Between October 1980 and April 1981, currents were measured within Lydonia Canyon and on the adjacent shelf and slope. The amplitude of the subtidal currents over the shelf and slope ranged between 10 and 30 cm s−1, but within the canyon, they were typically smaller than 5 cm s−1. The subtidal currents had well-defined spatial structures over the shelf and the slope and in the middle and outer portions of the canyon. The along-isobath flow over the shelf and slope was unaltered by the canyon. Currents within the canyon and just above it were driven up and down the canyon by the cross-shelf pressure gradient in geostrophic equilibrium with the along-shelf flow. The measurements suggest that the Coriolis force on the cross-canyon flow, turbulent Reynolds stresses, and acceleration of the along-canyon flow balanced the imposed pressure gradient for flow near the rim of Lydonia Canyon. The Coriolis force was not important in the deeper portions of the canyon, where baroclinic adjustments of the density field began to be an important factor in the momentum balance. A simple model indicates that the magnitude of the horizontal turbulent viscosity coefficient for subtidal flow in this narrow canyon is 106 to 107 cm2 s−1. The mixing indicated by the large amplitude of the viscosity coefficient was probably caused by the strong tidal currents present within Lydonia Canyon. On the shelf, along-isobath currents were locally driven by the large-scale component of the wind field; along-shelf currents were equally correlated with local winds and with winds from sites 700 km northeast of Lydonia Canyon. Wind stress was not correlated with currents over the slope in water deeper than 450 m or with currents within the canyon.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JC094iC06p08091","issn":"01480227","usgsCitation":"Noble, M., and Butman, B., 1989, The structure of subtidal currents within and around Lydonia Canyon: Evidence for enhanced cross-shelf fluctuations over the mouth of the canyon: Journal of Geophysical Research - Oceans, v. 94, no. C6, p. 8091-8110, https://doi.org/10.1029/JC094iC06p08091.","productDescription":"20 p.","startPage":"8091","endPage":"8110","numberOfPages":"20","costCenters":[],"links":[{"id":222986,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"94","issue":"C6","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505bb09be4b08c986b324f77","contributors":{"authors":[{"text":"Noble, M.","contributorId":15340,"corporation":false,"usgs":true,"family":"Noble","given":"M.","email":"","affiliations":[],"preferred":false,"id":372402,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Butman, B.","contributorId":85580,"corporation":false,"usgs":true,"family":"Butman","given":"B.","email":"","affiliations":[],"preferred":false,"id":372403,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70016039,"text":"70016039 - 1989 - Multiobjective sampling design for parameter estimation and model discrimination in groundwater solute transport","interactions":[],"lastModifiedDate":"2018-02-21T12:47:57","indexId":"70016039","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Multiobjective sampling design for parameter estimation and model discrimination in groundwater solute transport","docAbstract":"Sampling design for site characterization studies of solute transport in porous media is formulated as a multiobjective problem. Optimal design of a sampling network is a sequential process in which the next phase of sampling is designed on the basis of all available physical knowledge of the system. Three objectives are considered: model discrimination, parameter estimation, and cost minimization. For the first two objectives, physically based measures of the value of information obtained from a set of observations are specified. In model discrimination, value of information of an observation point is measured in terms of the difference in solute concentration predicted by hypothesized models of transport. Points of greatest difference in predictions can contribute the most information to the discriminatory power of a sampling design. Sensitivity of solute concentration to a change in a parameter contributes information on the relative variance of a parameter estimate. Inclusion of points in a sampling design with high sensitivities to parameters tends to reduce variance in parameter estimates. Cost minimization accounts for both the capital cost of well installation and the operating costs of collection and analysis of field samples. Sensitivities, discrimination information, and well installation and sampling costs are used to form coefficients in the multiobjective problem in which the decision variables are binary (zero/one), each corresponding to the selection of an observation point in time and space. The solution to the multiobjective problem is a noninferior set of designs. To gain insight into effective design strategies, a one-dimensional solute transport problem is hypothesized. Then, an approximation of the noninferior set is found by enumerating 120 designs and evaluating objective functions for each of the designs. Trade-offs between pairs of objectives are demonstrated among the models. The value of an objective function for a given design is shown to correspond to the ability of a design to actually meet an objective.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/WR025i010p02245","usgsCitation":"Knopman, D.S., and Voss, C.I., 1989, Multiobjective sampling design for parameter estimation and model discrimination in groundwater solute transport: Water Resources Research, v. 25, no. 10, p. 2245-2258, https://doi.org/10.1029/WR025i010p02245.","productDescription":"14 p.","startPage":"2245","endPage":"2258","costCenters":[],"links":[{"id":222987,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"10","noUsgsAuthors":false,"publicationDate":"2010-07-09","publicationStatus":"PW","scienceBaseUri":"505a6035e4b0c8380cd71386","contributors":{"authors":[{"text":"Knopman, Debra S.","contributorId":51472,"corporation":false,"usgs":true,"family":"Knopman","given":"Debra","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":372404,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Voss, Clifford I. 0000-0001-5923-2752 cvoss@usgs.gov","orcid":"https://orcid.org/0000-0001-5923-2752","contributorId":1559,"corporation":false,"usgs":true,"family":"Voss","given":"Clifford","email":"cvoss@usgs.gov","middleInitial":"I.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":372405,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70015425,"text":"70015425 - 1989 - Accounting for intracell flow in models with emphasis on water table recharge and stream-aquifer interaction: 1. Problems and concepts","interactions":[],"lastModifiedDate":"2018-02-21T13:08:57","indexId":"70015425","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Accounting for intracell flow in models with emphasis on water table recharge and stream-aquifer interaction: 1. Problems and concepts","docAbstract":"Intracell flow is important in modeling cells that contain both sources and sinks. Special attention is needed if recharge through the water table is a source. One method of modeling multiple sources and sinks is to determine the net recharge per cell. For example, for a model cell containing both a sink and recharge through the water table, the amount of recharge should be reduced by the ratio of the area of influence of the sink within the cell to the area of the cell. The reduction is the intercepted portion of the recharge. In a multilayer model this amount is further reduced by a proportion factor, which is a function of the depth of the flow lines from the water table boundary to the internal sink. A gaining section of a stream is a typical sink. The aquifer contribution to a gaining stream can be conceptualized as having two parts; the first part is the intercepted lateral flow from the water table and the second is the flow across the streambed due to differences in head between the water level in the stream and the aquifer below. The amount intercepted is a function of the geometry of the cell, but the amount due to difference in head across the stream bed is largely independent of cell geometry. A discharging well can intercept recharge through the water table within a model cell. The net recharge to the cell would be reduced in proportion to the area of influence of the well within the cell. The area of influence generally changes with time. Thus the amount of intercepted recharge and net recharge may not be constant with time. During periods when the well is not discharging there will be no intercepted recharge even though the area of influence from previous pumping may still exist. The reduction of net recharge per cell due to internal interception of flow will result in a model-calculated mass balance less than the prototype. Additionally the “effective transmissivity” along the intercell flow paths may be altered when flow paths are occupied by intercepted recharge.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/WR025i004p00669","usgsCitation":"Jorgensen, D.G., Signor, D.C., and Imes, J.L., 1989, Accounting for intracell flow in models with emphasis on water table recharge and stream-aquifer interaction: 1. Problems and concepts: Water Resources Research, v. 25, no. 4, p. 669-676, https://doi.org/10.1029/WR025i004p00669.","productDescription":"8 p.","startPage":"669","endPage":"676","costCenters":[],"links":[{"id":223767,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"4","noUsgsAuthors":false,"publicationDate":"2010-07-09","publicationStatus":"PW","scienceBaseUri":"5059e66ee4b0c8380cd47401","contributors":{"authors":[{"text":"Jorgensen, Donald G.","contributorId":19537,"corporation":false,"usgs":true,"family":"Jorgensen","given":"Donald","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":370909,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Signor, Donald C.","contributorId":13220,"corporation":false,"usgs":true,"family":"Signor","given":"Donald","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":370908,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Imes, Jeffrey L. jimes@usgs.gov","contributorId":2983,"corporation":false,"usgs":true,"family":"Imes","given":"Jeffrey","email":"jimes@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":370907,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70015424,"text":"70015424 - 1989 - Temporal and spatial patterns of phytoplankton production in Tomales Bay, California, U.S.A.","interactions":[],"lastModifiedDate":"2023-10-05T18:09:35.172787","indexId":"70015424","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1587,"text":"Estuarine, Coastal and Shelf Science","active":true,"publicationSubtype":{"id":10}},"title":"Temporal and spatial patterns of phytoplankton production in Tomales Bay, California, U.S.A.","docAbstract":"Primary productivity in the water column was measured 14 times between April 1985 and April 1986 at three sites in Tomales Bay, California, USA The conditions at these three stations encompassed the range of hydrographic conditions, phytoplankton biomass, phytoplankton community composition, and turbidity typical of this coastal embayment. Linear regression of the measured daily carbon uptake against the composite parameter B Zp Io (where B is the average phytoplankton biomass in the photic zone; Zp is the photic depth; and Io is the daily surface insolation) indicates that 90% of the variability in primary productivity is explained by variations in phytoplankton biomass and light availability. The linear function derived using Tomales Bay data is essentially the same as that which explains more than 80% of the variation in productivity in four other estuarine systems. Using the linear function and measured values for B, Zp, and Io, the daily photic-zone productivity was estimated for 10 sites at monthly intervals over the annual period. The average daily photic-zone productivity for the 10 sites ranged from 0·2 to 2·2 g C m−2. The bay-wide average annual primary productivity in the water column was 400 g C m−2, with most of the uptake occuring in spring and early summer. Spatial and temporal variations in primary productivity were similar to variations in phytoplankton biomass. Productivity was highest in the seaward and central regions of the bay and lowest in the shallow landward region.
","language":"English","publisher":"Elsevier","doi":"10.1016/0272-7714(89)90045-0","issn":"02727714","usgsCitation":"Cole, B., 1989, Temporal and spatial patterns of phytoplankton production in Tomales Bay, California, U.S.A.: Estuarine, Coastal and Shelf Science, v. 28, no. 1, p. 103-115, https://doi.org/10.1016/0272-7714(89)90045-0.","productDescription":"13 p.","startPage":"103","endPage":"115","costCenters":[],"links":[{"id":223766,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Tomales Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -122.81795834500238,\n 38.064691049842935\n ],\n [\n -122.8186964817126,\n 38.07398879812351\n ],\n [\n -122.82386343868507,\n 38.07960561502537\n ],\n [\n -122.82238716526439,\n 38.091806178957114\n 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surfaces","interactions":[],"lastModifiedDate":"2015-06-02T10:31:38","indexId":"70016051","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2312,"text":"Journal of Geophysical Research","active":true,"publicationSubtype":{"id":10}},"title":"Thermal infrared (2.5-13.5 μm) spectroscopic remote sensing of igneous rock types on particulate planetary surfaces","docAbstract":"Fundamental molecular vibration bands are significantly diminished by scattering. Thus such bands in spectra of fine particulate regoliths (i.e., dominated by <5-μm particles), or regoliths displaying a similar scale of porosity, are difficult to use for mineralogical or rock type identification. Consequently, other spectral features have been sought that may be more useful in spectroscopic remote sensing of composition. We find that mineralogical information is retained in overtones and combination tones of the fundamental molecular vibrations in the 3.0- to 7.0-μm region, but that relatively few minerals have a sufficiently distinctive band structure to be unambiguously identified with currently available techniques. More significantly, identification of general rock type, as defined by the SCFM chemical index (SCFM = SiO2/SiO2 + CaO + FeO + MgO), is possible using spectral features associated with the principal Christiansen frequency and with a region of relative transparency between the Si-O stretching and bending bands. However, environmental factors may affect the appearance and wavelengths of these features. Finally, prominent absorption bands may result from the presence of relatively small amounts of water, hydroxyl or carbonate, because absorption bands exhibited by these materials in the 2.7- to 4.0-μm region, where silicate spectra are otherwise featureless, increase strongly in spectral contrast with decreasing particle size. Such materials are thus detectable in very small amounts in a particulate regolith composed predominantly of silicate minerals.
","language":"English","publisher":"AGU Publications","doi":"10.1029/JB094iB07p09192","issn":"01480227","usgsCitation":"Salisbury, J.W., and Walter, L.S., 1989, Thermal infrared (2.5-13.5 μm) spectroscopic remote sensing of igneous rock types on particulate planetary surfaces: Journal of Geophysical Research, v. 94, no. B7, p. 9192-9202, https://doi.org/10.1029/JB094iB07p09192.","productDescription":"11 p.","startPage":"9192","endPage":"9202","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":223192,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"94","issue":"B7","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505bb228e4b08c986b32562d","contributors":{"authors":[{"text":"Salisbury, John W.","contributorId":96420,"corporation":false,"usgs":true,"family":"Salisbury","given":"John","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":372428,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Walter, Louis S.","contributorId":97927,"corporation":false,"usgs":true,"family":"Walter","given":"Louis","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":372429,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70015417,"text":"70015417 - 1989 - Non-energy minerals and surficial geology of the continental margin of Maryland","interactions":[],"lastModifiedDate":"2024-10-09T11:10:37.6228","indexId":"70015417","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2667,"text":"Marine Geology","active":true,"publicationSubtype":{"id":10}},"title":"Non-energy minerals and surficial geology of the continental margin of Maryland","docAbstract":"This paper summarizes and discusses the various aspects and methods of artificial recharge with particular emphasis on its uses and potential role in water management in the Arabian Gulf region.
Artificial recharge occurs when man's activities cause more water to enter an aquifer, either under pumping or non-pumping conditions, than otherwise would enter the aquifer. Use of artificial recharge can be a practical means of dealing with problems of overdraft of groundwater.
Methods of artificial recharge may be grouped under two broad types: (a) water spreading techniques, and (b) well-injection techniques. Successful use of artificial recharge requires a thorough knowledge of the physical and chemical characteristics of the aquifier system, and extensive onsite experimentation and tailoring of the artificial-recharge technique to fit the local or areal conditions.
In general, water spreading techniques are less expensive than well injection and large quantities of water can be handled. Water spreading can also result in significant improvement in quality of recharge waters during infiltration and movement through the unsaturated zone and the receiving aquifer. In comparison, well-injection techniques are often used for emplacement of fresh recharge water into saline aquifer zones to form a manageable lens of fresher water, which may later be partially withdrawn for use or continue to be maintained as a barrier against salt-water encroachment.
A major advantage in use of groundwater is its availability, on demand to wells, from a natural storage reservoir that is relatively safe from pollution and from damage by sabotage or other hostile action. However, fresh groundwater occurs only in limited quantities in most of the Arabian Gulf region; also, it is heavily overdrafted in many areas, and receives very little natural recharge. Good use could be made of artificial recharge by well injection in replenishing and managing aquifers in strategic locations if sources of freshwater could be made available for the artificial-recharge operations.
Organic liquids inadvertently spilled and then distributed in the unsaturated zone can pose a long-term threat to ground water. Many of these substances have significant volatility, and thereby establish a premise for contaminant removal from the unsaturated zone by inducing advective air-phase transport with wells screened in the unsaturated zone. In order to focus attention on the rates of mass transfer from liquid to vapour phases, sand columns were partially saturated with gasoline and vented under steady air-flow conditions. The ability of an equilibrium-based transport model to predict the hydrocarbon vapor flux from the columns implies an efficient rate of local phase transfer for reasonably high air-phase velocities. Thus the success of venting remediations will depend primarily on the ability to induce an air-flow field in a heterogeneous unsaturated zone that will intersect the distributed contaminant. To analyze this aspect of the technique, a mathematical model was developed to predict radially symmetric air flow induced by venting from a single well. This model allows for in-situ determinations of air-phase permeability, which is the fundamental design parameter, and for the analysis of the limitations of a single well design. A successful application of the technique at a site once contaminated by gasoline supports the optimism derived from the experimental and modeliing phases of this study, and illustrates the well construction and field methods used to document the volatile contaminant recovery.
Water extracted from fluid inclusions in quartz from shallow epithermal ore deposits often has a hydrogen isotope composition (δD) different from that of water extracted from inclusions in associated minerals. This difference is usually attributed to the involvement of primary fluids from multiple sources. Isotopic and homogenization and freezing temperature determinations on fluid inclusions from contemporaneous quartz and sphalerite from the epithermal, silver and base metal orebodies of the OH vein, Creede district, Colorado, suggest an alternative explanation. In near-surface deposits, differences between δDH2O of inclusion fluids in ore minerals and quartz may result, instead, from contamination during extraction of the fluids contained in primary inclusions by shallow ground water trapped in pseudosecondary inclusions in quartz.
\nQuartz from the OH vein contains two principal petrographically distinct populations of fluid inclusions: primary and pseudosecondary. The primary inclusions have salinities ranging from 5 to 10 equiv wt percent NaCl, and the salinities of pseudosecondary inclusions cluster between 0 and 1 percent. Primary inclusions in quartz from one locality have a measured δDH2O value of -69 per mil, while pseudosecondary inclusions at the same locality have a δDH2O value of -102 per mil. Both salinity and isotopic values for primary inclusions in quartz are similar to those for primary inclusions in contemporaneous sphalerite. Homogenization temperatures for primary and pseudosecondary inclusions in quartz range from 191° to 280° C and from 199° to 278° C, respectively. The δDH2O value measured on fluid inclusions from bulk crystals ranges between -97 and -85 per mil and represents a mixture of fluids from both primary and pseudosecondary inclusions.
\nWe interpret the data to indicate that one or more episodes of abrupt incursion of cooler, overlying ground water into the ore zone caused thermal cracking of the quartz crystals during the time interval of mineralization. Subsequent healing of the fractures trapped heated, low-salinity ground water in pseudosecondary inclusions. The abrupt incursions of overlying ground water are speculated to have resulted from either collapse of a transient vapor-dominated region of the ore zone, or catastrophic venting of the system through hydrothermal eruption(s).
\nThe unusually high contrast between the salinities of the ore-depositing fluids and the ground water overlying the ore zone allowed recognition of this phenomenon at Creede. It is likely, however, that Creede is not unique. Similar phenomena may be common in shallow ore zones where rapid fluctuation of an interface between a deep, high-temperature thermal plume and an overlying, cooler ground water may be expected to occur. Careful study of the origins of fluid inclusions, particularly in quartz, is essential to characterize the primary ore fluids and to assess the role of ground water in the hydrology of shallow ore deposits.
","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.84.7.1966","issn":"03610128","usgsCitation":"Foley, N.K., Bethke, P., and Rye, R.O., 1989, A reinterpretation of the δDH2O of inclusion fluids in contemporaneous quartz and sphalerite, Creede mining district, Colorodo: a generic problem for shallow orebodies?: Economic Geology, v. 84, no. 7, p. 1966-1977, https://doi.org/10.2113/gsecongeo.84.7.1966.","productDescription":"12 p.","startPage":"1966","endPage":"1977","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":223576,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Colorado","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -108.5943603515625,\n 37.00693943418586\n ],\n [\n -108.5943603515625,\n 38.805470223177466\n ],\n [\n -106.116943359375,\n 38.805470223177466\n ],\n [\n -106.116943359375,\n 37.00693943418586\n ],\n [\n -108.5943603515625,\n 37.00693943418586\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"84","issue":"7","noUsgsAuthors":false,"publicationDate":"1989-11-01","publicationStatus":"PW","scienceBaseUri":"5059e545e4b0c8380cd46c55","contributors":{"authors":[{"text":"Foley, Nora K. 0000-0003-0124-3509 nfoley@usgs.gov","orcid":"https://orcid.org/0000-0003-0124-3509","contributorId":4010,"corporation":false,"usgs":true,"family":"Foley","given":"Nora","email":"nfoley@usgs.gov","middleInitial":"K.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":369856,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bethke, Philip M.","contributorId":52829,"corporation":false,"usgs":true,"family":"Bethke","given":"Philip M.","affiliations":[],"preferred":false,"id":369857,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rye, Robert O. rrye@usgs.gov","contributorId":1486,"corporation":false,"usgs":true,"family":"Rye","given":"Robert","email":"rrye@usgs.gov","middleInitial":"O.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":369858,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70015013,"text":"70015013 - 1989 - 100 years of sedimentation study by the USGS","interactions":[],"lastModifiedDate":"2012-03-12T17:18:51","indexId":"70015013","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"100 years of sedimentation study by the USGS","docAbstract":"On January 15, 1889, the U.S. Geological Survey began collecting sediment data on the Rio Grande at Embudo, New Mexico. During the past 100 years the U.S. Geological Survey's Water Resources Division (WRD) has collected daily sediment data at more than 1,200 sites. Projects have addressed the problems associated with reservoir construction, agricultural irrigation projects, energy production, and transport and deposition of pollutants sorbed to sediments. The Survey has been active as a charter member of the Federal Interagency Sediment Project and currently has three full-time hydrologists working on the project. The WRD's sediment-research projects have covered a wide variety of subjects from the fundamental theories of resistance to flow and sediment transport in alluvial channels to lunar erosion mechanisms.","conferenceTitle":"Sediment Transport Modeling: Proceedings of the International Symposium","conferenceDate":"14 August 1989 through 18 August 1989","conferenceLocation":"New Orleans, LA, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872627187","usgsCitation":"Glysson, G.D., 1989, 100 years of sedimentation study by the USGS, Sediment Transport Modeling: Proceedings of the International Symposium, New Orleans, LA, USA, 14 August 1989 through 18 August 1989, p. 260-265.","startPage":"260","endPage":"265","numberOfPages":"6","costCenters":[],"links":[{"id":224452,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e221e4b0c8380cd4599f","contributors":{"authors":[{"text":"Glysson, G. Douglas","contributorId":13607,"corporation":false,"usgs":true,"family":"Glysson","given":"G.","email":"","middleInitial":"Douglas","affiliations":[],"preferred":false,"id":369855,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70015011,"text":"70015011 - 1989 - Estimating urban flood-frequency characteristics","interactions":[],"lastModifiedDate":"2012-03-12T17:18:51","indexId":"70015011","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Estimating urban flood-frequency characteristics","docAbstract":"Methods in use by the U.S. Geological Survey to estimate flood-frequency characteristics for urban watersheds are compared with estimates based on the Soil Conservation Service TR-55 model. Data from four small urban watersheds in Georgia are used in the flood-peak and hydrograph comparisons.","conferenceTitle":"Proceedings of the 1989 National Conference on Hydraulic Engineering","conferenceDate":"14 August 1989 through 18 August 1989","conferenceLocation":"New Orleans, LA, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872627195","usgsCitation":"Jennings, M., Atkins, J., and Inman, E.J., 1989, Estimating urban flood-frequency characteristics, Proceedings of the 1989 National Conference on Hydraulic Engineering, New Orleans, LA, USA, 14 August 1989 through 18 August 1989, p. 516-521.","startPage":"516","endPage":"521","numberOfPages":"6","costCenters":[],"links":[{"id":224450,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0b6be4b0c8380cd526fa","contributors":{"authors":[{"text":"Jennings, M.E.","contributorId":76775,"corporation":false,"usgs":true,"family":"Jennings","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":369852,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Atkins, J.B.","contributorId":63842,"corporation":false,"usgs":true,"family":"Atkins","given":"J.B.","email":"","affiliations":[],"preferred":false,"id":369851,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Inman, E. J.","contributorId":44193,"corporation":false,"usgs":true,"family":"Inman","given":"E.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":369850,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70015410,"text":"70015410 - 1989 - Moderate-temperature zeolitic alteration in a cooling pyroclastic deposit","interactions":[],"lastModifiedDate":"2013-01-20T20:47:48","indexId":"70015410","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1213,"text":"Chemical Geology","active":true,"publicationSubtype":{"id":10}},"title":"Moderate-temperature zeolitic alteration in a cooling pyroclastic deposit","docAbstract":"The locally zeolitized Topopah Spring Member of the Paintbrush Tuff (13 Myr.), Yucca Mountain, Nevada, U.S.A., is part of a thick sequence of zeolitized pyroclastic units. Most of the zeolitized units are nonwelded tuffs that were altered during low-temperature diagenesis, but the distribution and textural setting of zeolite (heulandite-clinoptilolite) and smectite in the densely welded Topopah Spring tuff suggest that these hydrous minerals formed while the tuff was still cooling after pyroclastic emplacement and welding. The hydrous minerals are concentrated within a transition zone between devitrified tuff in the central part of the unit and underlying vitrophyre. Movement of liquid and convected heat along fractures from the devitrified tuff to the ritrophyre caused local devitrification and hydrous mineral crystallization. Oxygen isotope geothermometry of cogenetic quartz confirms the nondiagenetic moderate temperature origin of the hydrous minerals at temperatures of ??? 40-100??C, assuming a meteoric water source. The Topopah Spring tuff is under consideration for emplacement of a high-level nuclear waste repository. The natural rock alteration of the cooling pyroclastic deposit may be a good natural analog for repository-induced hydrothermal alteration. As a result of repository thermal loading, temperatures in the Topopah Spring vitrophyre may rise sufficiently to duplicate the inferred temperatures of natural zeolitic alteration. Heated water moving downward from the repository into the vitrophyre may contribute to new zeolitic alteration. ?? 1989.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Chemical Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/0009-2541(89)90100-9","issn":"00092541","usgsCitation":"Levy, S.S., and O’Neil, J.R., 1989, Moderate-temperature zeolitic alteration in a cooling pyroclastic deposit: Chemical Geology, v. 76, no. 3-4, p. 321-326, https://doi.org/10.1016/0009-2541(89)90100-9.","startPage":"321","endPage":"326","numberOfPages":"6","costCenters":[],"links":[{"id":266086,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0009-2541(89)90100-9"},{"id":224310,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"76","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5c86e4b0c8380cd6fd6e","contributors":{"authors":[{"text":"Levy, S. S.","contributorId":18630,"corporation":false,"usgs":true,"family":"Levy","given":"S.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":370876,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"O’Neil, J. R.","contributorId":69633,"corporation":false,"usgs":true,"family":"O’Neil","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":370877,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014999,"text":"70014999 - 1989 - Mitigating oil and gas impacts in coastal wetlands","interactions":[],"lastModifiedDate":"2012-03-12T17:18:58","indexId":"70014999","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Mitigating oil and gas impacts in coastal wetlands","docAbstract":"This abstract refers to technical recommendations for avoiding, minimizing, and restoring (i.e., mitigating) drilling site access impacts related to oil and gas activities in coastal wetlands through regulatory review, drawing mostly from the Louisiana experience. The two standard methods used to access wetland drilling locations are canals and roads, both of which require dredging. Each access method impacts wetland values and functions and each has been implicated directly and indirectly in wetland loss by converting marsh habitat to open water or upland habitat and by altering the local hydrologic regime. However, numerous regulatory management techniques exist and should be employed to avoids minimize, and restore canal and road-dump impacts.","largerWorkTitle":"Coastal Zone: Proceedings of the Symposium on Coastal and Ocean Management","conferenceTitle":"Coastal Zone '89: Proceedings of the Sixth Symposium on Coastal and Ocean Management","conferenceDate":"11 July 1989 through 14 July 1989","conferenceLocation":"Charleston, SC, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","usgsCitation":"Cahoon, D.R., and Holmes, J.C., 1989, Mitigating oil and gas impacts in coastal wetlands, in Coastal Zone: Proceedings of the Symposium on Coastal and Ocean Management, v. 2, no. pt2, Charleston, SC, USA, 11 July 1989 through 14 July 1989.","startPage":"1935","costCenters":[],"links":[{"id":224283,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","issue":"pt2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5b6fe4b0c8380cd6f564","contributors":{"authors":[{"text":"Cahoon, Donald R. 0000-0002-2591-5667 dcahoon@usgs.gov","orcid":"https://orcid.org/0000-0002-2591-5667","contributorId":3791,"corporation":false,"usgs":true,"family":"Cahoon","given":"Donald","email":"dcahoon@usgs.gov","middleInitial":"R.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":369807,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Holmes, Joseph C. Jr.","contributorId":90883,"corporation":false,"usgs":true,"family":"Holmes","given":"Joseph","suffix":"Jr.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":369808,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014998,"text":"70014998 - 1989 - Air permeability and trapped-air content in two soils","interactions":[],"lastModifiedDate":"2018-02-21T12:46:00","indexId":"70014998","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Air permeability and trapped-air content in two soils","docAbstract":"To improve understanding of hysteretic air permeability relations, a need exists for data on the water content dependence of air permeability, matric pressure, and air trapping (especially for wetting-drying cycles). To obtain these data, a special instrument was designed. The instrument is a combination of a gas permeameter (for air permeability determination), a suction plate apparatus (for retentivity curve determination), and an air pycnometer (for trapped-air-volume determination). This design allowed values of air permeability, matric pressure, and air trapping to be codetermined, i.e., determined at the same values of water content using the same sample and the same inflow-outflow boundaries. Such data were obtained for two nonswelling soils. The validity of the air permeability determinations was repeatedly confirmed by rigorous tests of Darcy's law. During initial drying from complete water saturation, supplementary measurements were made to assess the magnitude of gas slip. The extended Darcy equation accurately described the measured flux gradient relations for each condition of absolute gas pressure tested. Air permeability functions exhibited zero-permeability regions at high water contents as well as an abruptly appearing hysteresis at low water contents. Measurements in the zero-permeability regions revealed that the total amount of air in general exceeded the amount of trapped air. This indicates that the medium' s air space is partitioned into three measurable domains: through-flowing air, locally accessible air (i.e., air accessible from only one flow boundary), and trapped air. During repeated wetting and drying, the disappearance and reappearance of air permeability coincided closely with the reappearance and disappearance, respectively, of trapped air. The observed relation between critical features of the air permeability functions and those of the air-trapping functions suggest that water-based blockages play a significant role in the disruption of gas-phase connectivity and in preventing air flow, and must be considered in any effectual model of air permeability relations.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/WR025i009p01959","usgsCitation":"Stonestrom, D.A., and Rubin, J., 1989, Air permeability and trapped-air content in two soils: Water Resources Research, v. 25, no. 9, p. 1959-1969, https://doi.org/10.1029/WR025i009p01959.","productDescription":"11 p.","startPage":"1959","endPage":"1969","costCenters":[],"links":[{"id":224231,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"9","noUsgsAuthors":false,"publicationDate":"2010-07-09","publicationStatus":"PW","scienceBaseUri":"5059e918e4b0c8380cd480bf","contributors":{"authors":[{"text":"Stonestrom, David A. 0000-0001-7883-3385 dastones@usgs.gov","orcid":"https://orcid.org/0000-0001-7883-3385","contributorId":2280,"corporation":false,"usgs":true,"family":"Stonestrom","given":"David","email":"dastones@usgs.gov","middleInitial":"A.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":369806,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rubin, Jacob","contributorId":23918,"corporation":false,"usgs":true,"family":"Rubin","given":"Jacob","email":"","affiliations":[],"preferred":false,"id":369805,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70015402,"text":"70015402 - 1989 - Water transport in limestone by X-ray CAT scanning","interactions":[],"lastModifiedDate":"2012-03-12T17:18:54","indexId":"70015402","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Water transport in limestone by X-ray CAT scanning","docAbstract":"The transport of water through the interior of Salem limestone test briquettes can be dynamically monitored by computer aided tomography (commonly called CAT scanning in medical diagnostics). Most significantly, unless evaporation from a particular face of the briquette is accelerated by forced air flow (wind simulation), the distribution of water in the interior of the briquette remains more or less uniform throughout the complete drying cycle. Moreover, simulated solar illumination of the test briquette does not result in the production of significant water gradients in the briquette under steady-state drying conditions.","conferenceTitle":"Proceedings of the Sessions Related to Structural Materials at Structures Congress '89","conferenceDate":"1 May 1989 through 5 May 1989","conferenceLocation":"San Francisco, CA, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872626997","usgsCitation":"Mossoti, V.G., and Castanier, L.M., 1989, Water transport in limestone by X-ray CAT scanning, Proceedings of the Sessions Related to Structural Materials at Structures Congress '89, San Francisco, CA, USA, 1 May 1989 through 5 May 1989, p. 226-235.","startPage":"226","endPage":"235","numberOfPages":"10","costCenters":[],"links":[{"id":224252,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bcc9ae4b08c986b32dc27","contributors":{"authors":[{"text":"Mossoti, Victor G.","contributorId":42486,"corporation":false,"usgs":true,"family":"Mossoti","given":"Victor","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":370861,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Castanier, Louis M.","contributorId":21823,"corporation":false,"usgs":true,"family":"Castanier","given":"Louis","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":370860,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014992,"text":"70014992 - 1989 - Extraction of terrain features from digital elevation models","interactions":[],"lastModifiedDate":"2012-03-12T17:18:59","indexId":"70014992","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Extraction of terrain features from digital elevation models","docAbstract":"Digital elevation models (DEMs) are being used to determine variable inputs for hydrologic models in the Delaware River basin. Recently developed software for analysis of DEMs has been applied to watershed and streamline delineation. The results compare favorably with similar delineations taken from topographic maps. Additionally, output from this software has been used to extract other hydrologic information from the DEM, including flow direction, channel location, and an index describing the slope and shape of a watershed.","conferenceTitle":"Proceedings of the 1989 National Conference on Hydraulic Engineering","conferenceDate":"14 August 1989 through 18 August 1989","conferenceLocation":"New Orleans, LA, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872627195","usgsCitation":"Price, C.V., Wolock, D.M., and Ayers, M.A., 1989, Extraction of terrain features from digital elevation models, Proceedings of the 1989 National Conference on Hydraulic Engineering, New Orleans, LA, USA, 14 August 1989 through 18 August 1989, p. 845-850.","startPage":"845","endPage":"850","numberOfPages":"6","costCenters":[],"links":[{"id":224124,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0e60e4b0c8380cd5340f","contributors":{"authors":[{"text":"Price, Curtis V. 0000-0002-4315-3539 cprice@usgs.gov","orcid":"https://orcid.org/0000-0002-4315-3539","contributorId":983,"corporation":false,"usgs":true,"family":"Price","given":"Curtis","email":"cprice@usgs.gov","middleInitial":"V.","affiliations":[{"id":562,"text":"South Dakota Water Science Center","active":true,"usgs":true}],"preferred":true,"id":369790,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wolock, David M. 0000-0002-6209-938X dwolock@usgs.gov","orcid":"https://orcid.org/0000-0002-6209-938X","contributorId":540,"corporation":false,"usgs":true,"family":"Wolock","given":"David","email":"dwolock@usgs.gov","middleInitial":"M.","affiliations":[{"id":503,"text":"Office of Water Quality","active":true,"usgs":true},{"id":37778,"text":"WMA - Integrated Modeling and Prediction Division","active":true,"usgs":true},{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true},{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true},{"id":353,"text":"Kansas Water Science Center","active":false,"usgs":true}],"preferred":true,"id":369789,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ayers, Mark A.","contributorId":84730,"corporation":false,"usgs":true,"family":"Ayers","given":"Mark","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":369791,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70014984,"text":"70014984 - 1989 - Geographic information system/watershed model interface","interactions":[],"lastModifiedDate":"2012-03-12T17:19:00","indexId":"70014984","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Geographic information system/watershed model interface","docAbstract":"Geographic information systems allow for the interactive analysis of spatial data related to water-resources investigations. A conceptual design for an interface between a geographic information system and a watershed model includes functions for the estimation of model parameter values. Design criteria include ease of use, minimal equipment requirements, a generic data-base management system, and use of a macro language. An application is demonstrated for a 90.1-square-kilometer subbasin of the Patuxent River near Unity, Maryland, that performs automated derivation of watershed parameters for hydrologic modeling.","conferenceTitle":"Proceedings of the 1989 National Conference on Hydraulic Engineering","conferenceDate":"14 August 1989 through 18 August 1989","conferenceLocation":"New Orleans, LA, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872627195","usgsCitation":"Fisher, G.T., 1989, Geographic information system/watershed model interface, Proceedings of the 1989 National Conference on Hydraulic Engineering, New Orleans, LA, USA, 14 August 1989 through 18 August 1989, p. 851-856.","startPage":"851","endPage":"856","numberOfPages":"6","costCenters":[],"links":[{"id":224011,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a176de4b0c8380cd554d4","contributors":{"authors":[{"text":"Fisher, Gary T. gtfisher@usgs.gov","contributorId":4931,"corporation":false,"usgs":true,"family":"Fisher","given":"Gary","email":"gtfisher@usgs.gov","middleInitial":"T.","affiliations":[],"preferred":true,"id":369770,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70014971,"text":"70014971 - 1989 - Discharge of sediment in channelized alluvial streams","interactions":[],"lastModifiedDate":"2013-02-19T14:23:16","indexId":"70014971","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3718,"text":"Water Resources Bulletin","printIssn":"0043-1370","active":true,"publicationSubtype":{"id":10}},"title":"Discharge of sediment in channelized alluvial streams","docAbstract":"Approximately 400 million cubic feet of channel sediments have been delivered to the Mississippi River from the Obion-Forked Deer River system in the last 20 years. The discharge of sediment from these channelized networks in West Tennessee varies systematically with the stage of channel evolution. Maximum bed-material discharges occur during the initial phases of degradation (Stage III). In contrast, yields of suspended-sediment peak during the threshold stage (Stage IV: large-scale mass wasting) as sediments are delivered from main-channel banks and tributary beds. Suspended-sediment yields then decrease as aggradation (Stage V) becomes the dominant trend in the main channels, but remains relatively high through restabilization (Stage VI) because of continued degradation and widening in the tributaries. Bed-material discharges decrease from the degradation stage (III) to Stage V, and increase again during restabilization (Stage VI) because secondary aggradation increases gradients and incipient meandering serves to rework bed sediments. Additional aspects of the subject are discussed.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Water Resources Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Water Resources Association","doi":"10.1111/j.1752-1688.1989.tb01330.x","issn":"00431370","usgsCitation":"Simon, A., 1989, Discharge of sediment in channelized alluvial streams: Water Resources Bulletin, v. 25, no. 6, p. 1177-1188, https://doi.org/10.1111/j.1752-1688.1989.tb01330.x.","startPage":"1177","endPage":"1188","numberOfPages":"12","costCenters":[],"links":[{"id":267746,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1752-1688.1989.tb01330.x"},{"id":223794,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"6","noUsgsAuthors":false,"publicationDate":"2007-06-08","publicationStatus":"PW","scienceBaseUri":"505a01e2e4b0c8380cd4fd90","contributors":{"authors":[{"text":"Simon, Andrew","contributorId":78334,"corporation":false,"usgs":true,"family":"Simon","given":"Andrew","email":"","affiliations":[],"preferred":false,"id":369741,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70016119,"text":"70016119 - 1989 - Data-collection program for Pamlico River Estuary model calibration and validation","interactions":[],"lastModifiedDate":"2012-03-12T17:18:47","indexId":"70016119","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Data-collection program for Pamlico River Estuary model calibration and validation","docAbstract":"An investigation is being conducted to collect and interpret continuous records relating to the flow characteristics of the Pamlico River Estuary, North Carolina, and to calibrate and validate a numerical model of estuarine hydrodynamics. The study reach is 50 kilometers long and ranges in width from 330 meters at the upstream boundary to 6.4 kilometers at the downstream end. Water levels are recorded at 6 locations along the estuary; daily water-level range is typically greater at the head of the estuary than at the mouth, most likely due to upstream narrowing of the channel. Water-quality data are recorded at 14 locations. These data indicate that saline waters with low dissolved oxygen concentrations move upstream along the bottom of the estuary. Point velocities were monitored for 3 weeks at 7 locations; vertical profiles of horizontal velocity were made at the boundaries of the study reach for about 32 hours. Local tributary inflows and wind speed and direction are also being determined.","conferenceTitle":"Estuarine and Coastal Modeling - Proceedings of the Conference","conferenceDate":"15 November 1989 through 17 November 1989","conferenceLocation":"Newport, RI, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"Boston, MA, United States","isbn":"0872627586","usgsCitation":"Bales, J.D., 1989, Data-collection program for Pamlico River Estuary model calibration and validation, Estuarine and Coastal Modeling - Proceedings of the Conference, Newport, RI, USA, 15 November 1989 through 17 November 1989, p. 492-501.","startPage":"492","endPage":"501","numberOfPages":"10","costCenters":[],"links":[{"id":223349,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fdd1e4b0c8380cd4e961","contributors":{"authors":[{"text":"Bales, Jerad D. 0000-0001-8398-6984 jdbales@usgs.gov","orcid":"https://orcid.org/0000-0001-8398-6984","contributorId":683,"corporation":false,"usgs":true,"family":"Bales","given":"Jerad","email":"jdbales@usgs.gov","middleInitial":"D.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":5058,"text":"Office of the Chief Scientist for Water","active":true,"usgs":true}],"preferred":true,"id":372598,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70014952,"text":"70014952 - 1989 - Monitoring and design of stormwater control basins","interactions":[],"lastModifiedDate":"2012-03-12T17:18:50","indexId":"70014952","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Monitoring and design of stormwater control basins","docAbstract":"The City of Austin, Texas, has played a pioneering role in the control of urban nonpoint source pollution by enacting watershed and stormwater ordinances, overseeing detailed monitoring programs, and improving design criteria for stormwater control methods. The effectiveness of the methods used in Austin, and perhaps in other areas of the United States, to protect urban water resources has not yet been fully established. Therefore, detailed monitoring programs capable of quantitatively determining the effectiveness of control methods and of stormwater ordinances, are required. The purpose of this report is to present an overview of the City of Austin's stormwater monitoring program, including previous monitoring programs with the U.S. Environmental Protection Agency and the U.S. Geological Survey, and to describe the relation of monitoring to design of stormwater control basins.","conferenceTitle":"Proceedings of an Engineering Foundation Conference on Current Practice and Design Criteria for Urban Quality Control","conferenceDate":"10 July 1988 through 15 July 1988","conferenceLocation":"Potosi, MO, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872626954","usgsCitation":"Veenhuis, J., Parrish, J., and Jennings, M., 1989, Monitoring and design of stormwater control basins, Proceedings of an Engineering Foundation Conference on Current Practice and Design Criteria for Urban Quality Control, Potosi, MO, USA, 10 July 1988 through 15 July 1988, p. 224-238.","startPage":"224","endPage":"238","numberOfPages":"15","costCenters":[],"links":[{"id":224444,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5d87e4b0c8380cd7042a","contributors":{"authors":[{"text":"Veenhuis, J.E.","contributorId":6850,"corporation":false,"usgs":true,"family":"Veenhuis","given":"J.E.","affiliations":[],"preferred":false,"id":369690,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Parrish, J.H.","contributorId":82465,"corporation":false,"usgs":true,"family":"Parrish","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":369692,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jennings, M.E.","contributorId":76775,"corporation":false,"usgs":true,"family":"Jennings","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":369691,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70015686,"text":"70015686 - 1989 - Spatial and temporal variability in South San Francisco Bay (USA). II. Temporal changes in salinity, suspended sediments, and phytoplankton biomass and productivity over tidal time scales","interactions":[],"lastModifiedDate":"2023-10-05T17:40:19.323209","indexId":"70015686","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1587,"text":"Estuarine, Coastal and Shelf Science","active":true,"publicationSubtype":{"id":10}},"title":"Spatial and temporal variability in South San Francisco Bay (USA). II. Temporal changes in salinity, suspended sediments, and phytoplankton biomass and productivity over tidal time scales","docAbstract":"Short-term variability of a conservative quantity (salinity) and two nonconservative quantities (chlorophyll a, suspended particulate matter) was measured across a sampling grid in the South San Francisco Bay estuary. Surface measurements were made every 2 h at each of 29 (or 38) sites, on four different dates representing a range of tidal current regimes over the neap-spring cycle. From the distribution of phytoplankton biomass (chlorophyll a) and turbidity (SPM), we also estimated daily productivity and its variability at each site over the four tide cycles. As a general rule, both chlorophyll a and SPM concentrations varied about 50% from their tidal-means. However derived daily productivity varied less (about 15% from the mean) over a tidal cycle. Both chlorophyll a and SPM varied periodically with tidal stage (increasing on ebbing currents), suggesting that the short-term variability results simply from the tidal advection of spatial gradients. Calculation of the advective flux (current speed times spatial gradient) was used to test this hypothesis. For surface salinity, most (70–80%) of the observed intratidal variability was correlated with the tidal flux, both in the deep channel and over the lateral shoals. However the short-term variability of SPM concentration was only weakly correlated with the advective flux, indicating that local sources of SPM (resuspension) are important. Hourly changes in chlorophyll a were highly correlated with the advective flux in the deep channel (implying that phytoplankton biomass is conservative over short time scales there); however, chlorophyll a variability was only weakly correlated with the advective flux over the shoals, implying that local sources/sinks are important there. Hence, the magnitude and mechanisms of intratidal variability differ among constituents and among bathymetric regimes in this estuary.