole, a downward vertical hydraulic gradient was measured in four boreholes, both an upward and a downward vertical hydraulic gradient were measured in one borehole, and no flow was measurable in one borehole. The aquifer-isolation tests isolated 30 discrete fractures in the seven boreholes for collection of depth-discrete hydraulic and water-quality data. Of the 30 fractures identified as potentially water producing, 26 fractures (87 percent) produced more than 1 gallon per minute of water. The specific capacity of the isolated intervals producing more than 1 gallon per minute ranged from 0.02 to 5.2 gallons per minute per foot. There was no relation between specific capacity and depth of the fracture. Samples for analysis for volatile organic compounds were collected from each isolated zone. Tetrachloroethylene (PCE) was the most prevalent compound at Site 1; concentrations were as great as 62 µg/L (micrograms per liter). 1,1-dichloroethane was the most prevalent compound at Site 3; concentrations were as great as 9.3 µg/L. Toluene was the most prevalent compound at Site 5; concentrations were as great as 77 µg/L. For five out of the six wells (83 percent) sampled for field determinations of water-quality constituents, the interval with the lowest dissolved oxygen concentration had the highest total VOC concentration.</span></p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/sir20065243","collaboration":"In cooperation with the U.S. Navy","usgsCitation":"Sloto, R.A., 2007, Interpretation of borehole geophysical logs, aquifer-isolation tests, and water-quality data for Sites 1, 3, and 5 at Willow Grove Naval Air Station/Joint Reserve Base, Horsham Township, Montgomery County, Pennsylvania: 2005: U.S. Geological Survey Scientific Investigations Report 2006-5243, x, 74 p., https://doi.org/10.3133/sir20065243.","productDescription":"x, 74 p.","numberOfPages":"75","temporalStart":"2005-01-01","temporalEnd":"2005-12-31","costCenters":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"links":[{"id":191992,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":396269,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_80753.htm"},{"id":9299,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2006/5243/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Pennsylvania","county":"Montgomery County","otherGeospatial":"Horsham Township, Willow Grove Naval Air Station/Joint Reserve Base","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -75.25,40.0 ], [ -75.25,40.25 ], [ -75.0,40.25 ], [ -75.0,40.0 ], [ -75.25,40.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1be4b07f02db6a8fc4","contributors":{"authors":[{"text":"Sloto, Ronald A. rasloto@usgs.gov","contributorId":424,"corporation":false,"usgs":true,"family":"Sloto","given":"Ronald","email":"rasloto@usgs.gov","middleInitial":"A.","affiliations":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"preferred":true,"id":290521,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":79616,"text":"ofr20071011 - 2007 - Circulation and physical processes within the San Gabriel River Estuary during summer 2005","interactions":[],"lastModifiedDate":"2014-09-11T13:58:43","indexId":"ofr20071011","displayToPublicDate":"2007-02-07T00:00:00","publicationYear":"2007","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":"2007-1011","title":"Circulation and physical processes within the San Gabriel River Estuary during summer 2005","docAbstract":"<p>The Southern California Coastal Water Research Project (SCCWRP) is developing a hydrodynamic model of the SGR estuary, which is part of the comprehensive water-quality model of the SGR estuary and watershed investigated by SCCWRP and other local agencies. The hydrodynamic model will help understanding of 1) the exchange processes between the estuary and coastal ocean; 2) the circulation patterns in the estuary; 3) upstream natural runoff and the cooling discharge from PGS.</p>\n<br>\n<p>Like all models, the SGR hydrodynamic model is only useful after it is fully calibrated and validated. In May 2005, SCCWRP requested the assistance of the U.S. geological Survey (USGS) Coastal and Marine Geology team (CMG) in collecting data on the hydrodynamic conditions in the estuary during the summer dry season. The summer was chosen for field data collection as this was assumed to be the season with the greatest potential for chronic degraded water quality due to low river flow and high thermal stratification within the estuary (due to both higher average air temperature and PGS output). Water quality can be degraded in winter as well, when higher river discharge events bring large volumes of water from the Los Angeles basin into the estuary. The objectives of this project were to 1) collect hydrodynamic data along the SGR estuary; 2) study exchange processes within the estuary through analysis of the hydrodynamic data; and 3) provide field data for model calibration and validation. As the data only exist for the summer season, the results herein only apply to summer conditions.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071011","usgsCitation":"Rosenberger, K., Xu, J., Stein, E.D., Noble, M.A., and Gartner, A.L., 2007, Circulation and physical processes within the San Gabriel River Estuary during summer 2005 (Version 1.0): U.S. Geological Survey Open-File Report 2007-1011, Report: 48 p.; Appendix: 66 p., https://doi.org/10.3133/ofr20071011.","productDescription":"Report: 48 p.; Appendix: 66 p.","temporalStart":"2005-05-01","temporalEnd":"2005-10-31","costCenters":[{"id":645,"text":"Western Coastal and Marine Geology","active":false,"usgs":true}],"links":[{"id":190748,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071011.PNG"},{"id":9239,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1011/","linkFileType":{"id":5,"text":"html"}},{"id":293761,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/of/2007/1011/of2007-1011Appendices.pdf"},{"id":293760,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1011/of2007-1011.pdf"}],"country":"United States","state":"California","otherGeospatial":"San Gabriel River Estuary","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -118.25,33.666667 ], [ -118.25,33.75 ], [ -118.0,33.75 ], [ -118.0,33.666667 ], [ -118.25,33.666667 ] ] ] } } ] }","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abce4b07f02db672cb4","contributors":{"authors":[{"text":"Rosenberger, Kurt J.","contributorId":12934,"corporation":false,"usgs":true,"family":"Rosenberger","given":"Kurt J.","affiliations":[],"preferred":false,"id":290386,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Xu, Jingping jpx@usgs.gov","contributorId":2574,"corporation":false,"usgs":true,"family":"Xu","given":"Jingping","email":"jpx@usgs.gov","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":290385,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stein, Eric D.","contributorId":20023,"corporation":false,"usgs":true,"family":"Stein","given":"Eric","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":290387,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Noble, Marlene A. mnoble@usgs.gov","contributorId":1429,"corporation":false,"usgs":true,"family":"Noble","given":"Marlene","email":"mnoble@usgs.gov","middleInitial":"A.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":290384,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gartner, Anne L.","contributorId":32620,"corporation":false,"usgs":true,"family":"Gartner","given":"Anne","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":290388,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":79611,"text":"tm4A6 - 2007 - The National Streamflow Statistics Program: A Computer Program for Estimating Streamflow Statistics for Ungaged Sites","interactions":[],"lastModifiedDate":"2023-03-10T13:02:12.06327","indexId":"tm4A6","displayToPublicDate":"2007-02-04T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":335,"text":"Techniques and Methods","code":"TM","onlineIssn":"2328-7055","printIssn":"2328-7047","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"4-A6","title":"The National Streamflow Statistics Program: A Computer Program for Estimating Streamflow Statistics for Ungaged Sites","docAbstract":"The National Streamflow Statistics (NSS) Program is a computer program that should be useful to engineers, hydrologists, and others for planning, management, and design applications. NSS compiles all current U.S. Geological Survey (USGS) regional regression equations for estimating streamflow statistics at ungaged sites in an easy-to-use interface that operates on computers with Microsoft Windows operating systems. NSS expands on the functionality of the USGS National Flood Frequency Program, and replaces it.\r\n\r\nThe regression equations included in NSS are used to transfer streamflow statistics from gaged to ungaged sites through the use of watershed and climatic characteristics as explanatory or predictor variables. Generally, the equations were developed on a statewide or metropolitan-area basis as part of cooperative study programs. Equations are available for estimating rural and urban flood-frequency statistics, such as the 1 00-year flood, for every state, for Puerto Rico, and for the island of Tutuila, American Samoa. Equations are available for estimating other statistics, such as the mean annual flow, monthly mean flows, flow-duration percentiles, and low-flow frequencies (such as the 7-day, 0-year low flow) for less than half of the states. All equations available for estimating streamflow statistics other than flood-frequency statistics assume rural (non-regulated, non-urbanized) conditions.\r\n\r\nThe NSS output provides indicators of the accuracy of the estimated streamflow statistics. The indicators may include any combination of the standard error of estimate, the standard error of prediction, the equivalent years of record, or 90 percent prediction intervals, depending on what was provided by the authors of the equations.\r\n\r\nThe program includes several other features that can be used only for flood-frequency estimation. These include the ability to generate flood-frequency plots, and plots of typical flood hydrographs for selected recurrence intervals, estimates of the probable maximum flood, extrapolation of the 500-year flood when an equation for estimating it is not available, and weighting techniques to improve flood-frequency estimates for gaging stations and ungaged sites on gaged streams.\r\n\r\nThis report describes the regionalization techniques used to develop the equations in NSS and provides guidance on the applicability and limitations of the techniques. The report also includes a users manual and a summary of equations available for estimating basin lagtime, which is needed by the program to generate flood hydrographs. The NSS software and accompanying database, and the documentation for the regression equations included in NSS, are available on the Web at http://water.usgs.gov/software/.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/tm4A6","collaboration":"Chapter 6 of\r\nBook 4, Hydrologic Analysis and Interpretation\r\nSection A, Statistical Analysis","usgsCitation":"Ries, K.G., With sections by Atkins, J.B., Hummel, P., Gray, M., Dusenbury, R., Jennings, M., Kirby, W., Riggs, H.C., Sauer, V., and Thomas, W., 2007, The National Streamflow Statistics Program: A Computer Program for Estimating Streamflow Statistics for Ungaged Sites: U.S. Geological Survey Techniques and Methods 4-A6, vi, 37 p., https://doi.org/10.3133/tm4A6.","productDescription":"vi, 37 p.","numberOfPages":"43","costCenters":[{"id":41514,"text":"Maryland-Delaware-District of Columbia  Water Science Center","active":true,"usgs":true}],"links":[{"id":124332,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/tm_4_a6.gif"},{"id":9234,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/tm/2006/tm4a6/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac7e4b07f02db67b054","contributors":{"authors":[{"text":"Ries, Kernell G. III kries@usgs.gov","contributorId":30312,"corporation":false,"usgs":true,"family":"Ries","given":"Kernell","suffix":"III","email":"kries@usgs.gov","middleInitial":"G.","affiliations":[],"preferred":false,"id":290358,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"With sections by Atkins, J. B.","contributorId":58368,"corporation":false,"usgs":true,"family":"With sections by Atkins","given":"J.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":290362,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hummel, P.R.","contributorId":73642,"corporation":false,"usgs":true,"family":"Hummel","given":"P.R.","email":"","affiliations":[],"preferred":false,"id":290364,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gray, Matthew J.","contributorId":101343,"corporation":false,"usgs":true,"family":"Gray","given":"Matthew J.","affiliations":[],"preferred":false,"id":290366,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dusenbury, R.","contributorId":33011,"corporation":false,"usgs":true,"family":"Dusenbury","given":"R.","email":"","affiliations":[],"preferred":false,"id":290360,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Jennings, M.E.","contributorId":76775,"corporation":false,"usgs":true,"family":"Jennings","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":290365,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Kirby, W.H.","contributorId":65468,"corporation":false,"usgs":true,"family":"Kirby","given":"W.H.","email":"","affiliations":[],"preferred":false,"id":290363,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Riggs, H. C.","contributorId":17210,"corporation":false,"usgs":true,"family":"Riggs","given":"H.","email":"","middleInitial":"C.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":290357,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Sauer, V.B.","contributorId":39380,"corporation":false,"usgs":true,"family":"Sauer","given":"V.B.","email":"","affiliations":[],"preferred":false,"id":290361,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Thomas, W.O. Jr.","contributorId":32133,"corporation":false,"usgs":true,"family":"Thomas","given":"W.O.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":290359,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70094223,"text":"ofr20071047SRP060 - 2007 - High-resolution airborne gravity imaging over James Ross Island (West Antarctica)","interactions":[],"lastModifiedDate":"2014-02-18T16:24:14","indexId":"ofr20071047SRP060","displayToPublicDate":"2007-02-01T16:06:00","publicationYear":"2007","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":"2007-1047-SRP-060","title":"High-resolution airborne gravity imaging over James Ross Island (West Antarctica)","docAbstract":"James Ross Island (JRI) exposes a Miocene-Recent alkaline basaltic volcanic complex that developed in a \nback-arc, east of the northern Antarctic Peninsula. JRI has been the focus of several geological studies because it \nprovides a window on Neogene magmatic processes and paleoenvironments. However, little is known about its internal \nstructure. New airborne gravity data were collected as part of the first high-resolution aerogeophysical survey flown over \nthe island and reveal a prominent negative Bouguer gravity anomaly over Mt Haddington. This is intriguing as basaltic \nvolcanoes are typically associated with positive Bouguer anomalies, linked to underlying mafic intrusions. The negative \nBouguer anomaly may be associated with a hitherto unrecognised low-density sub-surface body, such as a breccia-filled \ncaldera, or a partially molten magma chamber.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP060","usgsCitation":"Jordan, T., Ferraccioli, F., Jones, P., Smellie, J., Ghidella, M., Corr, H.F., and Zakrajsek, A., 2007, High-resolution airborne gravity imaging over James Ross Island (West Antarctica): U.S. Geological Survey Open-File Report 2007-1047-SRP-060, 4 p., https://doi.org/10.3133/ofr20071047SRP060.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282511,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp060/of2007-1047srp060.pdf"},{"id":282512,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP060.JPG"}],"otherGeospatial":"Antarctica;James Ross Island","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -58.4696,-64.4716 ], [ -58.4696,-63.7787 ], [ -57.0355,-63.7787 ], [ -57.0355,-64.4716 ], [ -58.4696,-64.4716 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd608de4b0b290850fcfc1","contributors":{"authors":[{"text":"Jordan, T.A.","contributorId":101183,"corporation":false,"usgs":true,"family":"Jordan","given":"T.A.","email":"","affiliations":[],"preferred":false,"id":490581,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ferraccioli, Fausto","contributorId":43591,"corporation":false,"usgs":true,"family":"Ferraccioli","given":"Fausto","email":"","affiliations":[],"preferred":false,"id":490575,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jones, P.C.","contributorId":70281,"corporation":false,"usgs":true,"family":"Jones","given":"P.C.","email":"","affiliations":[],"preferred":false,"id":490578,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Smellie, J.L.","contributorId":95385,"corporation":false,"usgs":true,"family":"Smellie","given":"J.L.","affiliations":[],"preferred":false,"id":490579,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ghidella, M.","contributorId":95794,"corporation":false,"usgs":true,"family":"Ghidella","given":"M.","affiliations":[],"preferred":false,"id":490580,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Corr, H. F. J.","contributorId":68214,"corporation":false,"usgs":true,"family":"Corr","given":"H.","email":"","middleInitial":"F. J.","affiliations":[],"preferred":false,"id":490577,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Zakrajsek, A.F.","contributorId":52483,"corporation":false,"usgs":true,"family":"Zakrajsek","given":"A.F.","email":"","affiliations":[],"preferred":false,"id":490576,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":79600,"text":"sir20065316 - 2007 - Geostatistical Modeling of Sediment Abundance in a Heterogeneous Basalt Aquifer at the Idaho National Laboratory, Idaho","interactions":[],"lastModifiedDate":"2012-03-08T17:16:19","indexId":"sir20065316","displayToPublicDate":"2007-01-29T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2006-5316","title":"Geostatistical Modeling of Sediment Abundance in a Heterogeneous Basalt Aquifer at the Idaho National Laboratory, Idaho","docAbstract":"The spatial distribution of sediment in the eastern Snake River Plain aquifer was evaluated and modeled to improve the parameterization of hydraulic conductivity (K) for a subregional-scale ground-water flow model being developed by the U.S. Geological Survey. The aquifer is hosted within a layered series of permeable basalts within which intercalated beds of fine-grained sediment constitute local confining units. These sediments have K values as much as six orders of magnitude lower than the most permeable basalt, and previous flow-model calibrations have shown that hydraulic conductivity is sensitive to the proportion of intercalated sediment.\r\n\r\nStratigraphic data in the form of sediment thicknesses from 333 boreholes in and around the Idaho National Laboratory were evaluated as grouped subsets of lithologic units (composite units) corresponding to their relative time-stratigraphic position. The results indicate that median sediment abundances of the stratigraphic units below the water table are statistically invariant (stationary) in a spatial sense and provide evidence of stationarity across geologic time, as well. Based on these results, the borehole data were kriged as two-dimensional spatial data sets representing the sediment content of the layers that discretize the ground-water flow model in the uppermost 300 feet of the aquifer.\r\n\r\nMultiple indicator kriging (mIK) was used to model the geographic distribution of median sediment abundance within each layer by defining the local cumulative frequency distribution (CFD) of sediment via indicator variograms defined at multiple thresholds. The mIK approach is superior to ordinary kriging because it provides a statistically best estimate of sediment abundance (the local median) drawn from the distribution of local borehole data, independent of any assumption of normality. A methodology is proposed for delineating and constraining the assignment of hydraulic conductivity zones for parameter estimation, based on the locally estimated CFDs and relative kriging uncertainty. A kriging-based methodology improves the spatial resolution of hydraulic property zones that can be considered during parameter estimation and should improve calibration performance and sensitivity by more accurately reflecting the nuances of sediment distribution within the aquifer.\r\n\r\n","language":"ENGLISH","doi":"10.3133/sir20065316","collaboration":"Prepared in cooperation with the U.S. Department of Energy","usgsCitation":"Welhan, J.A., Farabaugh, R.L., Merrick, M.J., and Anderson, S.R., 2007, Geostatistical Modeling of Sediment Abundance in a Heterogeneous Basalt Aquifer at the Idaho National Laboratory, Idaho: U.S. Geological Survey Scientific Investigations Report 2006-5316, vi, 32 p., https://doi.org/10.3133/sir20065316.","productDescription":"vi, 32 p.","numberOfPages":"38","costCenters":[{"id":343,"text":"Idaho Water Science Center","active":true,"usgs":true}],"links":[{"id":192529,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9221,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2006/5316/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac7e4b07f02db67b3a0","contributors":{"authors":[{"text":"Welhan, John A.","contributorId":12128,"corporation":false,"usgs":true,"family":"Welhan","given":"John","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":290333,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Farabaugh, Renee L.","contributorId":92361,"corporation":false,"usgs":true,"family":"Farabaugh","given":"Renee","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":290335,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Merrick, Melissa J.","contributorId":80368,"corporation":false,"usgs":true,"family":"Merrick","given":"Melissa","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":290334,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Anderson, Steven R.","contributorId":6532,"corporation":false,"usgs":true,"family":"Anderson","given":"Steven","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":290332,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":79587,"text":"ofr20061390 - 2007 - Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill Hole Data in Yucca Flat, Nye County, Nevada","interactions":[{"subject":{"id":79587,"text":"ofr20061390 - 2007 - Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill Hole Data in Yucca Flat, Nye County, Nevada","indexId":"ofr20061390","publicationYear":"2007","noYear":false,"title":"Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill Hole Data in Yucca Flat, Nye County, Nevada"},"predicate":"SUPERSEDED_BY","object":{"id":80141,"text":"sir20075062 - 2007 - Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill-Hole Data in Yucca Flat, Nye County, Nevada","indexId":"sir20075062","publicationYear":"2007","noYear":false,"title":"Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill-Hole Data in Yucca Flat, Nye County, Nevada"},"id":1}],"supersededBy":{"id":80141,"text":"sir20075062 - 2007 - Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill-Hole Data in Yucca Flat, Nye County, Nevada","indexId":"sir20075062","publicationYear":"2007","noYear":false,"title":"Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill-Hole Data in Yucca Flat, Nye County, Nevada"},"lastModifiedDate":"2012-02-02T00:14:12","indexId":"ofr20061390","displayToPublicDate":"2007-01-20T00:00:00","publicationYear":"2007","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":"2006-1390","title":"Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill Hole Data in Yucca Flat, Nye County, Nevada","docAbstract":"Yucca Flat is a topographic and structural basin in the northeastern part of the Nevada Test Site (NTS) in Nye County, Nevada, that has been the site of numerous underground nuclear tests; many of these tests occurred within the young alluvial basin-fill deposits. The migration of radionuclides to the Paleozoic carbonate aquifer involves passage through this thick, heterogeneous section of Tertiary and Quaternary rock. An understanding of the lateral and vertical changes in the material properties of young alluvial basin-fill deposits will aid in the further development of the hydrogeologic framework and the delineation of hydrostratigraphic units and hydraulic properties required for simulating ground-water flow in the Yucca Flat area. This report by the U.S. Geological Survey, in cooperation with the U.S. Department of Energy, presents data and interpretation regarding the three-dimensional variability of the shallow alluvial aquifers in areas of testing at Yucca Flat, data that are potentially useful in the understanding of the subsurface flow system. This report includes a summary and interpretation of alluvial basin-fill stratigraphy in the Yucca Flat area based on drill hole data from 285 selected drill holes. Spatial variations in lithology and grain size of the Neogene basin-fill sediments can be established when data from numerous drill holes are considered together. Lithologic variations are related to different depositional environments within the basin including alluvial fan, channel, basin axis, and playa deposits.\r\n","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ofr20061390","collaboration":"Prepared in cooperation with the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office under Interagency Agreement DE-AI52-01NV13944","usgsCitation":"Sweetkind, D., and Drake, R.M., 2007, Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill Hole Data in Yucca Flat, Nye County, Nevada (Superseded by SIR 2007-5062): U.S. Geological Survey Open-File Report 2006-1390, iv, 17 p., https://doi.org/10.3133/ofr20061390.","productDescription":"iv, 17 p.","numberOfPages":"21","onlineOnly":"Y","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":190899,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9206,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2006/1390/","linkFileType":{"id":5,"text":"html"}}],"edition":"Superseded by SIR 2007-5062","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a870d","contributors":{"authors":[{"text":"Sweetkind, Donald S.","contributorId":18732,"corporation":false,"usgs":true,"family":"Sweetkind","given":"Donald S.","affiliations":[],"preferred":false,"id":290303,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Drake, Ronald M. II 0000-0002-1770-4667 rmdrake@usgs.gov","orcid":"https://orcid.org/0000-0002-1770-4667","contributorId":1353,"corporation":false,"usgs":true,"family":"Drake","given":"Ronald","suffix":"II","email":"rmdrake@usgs.gov","middleInitial":"M.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":290302,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":79557,"text":"sir20055222 - 2007 - Hydrogeology of the Coconino Plateau and adjacent areas, Coconino and Yavapai Counties, Arizona","interactions":[],"lastModifiedDate":"2016-06-23T15:38:10","indexId":"sir20055222","displayToPublicDate":"2007-01-13T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2005-5222","title":"Hydrogeology of the Coconino Plateau and adjacent areas, Coconino and Yavapai Counties, Arizona","docAbstract":"<p>Two large, regional ground-water flow systems occur in the Coconino Plateau and adjacent areas: the C aquifer and the Redwall-Muav aquifer. The C aquifer occurs mainly in the eastern and southern parts of the 10,300-square-mile Coconino Plateau study area, and the Redwall-Muav aquifer underlies the entire study area. The C aquifer is a water-table aquifer for most of its occurrence with depths to water that range from a few hundred feet to more than 1,500 feet. In the western part of the Coconino Plateau study area, the C aquifer is dry except for small localized perched water-bearing zones decoupled from the C aquifer to the east. The Redwall-Muav aquifer underlies the C aquifer and ranges from at least 3,000 feet below land surface in the western part of the Coconino Plateau study area to more than 3,200 feet below land surface in the eastern part of the study area. The Redwall-Muav aquifer is a confined aquifer for most of its occurrence with hydraulic heads of several hundred to more than 500 feet above the top of the aquifer in the western part of the study area and more than 2,000 feet above the top of the aquifer in the eastern part of the study area near Flagstaff. In the eastern and northeast parts of the area, the C aquifer and the Redwall-Muav aquifer are in partial hydraulic connection through faults and other fractures. The water discharging from the two aquifers on the Coconino Plateau study area is generally of good quality for most intended uses. Water from sites in the lower Little Colorado River Canyon had high concentrations of most trace elements relative to other springs, rivers, and streams in the study area. Concentrations of barium, arsenic, uranium, and lead, and gross alpha radioactivity were greater than U.S. Environmental Protection Agency Maximum Contaminant Levels for drinking water at some sites. Ground water discharging to most springs, streams, and wells on the Coconino Plateau and in adjacent areas is a calcium magnesium bicarbonate type and has low concentrations of the major dissolved constituents. Ground water discharging from the Redwall-Muav aquifer to springs in the lower Little Colorado River Canyon is a mixture of water from the C aquifer and the Redwall-Muav aquifer and is a sodium chloride type with high concentrations of most major dissolved constituents. Concentrations of sulfate and chloride in ground water discharging from the Redwall-Muav aquifer at springs near the south rim of Grand Canyon increase toward the west. Water samples from the Verde River above Mormon Pocket had higher concentrations of most dissolved constituents than samples from springs that discharge from the Redwall-Muav aquifer at Mormon Pocket and in Sycamore Canyon. Water-chemistry data from C aquifer wells and springs in the Flagstaff area indicate that ground-water ages in the aquifer range from 7,000 years to modern and that samples were a mix of younger and older waters. Ground-water ages for the Redwall-Muav aquifer are estimated to range from 22,600 to 7,500 years, and low tritium values indicate that this water is older than water discharging from the C aquifer. Tritium and carbon-14 results indicate that ground water discharging at most springs and streams is a mixture of young and old ground waters, likely resulting from multiple flow paths and multiple recharge areas. Ground-water withdrawals in the study area increased from about 4,000 acre-feet per year prior to 1975, to about 20,000 acre-feet per year in 2003. About two-thirds of the water withdrawn is from the C aquifer and about one-third is from the Redwall-Muav aquifer. In the study area, most development of the C aquifer has occurred near Flagstaff. Development of the Redwall-Muav aquifer is more extensive in Verde Valley where water-bearing zones of the aquifer are closer to land surface. In recent years, however, development of the Redwall-Muav aquifer in the study area has increased in response to population growth and the atten</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/sir20055222","collaboration":"Prepared in cooperation with the Arizona Department of Water Resources","usgsCitation":"Bills, D., Flynn, M., and Monroe, S.A., 2007, Hydrogeology of the Coconino Plateau and adjacent areas, Coconino and Yavapai Counties, Arizona (Version 1.0: Originally posted 2007; Version 1.1: March 2016): U.S. Geological Survey Scientific Investigations Report 2005-5222, Report: xi, 101 p.; 4 Plates: 30.88 x 31.88 inches or smaller, https://doi.org/10.3133/sir20055222.","productDescription":"Report: xi, 101 p.; 4 Plates: 30.88 x 31.88 inches or smaller","numberOfPages":"107","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"links":[{"id":318944,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2005/5222/sir2005-5222_text.pdf","text":"Report","size":"7.9 MB","linkFileType":{"id":1,"text":"pdf"},"description":"SIR 2015-5222 Report"},{"id":318945,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/sir/2005/5222/sir2005-5222_plate1.pdf","text":"Plate 1","size":"9.2 MB","linkFileType":{"id":1,"text":"pdf"},"description":"SIR 2005-5222 Plate 1"},{"id":9173,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2005/5222/","linkFileType":{"id":5,"text":"html"}},{"id":318946,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/sir/2005/5222/sir2005-5222_plate2.pdf","text":"Plate 2","size":"18.2 MB","linkFileType":{"id":1,"text":"pdf"},"description":"SIR 2005-5222 Plate 2"},{"id":318947,"rank":6,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/sir/2005/5222/sir2005-5222_plate3.pdf","text":"Plate 3","size":"17.8 MB","linkFileType":{"id":1,"text":"pdf"},"description":"SIR 2005-5222 Plate 3"},{"id":318948,"rank":7,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/sir/2005/5222/sir2005-5222_plate4.pdf","text":"Plate 4","size":"17.8 MB","linkFileType":{"id":1,"text":"pdf"},"description":"SIR 2005-5222 Plate 4"},{"id":318949,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/sir/2005/5222/coverthb.jpg"}],"geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -113.25,34.5 ], [ -113.25,36.75 ], [ -111,36.75 ], [ -111,34.5 ], [ -113.25,34.5 ] ] ] } } ] }","edition":"Version 1.0: Originally posted 2007; Version 1.1: March 2016","contact":"<p><a href=\"mailto:dc_az@usgs.gov\">Director</a>, Arizona Water Science Center<br /> U.S. Geological Survey<br /> 520 N. Park Avenue<br /> Tucson, AZ 85719<br /> <a href=\"http://az.water.usgs.gov\" target=\"blank\">http://az.water.usgs.gov</a></p>","tableOfContents":"<ul>\n<li>Abstract</li>\n<li>Introduction</li>\n<li>Hydrogeology</li>\n<li>Water Chemistry</li>\n<li>Conceptual Model of the Ground-Water Flow Systems</li>\n<li>Considerations for Additional Data Collection and Monitoring</li>\n<li>Summary and Conclusions</li>\n<li>References Cited</li>\n<li>Supplemental Data</li>\n</ul>","revisedDate":"2016-03-17","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae1e4b07f02db688820","contributors":{"authors":[{"text":"Bills, Donald J. djbills@usgs.gov","contributorId":4180,"corporation":false,"usgs":true,"family":"Bills","given":"Donald J.","email":"djbills@usgs.gov","affiliations":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"preferred":false,"id":290223,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Flynn, Marilyn E. meflynn@usgs.gov","contributorId":1039,"corporation":false,"usgs":true,"family":"Flynn","given":"Marilyn E.","email":"meflynn@usgs.gov","affiliations":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"preferred":true,"id":290222,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Monroe, Stephen A.","contributorId":103313,"corporation":false,"usgs":true,"family":"Monroe","given":"Stephen","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":290224,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70093627,"text":"ofr20071047SRP040 - 2007 - Mega debris flow deposits on the western Wilkes Land margin, East Antarctica","interactions":[],"lastModifiedDate":"2014-02-10T16:00:22","indexId":"ofr20071047SRP040","displayToPublicDate":"2007-01-01T15:41:00","publicationYear":"2007","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":"2007-1047-SRP-040","title":"Mega debris flow deposits on the western Wilkes Land margin, East Antarctica","docAbstract":"Multichannel seismic data collected off Western Wilkes Land (East Antarctica) reveal the occurrence of mega \ndebris flow deposits on the lower slope and rise that were formed throughout the Miocene. Commonly, debris flow units \nare separated by thin deposits of well-stratified facies, interpreted as predominantly glaciomarine mixed contouritic and \ndistal turbidite deposits. These units could act as weak layers and could have played a major role in the slope instability. \nHigh sedimentation rates, due to large amounts of sediment delivered from a temperate, wet-based ice sheet, constituted \na key factor in the sediment failures. The main trigger mechanism would probably have been earthquakes enhanced by \nisostatic rebound following major ice sheet retreats.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP040","usgsCitation":"Donda, F., O’Brien, P.E., De Santis, L., Rebesco, M., and Brancolini, G., 2007, Mega debris flow deposits on the western Wilkes Land margin, East Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-040, 4 p., https://doi.org/10.3133/ofr20071047SRP040.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282235,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP040.JPG"},{"id":282234,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp040/of2007-1047srp040.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd6683e4b0b29085100ce2","contributors":{"authors":[{"text":"Donda, F.","contributorId":40792,"corporation":false,"usgs":true,"family":"Donda","given":"F.","email":"","affiliations":[],"preferred":false,"id":490096,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"O’Brien, P. E.","contributorId":91271,"corporation":false,"usgs":false,"family":"O’Brien","given":"P.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":490098,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"De Santis, L.","contributorId":96471,"corporation":false,"usgs":true,"family":"De Santis","given":"L.","email":"","affiliations":[],"preferred":false,"id":490099,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rebesco, M.","contributorId":60120,"corporation":false,"usgs":true,"family":"Rebesco","given":"M.","affiliations":[],"preferred":false,"id":490097,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Brancolini, Giuliano","contributorId":29150,"corporation":false,"usgs":false,"family":"Brancolini","given":"Giuliano","email":"","affiliations":[],"preferred":false,"id":490095,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70074776,"text":"ofr20071047SRP033 - 2007 - Jurassic magmatism in Dronning Maud Land: synthesis of results of the MAMOG project","interactions":[],"lastModifiedDate":"2014-02-03T15:34:48","indexId":"ofr20071047SRP033","displayToPublicDate":"2007-01-01T15:13:00","publicationYear":"2007","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":"2007-1047-SRP-033","title":"Jurassic magmatism in Dronning Maud Land: synthesis of results of the MAMOG project","docAbstract":"The Jurassic Karoo large igneous province (LIP) of Antarctica, and its conjugate margin in southern Africa, \nis critical for investigating important questions about the relationship of basaltic LIPs to mantle plumes. Detailed \naerogeophysical, structural, anisotropy of magnetic susceptibility (AMS), geochronological and geochemical \ninvestigations completed under the British Antarctic Survey’s MAMOG project have provided some of the answers. \nAcross most of the area, magma volumes were small compared to those in southern Africa. Jurassic dikes intruding the \nArchean craton are sparse and the Jutulstraumen trough, a Jurassic rift, is interpreted, from aerogeophysical data, as \nlargely amagmatic. The largest volumes of magma were emplaced along the margin of the craton and close to the \nAfrica-Antarctica rift. Although dikes were emplaced by both vertical and horizontal flow, overwhelmingly magmas in \nDronning Maud Land were locally derived, and not emplaced laterally from distant sources. Basaltic magmatism was \nprotracted in Dronning Maud Land (several dike emplacement episodes between ~206 and 175 Ma), and the small \nmagma volumes resulted in highly diverse magma compositions, including picrites and ferropicrites interpreted to have \nbeen derived from hot mantle in a mantle plume. The protracted magmatism before the locally ~177 Ma flood lava \neruptions, and evidence for a radiating dike swarm, favor a model of mantle plume incubation for 20-30 million years \nbefore flood lava eruption.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP033","usgsCitation":"Leat, P., Curtis, M., Riley, T., and Ferraccioli, F., 2007, Jurassic magmatism in Dronning Maud Land: synthesis of results of the MAMOG project: U.S. Geological Survey Open-File Report 2007-1047-SRP-033, 4 p., https://doi.org/10.3133/ofr20071047SRP033.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":281930,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP033.JPG"},{"id":281926,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp033/of2007-1047srp033.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd6364e4b0b290850fec3f","contributors":{"authors":[{"text":"Leat, P.T.","contributorId":54511,"corporation":false,"usgs":true,"family":"Leat","given":"P.T.","email":"","affiliations":[],"preferred":false,"id":489864,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Curtis, M.L.","contributorId":55335,"corporation":false,"usgs":true,"family":"Curtis","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":489865,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Riley, T.R.","contributorId":107609,"corporation":false,"usgs":true,"family":"Riley","given":"T.R.","email":"","affiliations":[],"preferred":false,"id":489866,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ferraccioli, Fausto","contributorId":43591,"corporation":false,"usgs":true,"family":"Ferraccioli","given":"Fausto","email":"","affiliations":[],"preferred":false,"id":489863,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70103193,"text":"ofr20071047SRP104 - 2007 - Multiple shallow level sill intrusions coupled with hydromagmatic explosive eruptions marked the initial phase of Ferrar large igneous province magmatism in northern Victoria Land, Antarctica","interactions":[],"lastModifiedDate":"2014-04-29T15:07:22","indexId":"ofr20071047SRP104","displayToPublicDate":"2007-01-01T14:50:00","publicationYear":"2007","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":"2007-1047-SRP-104","title":"Multiple shallow level sill intrusions coupled with hydromagmatic explosive eruptions marked the initial phase of Ferrar large igneous province magmatism in northern Victoria Land, Antarctica","docAbstract":"Field data gathered during GANOVEX IX (2005/2006) in Northern Victoria Land, Antarctica, indicate that \nvolcaniclastic deposits of phreatomagmatic eruptions (so-called Exposure Hill Type events) are intercalated with fluvial \ndeposits of Triassic-Jurassic age at two stratigraphic levels. Abundant scoriaceous spatter (locally welded) indicates a \nhawaiian/strombolian component. Breccia-filled diatremes, from which volcaniclastic deposits were sourced, are rooted \nin sills which intruded wet sediments. The deposits are thus subaerial expressions of initial Ferrar magmatism involving \nintrusion of multiple shallow-level sills. Due to magma-sediment interaction abundant clastic dikes are developed that \nintrude the sediments and sills. All igneous components in the volcaniclastic deposits are andesitic in composition, as \nare the chilled margins of the sills. They are more differentiated than the basaltic andesites of the younger effusive \nsection of Kirkpatrick plateau lavas which in northern Victoria Land start with pillow lavas and small volume lava \nflows from volcanic necks.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP104","usgsCitation":"Viereck-Goette, L., Schoner, R., Bomfleur, B., and Schneider, J., 2007, Multiple shallow level sill intrusions coupled with hydromagmatic explosive eruptions marked the initial phase of Ferrar large igneous province magmatism in northern Victoria Land, Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-104, 5 p., https://doi.org/10.3133/ofr20071047SRP104.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286785,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP104.JPG"},{"id":286784,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp104/of2007-1047srp104.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5360c9f0e4b082a3ecf53e1e","contributors":{"authors":[{"text":"Viereck-Goette, L.","contributorId":37641,"corporation":false,"usgs":true,"family":"Viereck-Goette","given":"L.","email":"","affiliations":[],"preferred":false,"id":493205,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schoner, R.","contributorId":97004,"corporation":false,"usgs":true,"family":"Schoner","given":"R.","email":"","affiliations":[],"preferred":false,"id":493208,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bomfleur, B.","contributorId":54116,"corporation":false,"usgs":true,"family":"Bomfleur","given":"B.","email":"","affiliations":[],"preferred":false,"id":493206,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schneider, J.","contributorId":85546,"corporation":false,"usgs":true,"family":"Schneider","given":"J.","email":"","affiliations":[],"preferred":false,"id":493207,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70094193,"text":"ofr20071047SRP055 - 2007 - Break-up of Gondwana and opening of the South Atlantic: Review of existing plate tectonic models","interactions":[],"lastModifiedDate":"2014-02-18T14:14:41","indexId":"ofr20071047SRP055","displayToPublicDate":"2007-01-01T14:05:00","publicationYear":"2007","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":"2007-1047-SRP-055","title":"Break-up of Gondwana and opening of the South Atlantic: Review of existing plate tectonic models","docAbstract":"The opening history of both the Weddell Sea and South Atlantic Ocean is critical to understanding the break-\nup of Gondwana and the evolution of Antarctica since Early Jurassic times. The dispersal of the Gondwanide fragments\nis important to understanding the development of past ocean circulation. Unfortunately the tectonics of the Weddell Sea\nregion is difficult to resolve because of the paucity of data coverage and the region’s inherent complexity. Although\nconsiderable progress has been achieved in the past 20 years with new marine aeromagnetic data and satellite derived\ngravity anomaly maps, there are still several models in consideration which differ in crustal ages and schemes of opening. In this paper we present a review of four of those models. Focusing on poles of rotation, synthetic isochrons and\nflowlines, we proceed backward in time beginning at Chron 34 (83.5 Ma), as it is relatively well defined ocean wide,\nand present crustal age maps that display the estimated trace of the South America-Antarctica-Africa triple junction for\neach model. We also plot reconstructions at four selected epochs for all models using the same projection and scale to facilitate comparison. The diverse simplifying assumptions that need to be made in every case regarding plate fragmentation to account for the numerous syn-rift basins and periods of stretching are strong indicators that rigid plate tectonics is too simple a model for the present problem.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP055","usgsCitation":"Ghidella, M., Lawver, L., and Gahagan, L., 2007, Break-up of Gondwana and opening of the South Atlantic: Review of existing plate tectonic models: U.S. Geological Survey Open-File Report 2007-1047-SRP-055, 5 p., https://doi.org/10.3133/ofr20071047SRP055.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282490,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp055/of2007-1047srp055.pdf"},{"id":282492,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP055.JPG"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd4fcae4b0b290850f2ee5","contributors":{"authors":[{"text":"Ghidella, M.E.","contributorId":37645,"corporation":false,"usgs":true,"family":"Ghidella","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":490547,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lawver, L.A.","contributorId":73599,"corporation":false,"usgs":true,"family":"Lawver","given":"L.A.","email":"","affiliations":[],"preferred":false,"id":490548,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gahagan, L.M.","contributorId":15112,"corporation":false,"usgs":true,"family":"Gahagan","given":"L.M.","email":"","affiliations":[],"preferred":false,"id":490546,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70121082,"text":"70121082 - 2007 - USGS Tampa Bay Pilot Study","interactions":[],"lastModifiedDate":"2014-08-19T14:23:39","indexId":"70121082","displayToPublicDate":"2007-01-01T13:12:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":3,"text":"Organization Series"},"title":"USGS Tampa Bay Pilot Study","docAbstract":"<p>Many of the nation's estuaries have been environmentally stressed since the turn of the 20th century and will continue to be impacted in the future. Tampa Bay, one the Gulf of Mexico's largest estuaries, exemplifies the threats that our estuaries face (EPA Report 2001, Tampa Bay Estuary Program-Comprehensive Conservation and Management Plan (TBEP-CCMP)). More than 2 million people live in the Tampa Bay watershed, and the population constitutes to grow. Demand for freshwater resources, conversion of undeveloped areas to resident and industrial uses, increases in storm-water runoff, and increased air pollution from urban and industrial sources are some of the known human activities that impact Tampa Bay. Beginning on 2001, additional anthropogenic modifications began in Tampa Bat including construction of an underwater gas pipeline and a desalinization plant, expansion of existing ports, and increased freshwater withdrawal from three major tributaries to the bay.</p>\n<br>\n<p>In January of 2001, the Tampa Bay Estuary Program (TBEP) and its partners identifies a critical need for participation from the U.S. Geological Survey (USGS) in providing multidisciplinary expertise and a regional-scale, integrated science approach to address complex scientific research issue and critical scientific information gaps that are necessary for continued restoration and preservation of Tampa Bay. Tampa Bay stakeholders identified several critical science gaps for which USGS expertise was needed (Yates et al. 2001). These critical science gaps fall under four topical categories (or system components): 1) water and sediment quality, 2) hydrodynamics, 3) geology and geomorphology, and 4) ecosystem structure and function. Scientists and resource managers participating in Tampa Bay studies recognize that it is no longer sufficient to simply examine each of these estuarine system components individually, Rather, the interrelation among system components must be understood to develop conceptual and predictive modeling tools for effective ecosystem adaptive management. As a multidisciplinary organization, the USGS possesses the capability of developing and coordinating an integrated science strategy for estuarine research founded on partnerships and collaborative efforts, multidisciplinary teams of scientists, and integrated field work, data analysis and interpretation, and product development. The primary role of the USGS in Tamps Bay research was defined with our partners based upon this capability to address estuarine issues using an integrated science approach with a regional perspective and within a national context to complement the numerous ongoing scien efforts by state and local agencies that address local issues within Tamp Bay. Six primary components of the USGS Tamp Bay Study address critical gaps within each of the the four estuarine system components and focus on:</p>\n<br>\n<p>1.) Examining how natural and man-made \nphysical changes affect ecosystem health \nthrough mapping and modeling.</p>\n<p>2.) Identifying sources and quality of \ngroundwater, surface water, and \nsediment,</p>\n<p>3.) Identifying sources and quality of \ngroundwater, surface water, and \nsediment,</p>\n<p>4.) Assessing the natural and man-made \nchanges affecting wetland health and \nrestoration,</p>\n<p>5.) Identifying and measuring the impact of \nurbanization on seafloor habitats,</p>\n<p>Providing a web-based digital \ninformation management system of information for scientists and the public, \nincluding a system that supports the work \nof those officials who must make \ndecisions that affect the state of the bay.</p>\n<br>\n<p>The Tampa Bay Study is in its sixth year and will \ncontinue through September 2007. This paper \npresents a non-inclusive summary of key findings \nassociated with the six primary project \ncomponents listed above. Component 4 (above) is \ndescribed in detail in the following chapter 13. \nMore information on the Tampa Bay Study is \navailable from our on-line digital information \nsystem for the Tampa Bay Study at \nhttp://gulfsci.usgs.gov.</p>","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Baywide Environmental Monitoring Report, 2002-2005","largerWorkSubtype":{"id":3,"text":"Organization Series"},"language":"English","publisher":"Tampa Bay Estuary Program","publisherLocation":"St. Petersburg, FL","usgsCitation":"Yates, K.K., Cronin, T.M., Crane, M., Hansen, M., Nayeghandi, A., Swarzenski, P., Edgar, T., Brooks, G.R., Suthard, B., Hine, A., Locker, S., Willard, D., Hastings, D., Flower, B., Hollander, D., Larson, R., and Smith, K., 2007, USGS Tampa Bay Pilot Study, 17 p.","productDescription":"17 p.","startPage":"13-1","endPage":"13-17","numberOfPages":"17","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":292579,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Tampa Bay","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -82.881921,27.346605 ], [ -82.881921,28.096584 ], [ -82.301152,28.096584 ], [ -82.301152,27.346605 ], [ -82.881921,27.346605 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53f464d0e4b073ff773a7d7c","contributors":{"authors":[{"text":"Yates, K. 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M. 0000-0002-2643-0979","orcid":"https://orcid.org/0000-0002-2643-0979","contributorId":42613,"corporation":false,"usgs":true,"family":"Cronin","given":"T.","email":"","middleInitial":"M.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":false,"id":498775,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Crane, M.","contributorId":86957,"corporation":false,"usgs":true,"family":"Crane","given":"M.","email":"","affiliations":[],"preferred":false,"id":498784,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hansen, M.","contributorId":34670,"corporation":false,"usgs":true,"family":"Hansen","given":"M.","affiliations":[],"preferred":false,"id":498774,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Nayeghandi, A.","contributorId":91792,"corporation":false,"usgs":true,"family":"Nayeghandi","given":"A.","email":"","affiliations":[],"preferred":false,"id":498785,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Swarzenski, P. 0000-0003-0116-0578","orcid":"https://orcid.org/0000-0003-0116-0578","contributorId":49156,"corporation":false,"usgs":true,"family":"Swarzenski","given":"P.","affiliations":[],"preferred":false,"id":498777,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Edgar, T.","contributorId":70595,"corporation":false,"usgs":true,"family":"Edgar","given":"T.","email":"","affiliations":[],"preferred":false,"id":498781,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Brooks, G. R.","contributorId":96312,"corporation":false,"usgs":true,"family":"Brooks","given":"G.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":498787,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Suthard, B.","contributorId":103105,"corporation":false,"usgs":true,"family":"Suthard","given":"B.","affiliations":[],"preferred":false,"id":498789,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Hine, A.","contributorId":96107,"corporation":false,"usgs":true,"family":"Hine","given":"A.","affiliations":[],"preferred":false,"id":498786,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Locker, S.","contributorId":72218,"corporation":false,"usgs":true,"family":"Locker","given":"S.","affiliations":[],"preferred":false,"id":498782,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Willard, Debra  A. 0000-0003-4878-0942","orcid":"https://orcid.org/0000-0003-4878-0942","contributorId":85982,"corporation":false,"usgs":true,"family":"Willard","given":"Debra  A.","affiliations":[],"preferred":false,"id":498783,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Hastings, D.","contributorId":43186,"corporation":false,"usgs":true,"family":"Hastings","given":"D.","affiliations":[],"preferred":false,"id":498776,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Flower, B.","contributorId":51116,"corporation":false,"usgs":true,"family":"Flower","given":"B.","email":"","affiliations":[],"preferred":false,"id":498778,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Hollander, D.","contributorId":52417,"corporation":false,"usgs":true,"family":"Hollander","given":"D.","email":"","affiliations":[],"preferred":false,"id":498779,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Larson, R.A.","contributorId":58786,"corporation":false,"usgs":true,"family":"Larson","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":498780,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Smith, K.","contributorId":100578,"corporation":false,"usgs":true,"family":"Smith","given":"K.","affiliations":[],"preferred":false,"id":498788,"contributorType":{"id":1,"text":"Authors"},"rank":17}]}}
,{"id":70065877,"text":"ofr20071047KP09 - 2007 - Tectonics of the West Antarctic rift system: new light on the history and dynamics of distributed intracontinental extension","interactions":[],"lastModifiedDate":"2014-01-07T13:06:57","indexId":"ofr20071047KP09","displayToPublicDate":"2007-01-01T12:39:00","publicationYear":"2007","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":"2007-1047-KP-09","title":"Tectonics of the West Antarctic rift system: new light on the history and dynamics of distributed intracontinental extension","docAbstract":"The West Antarctic rift system (WARS) is the product of \nmultiple stages of intracontinental deformation from Jurassic to Present. The Cretaceous rifting phase accomplished \n>100 percent extension across the Ross Sea and central West \nAntarctica, and is widely perceived as a product of pure shear \nextension orthogonal to the Transantarctic Mountains that led \nto breakup and opening of the Southern Ocean between West \nAntarctica and New Zealand. New structural, petrological, \nand geochronological data from Marie Byrd Land reveal \naspects of the kinematics, thermal history, and chronology of \nthe Cretaceous intracontinental extension phase that cannot \nbe readily explained by a single progressive event. Elevated \ntemperatures in \"Lachlan-type\" crust caused extensive \ncrustal melting and mid-crustal flow within a dextral transcurrent strain environment, leading to rapid extension and \nlocally to exhumation and rapid cooling of a migmatite dome \nand detachment footwall structures. Peak metamorphism and \nonset of crustal flow that brought about WARS extension \nbetween 105 Ma and 90 Ma is kinematically, temporally, \nand spatially linked to the active convergent margin system \nof East Gondwana. West Antarctica-New Zealand breakup \nis distinguished as a separate event at 83-70 Ma, from the \nstandpoint of kinematics and thermal evolution","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"National Academies Press","publisherLocation":"Washington, DC","doi":"10.3133/ofr20071047KP09","usgsCitation":"Siddoway, C., 2007, Tectonics of the West Antarctic rift system: new light on the history and dynamics of distributed intracontinental extension: U.S. Geological Survey Open-File Report 2007-1047-KP-09, 24 p., https://doi.org/10.3133/ofr20071047KP09.","productDescription":"24 p.","startPage":"91","endPage":"114","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":280653,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047KP09.JPG"},{"id":280652,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/kp/kp09/of2007-1047kp09.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd766fe4b0b2908510ae5e","contributors":{"authors":[{"text":"Siddoway, C.S.","contributorId":28893,"corporation":false,"usgs":true,"family":"Siddoway","given":"C.S.","email":"","affiliations":[],"preferred":false,"id":487930,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70093688,"text":"ofr20071047SRP043 - 2007 - East Antarctic ice-sheet dynamics between 5.2 and 0 Ma from a high-resolution terrigenous particle size record, ODP Site 1165, Prydz Bay-Cooperation Sea","interactions":[],"lastModifiedDate":"2014-02-11T10:19:26","indexId":"ofr20071047SRP043","displayToPublicDate":"2007-01-01T10:00:00","publicationYear":"2007","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":"2007-1047-SRP-043","title":"East Antarctic ice-sheet dynamics between 5.2 and 0 Ma from a high-resolution terrigenous particle size record, ODP Site 1165, Prydz Bay-Cooperation Sea","docAbstract":"This paper discusses a 5.2-0 Ma high-resolution terrigenous particle size record recovered from a sediment \ndrift off East Antarctica. The particle size properties of Hole 1165B are interpreted in the context of previously acquired \ndata on a continental shelf to slope transect drilled by ODP Leg 188 in Prydz Bay and the Cooperation Sea. The new \ndata indicate that the Lambert ice stream stayed predominantly landward of the shelf break in the early Pliocene (5.2-3.5 \nMa) with periods of ice sheet recession on land. The middle Pliocene (3.5-3.1 Ma) is characterized as major ice \nexpansion during glacials with deposition of laminated clays from meltwater plumes on the continental rise, alternating \nwith periods of ice recession. A change in sedimentary facies and a decrease in sedimentation rates occurred at ~3.1 Ma \nindicating a more retreated Lambert Glacier. Between 2.5 and 1 Ma the ice stream was generally stable and had become \ncold-based with ice flow in a glacial trough extending to the shelf break. Three-four large pulses of coarse-grained \nglacigenic debris mark the record at ~1 Ma. These are interpreted as extensive calving due to decoupling of the marine \nterminus from its bed in response to Northern Hemisphere deglaciations and associated sea level rises.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP043","usgsCitation":"Passchier, S., 2007, East Antarctic ice-sheet dynamics between 5.2 and 0 Ma from a high-resolution terrigenous particle size record, ODP Site 1165, Prydz Bay-Cooperation Sea: U.S. Geological Survey Open-File Report 2007-1047-SRP-043, 4 p., https://doi.org/10.3133/ofr20071047SRP043.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282256,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP043.JPG"},{"id":282255,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp043/of2007-1047srp043.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd563ae4b0b290850f6cb4","contributors":{"authors":[{"text":"Passchier, S.","contributorId":15117,"corporation":false,"usgs":false,"family":"Passchier","given":"S.","email":"","affiliations":[],"preferred":false,"id":490148,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70100983,"text":"ofr20071047SRP088 - 2007 - Trends in discharge and flow season timing of the Onyx River, Wright Valley, Antarctica since 1969","interactions":[],"lastModifiedDate":"2018-02-21T17:41:22","indexId":"ofr20071047SRP088","displayToPublicDate":"2007-01-01T09:19:00","publicationYear":"2007","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":"2007-1047-SRP-088","title":"Trends in discharge and flow season timing of the Onyx River, Wright Valley, Antarctica since 1969","docAbstract":"Flow records at the two stream gauges on the Onyx River represent the longest actively collected \nenvironmental records in the McMurdo Dry Valleys, Antarctica. The downstream gauge, near Lake Vanda, has been \ncollecting data since 1969, and the upstream gauge, at Lower Wright Glacier (LWRT), has collected data since 1972. \nWe analyzed these records to assess the long-term trends in annual discharge, flow season length, flow season start, and \nflow season end. Our results indicate overall decreasing trends in annual discharge (0.4x106\n m3\n/decade at LWRT, 0.8 \nx106\n m3\n/decade at Vanda), and increasing flow season lengths (by 7 d/decade at LWRT, and 2.7 d/decade at Vanda), \ninfluenced by earlier start and later end dates (5.2 and 0.8 d/decade, respectively at LWRT; 4.8, 1.4 d/decade, \nrespectively at Vanda). This suggests that flow season climate patterns in the Dry Valleys are decreasing glacier melt \nintensity overall, but extending the period of meltwater generation","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP088","usgsCitation":"Gooseff, M.N., McKnight, D.M., Doran, P.T., and Lyons, W.B., 2007, Trends in discharge and flow season timing of the Onyx River, Wright Valley, Antarctica since 1969: U.S. Geological Survey Open-File Report 2007-1047-SRP-088, 4 p., https://doi.org/10.3133/ofr20071047SRP088.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":285879,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP088.PNG"},{"id":285878,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp088/of2007-1047srp088.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"535595a3e4b0120853e8c2aa","contributors":{"authors":[{"text":"Gooseff, Michael N.","contributorId":71880,"corporation":false,"usgs":true,"family":"Gooseff","given":"Michael","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":492480,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McKnight, Diane M.","contributorId":59773,"corporation":false,"usgs":false,"family":"McKnight","given":"Diane","email":"","middleInitial":"M.","affiliations":[{"id":16833,"text":"INSTAAR, University of Colorado","active":true,"usgs":false}],"preferred":false,"id":492478,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Doran, Peter T.","contributorId":67007,"corporation":false,"usgs":true,"family":"Doran","given":"Peter","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":492479,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lyons, W. Berry","contributorId":73497,"corporation":false,"usgs":true,"family":"Lyons","given":"W.","email":"","middleInitial":"Berry","affiliations":[],"preferred":false,"id":492481,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70034629,"text":"70034629 - 2007 - Evaluating the accotink creek restoration project for improving water quality, in-stream habitat, and bank stability","interactions":[],"lastModifiedDate":"2012-03-12T17:21:41","indexId":"70034629","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Evaluating the accotink creek restoration project for improving water quality, in-stream habitat, and bank stability","docAbstract":"Increased urbanization results in a larger percentage of connected impervious areas and can contribute large quantities of stormwater runoff and significant quantities of debris and pollutants (e.g., litter, oils, microorganisms, sediments, nutrients, organic matter, and heavy metals) to receiving waters. To improve water quality in urban and suburban areas, watershed managers often incorporate best management practices (BMPs) to reduce the quantity of runoff as well as to minimize pollutants and other stressors contained in stormwater runoff. It is well known that land-use practices directly impact urban streams. Stream flows in urbanized watersheds increase in magnitude as a function of impervious area and can result in degradation of the natural stream channel morphology affecting the physical, chemical, and biological integrity of the stream. Stream bank erosion, which also increases with increased stream flows, can lead to bank instability, property loss, infrastructure damage, and increased sediment loading to the stream. Increased sediment loads may lead to water quality degradation downstream and have negative impacts on fish, benthic invertebrates, and other aquatic life. Accotink Creek is in the greater Chesapeake Bay and Potomac watersheds, which have strict sediment criteria. The USEPA (United States Environmental Protection Agency) and USGS (United States Geological Survey) are investigating the effectiveness of stream restoration techniques as a BMP to decrease sediment load and improve bank stability, biological integrity, and in-stream water quality in an impaired urban watershed in Fairfax, Virginia. This multi-year project continuously monitors turbidity, specific conductance, pH, and water temperature, as well as biological and chemical water quality parameters. In addition, physical parameters (e.g., pebble counts, longitudinal and cross sectional stream surveys) were measured to assess geomorphic changes associated with the restoration. Data from the pre-construction and initial post-construction phases are presented in this report. ?? 2007 ASCE.","largerWorkTitle":"Examining the Confluence of Environmental and Water Concerns - Proceedings of the World Environmental and Water Resources Congress 2006","conferenceTitle":"World Environmental and Water Resources Congress 2006: Examining the Confluence of Environmental and Water Concerns","conferenceDate":"21 May 2006 through 25 May 2006","conferenceLocation":"Omaha, NE","language":"English","doi":"10.1061/40856(200)402","isbn":"0784408564; 9780784408568","usgsCitation":"Struck, S., Selvakumar, A., Hyer, K., and O’Connor, T., 2007, Evaluating the accotink creek restoration project for improving water quality, in-stream habitat, and bank stability, <i>in</i> Examining the Confluence of Environmental and Water Concerns - Proceedings of the World Environmental and Water Resources Congress 2006, Omaha, NE, 21 May 2006 through 25 May 2006, https://doi.org/10.1061/40856(200)402.","costCenters":[],"links":[{"id":215659,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1061/40856(200)402"},{"id":243478,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationDate":"2012-04-26","publicationStatus":"PW","scienceBaseUri":"505a0bf6e4b0c8380cd5297d","contributors":{"authors":[{"text":"Struck, S.D.","contributorId":71786,"corporation":false,"usgs":true,"family":"Struck","given":"S.D.","email":"","affiliations":[],"preferred":false,"id":446758,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Selvakumar, A.","contributorId":84999,"corporation":false,"usgs":true,"family":"Selvakumar","given":"A.","email":"","affiliations":[],"preferred":false,"id":446759,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hyer, K.","contributorId":71023,"corporation":false,"usgs":true,"family":"Hyer","given":"K.","affiliations":[],"preferred":false,"id":446757,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"O’Connor, T.","contributorId":10630,"corporation":false,"usgs":true,"family":"O’Connor","given":"T.","email":"","affiliations":[],"preferred":false,"id":446756,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70033223,"text":"70033223 - 2007 - The influence of major dams on hydrology through the drainage network of the Sacramento River basin, California","interactions":[],"lastModifiedDate":"2012-03-12T17:21:35","indexId":"70033223","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3301,"text":"River Research and Applications","active":true,"publicationSubtype":{"id":10}},"title":"The influence of major dams on hydrology through the drainage network of the Sacramento River basin, California","docAbstract":"This paper reports basinwide patterns of hydrograph alteration via statistical and graphical analysis from a network of long-term streamflow gauges located various distances downstream of major dams and confluences in the Sacramento River basin in California, USA. Streamflow data from 10 gauging stations downstream of major dams were divided into hydrologic series corresponding to the periods before and after dam construction. Pre- and post-dam flows were compared with respect to hydrograph characteristics representing frequency, magnitude and shape: annual flood peak, annual flow trough, annual flood volume, time to flood peak, flood drawdown time and interarrival time. The use of such a suite of characteristics within a statistical and graphical framework allows for generalising distinct strategies of flood control operation that can be identified without any a priori knowledge of operations rules. Dam operation is highly dependent on the ratio of reservoir capacity to annual flood volume (impounded runoff index). Dams with high values of this index generally completely cut off flood peaks thus reducing time to peak, drawdown time and annual flood volume. Those with low values conduct early and late flow releases to extend the hydrograph, increasing time to peak, drawdown time and annual flood volume. The analyses reveal minimal flood control benefits from foothill dams in the lower Sacramento River (i.e. dissipation of the down-valley flood control signal). The lower part of the basin is instead reliant on a weir and bypass system to control lowland flooding. Data from a control gauge (i.e. with no upstream dams) suggest a background signature of global climate change expressed as shortened flood hydrograph falling limbs and lengthened flood interarrival times at low exceedence probabilities. This research has implications for flood control, water resource management, aquatic and riparian ecosystems and for rehabilitation strategies involving flow alteration and/or manipulation of sediment supplies. Copyright ?? 2006 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"River Research and Applications","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/rra.968","issn":"15351459","usgsCitation":"Singer, M., 2007, The influence of major dams on hydrology through the drainage network of the Sacramento River basin, California: River Research and Applications, v. 23, no. 1, p. 55-72, https://doi.org/10.1002/rra.968.","startPage":"55","endPage":"72","numberOfPages":"18","costCenters":[],"links":[{"id":213187,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/rra.968"},{"id":240790,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"1","noUsgsAuthors":false,"publicationDate":"2006-10-26","publicationStatus":"PW","scienceBaseUri":"505bad2de4b08c986b323a2a","contributors":{"authors":[{"text":"Singer, M.B.","contributorId":67274,"corporation":false,"usgs":true,"family":"Singer","given":"M.B.","email":"","affiliations":[],"preferred":false,"id":439906,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70030110,"text":"70030110 - 2007 - Suspended sediment transport in an ephemeral stream following wildfire","interactions":[],"lastModifiedDate":"2023-08-03T11:40:18.33254","indexId":"70030110","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2318,"text":"Journal of Geophysical Research F: Earth Surface","active":true,"publicationSubtype":{"id":10}},"title":"Suspended sediment transport in an ephemeral stream following wildfire","docAbstract":"<div class=\" metis-abstract\"><div class=\"article-section__content en main\"><p>We examine the impacts of a stand-clearing wildfire on the characteristics and magnitude of suspended sediment transport in ephemeral streams draining the burn area. We report the results of a monitoring program that includes 2 years of data prior to the Cerro Grande fire in New Mexico, and 3 years of postfire data. Suspended sediment concentration (SSC) increased by about 2 orders of magnitude following the fire, and the proportion of silt and clay increased from 50% to 80%. For a given flow event, SSC is highest at the flood bore and decreases monotonically with time, a pattern evident in every flood sampled both before and after the fire. We propose that the accumulation of flow and wash load at the flow front is an inherent characteristic of ephemeral stream flows, due to amplified momentum losses at the flood bore. We present a new model for computing suspended sediment transport in ephemeral streams (in the presence or absence of wildfire) by relating SSC to the time following the arrival of the flood bore, rather than to instantaneous discharge. Using this model and a rainfall history, we estimate that in the 3 years following the fire, floods transported in suspension a mass equivalent to about 3 mm of landscape lowering across the burn area, 20% of this following a single rainstorm. We test the model by computing fine sediment delivery to a small reservoir in an adjacent watershed, where we have a detailed record of postfire sedimentation based on repeat surveys. Systematic discrepancies between modeled and measured sedimentation rates in the reservoir suggest rapid reductions in suspended sediment delivery in the first several years after the fire.</p></div></div>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2005JF000459","issn":"01480227","usgsCitation":"Malmon, D., Reneau, S.L., Katzman, D., Lavine, A., and Lyman, J., 2007, Suspended sediment transport in an ephemeral stream following wildfire: Journal of Geophysical Research F: Earth Surface, v. 112, no. 2, 16 p., https://doi.org/10.1029/2005JF000459.","productDescription":"16 p.","costCenters":[],"links":[{"id":240405,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"112","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-04-18","publicationStatus":"PW","scienceBaseUri":"505ba306e4b08c986b31fb22","contributors":{"authors":[{"text":"Malmon, D.V.","contributorId":22960,"corporation":false,"usgs":true,"family":"Malmon","given":"D.V.","affiliations":[],"preferred":false,"id":425744,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reneau, Steven L.","contributorId":99639,"corporation":false,"usgs":false,"family":"Reneau","given":"Steven","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":425746,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Katzman, D.","contributorId":34660,"corporation":false,"usgs":true,"family":"Katzman","given":"D.","email":"","affiliations":[],"preferred":false,"id":425745,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lavine, A.","contributorId":103876,"corporation":false,"usgs":true,"family":"Lavine","given":"A.","email":"","affiliations":[],"preferred":false,"id":425747,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lyman, J.","contributorId":22153,"corporation":false,"usgs":true,"family":"Lyman","given":"J.","email":"","affiliations":[],"preferred":false,"id":425743,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
]}