Publications
This list of Water Resources Mission Area publications includes both official USGS publications and journal articles authored by our scientists. A searchable database of all USGS publications can be accessed at the USGS Publications Warehouse.
Filter Total Items: 18465
Macroinvertebrate assemblages on woody debris and their relations with environmental variables in the lower Sacramento and San Joaquin River drainages, California
Data from 25 sites were used to evaluate associations between macroinvertebrate assemblages on large woody debris (snags) and environmental variables in the lower San Joaquin and Sacramento River drainages in California as part of the U.S. Geological Survey's National Water Quality Assessment Program. Samples were collected from 1993 to 1995 in the San Joaquin River drainage and in 1996 and 1997 i
Authors
L. R. Brown, J. T. May
Atrazine adsorption and colloid-facilitated transport through the unsaturated zone
One explanation for unexpectedly widespread ground water contamination from atrazine (2-chloro-4-ethylamino-6-isopropylamino-s-triazine) may be the occurrence of colloid-facilitated transport, whereby the dissolved herbicide becomes adsorbed to mobile colloids that migrate through preferential flow-paths in the soil zone and into the ground water. The objectives of this study were to determine the
Authors
Lori A. Sprague, J.S. Herman, G.M. Hornberger, A.L. Mills
Relationship of wooded riparian zones and runoff potential to fish community composition in agricultural streams
The relationship of fish community composition to riparian cover and runoff potential was investigated in 20 streams in the agricultural Minnesota River Basin during the summer of 1997. Analysis of variance indicated significant differences in fish community composition due to both riparian cover (wooded versus open) and runoff potential (high or low). Streams with wooded riparian zones had higher
Authors
J. C. Stauffer, R. M. Goldstein, R.M. Newman
Predicting the probability of detecting organochlorine pesticides and polychlorinated biphenyls in stream systems on the basis of land use in the Pacific Northwest, USA
We analyzed streambed sediment and fish tissue (Cottus sp.) at 30 sites in the Puget Sound and Willamette basins in Washington and Oregon, USA, respectively, for organochlorine pesticides and polychlorinated biphenyls (PCBs). The study was designed to determine the concentrations of organochlorine pesticides and PCBs in fish tissue and sediment by land use within these basins and to develop an emp
Authors
R. W. Black, A.L. Haggland, F.D. Voss
Pesticides in the atmosphere of the Mississippi River Valley, part II: Air
Weekly composite air samples were collected from early April through to mid-September 1995 at three paired urban and agricultural sites along the Mississippi River region of the Midwestern United States. The paired sampling sites were located in Mississippi, Iowa, and Minnesota. A background site, removed from dense urban and agricultural areas, was located on the shore of Lake Superior in Michiga
Authors
W.T. Foreman, M.S. Majewski, D. A. Goolsby, F.W. Wiebe, R.H. Coupe
Occurrence of pesticides in rain and air in urban and agricultural areas of Mississippi, April-September 1995
In April 1995, the US Geological Survey began a study to determine the occurrence and temporal distribution of 49 pesticides and pesticide metabolites in air and rain samples from an urban and an agricultural sampling site in Mississippi. The study was a joint effort between the National Water-Quality Assessment and the Toxic Substances Programs and was part of a larger study examining the occurre
Authors
R.H. Coupe, M.A. Manning, W.T. Foreman, D. A. Goolsby, M.S. Majewski
Occurrence and distribution of microbiological indicators in groundwater and stream water
A total of 136 stream water and 143 groundwater samples collected in five important hydrologic systems of the United States were analyzed for microbiological indicators to test monitoring concepts in a nationally consistent program. Total coliforms were found in 99%, Escherichia coli in 97%, and Clostridium perfringens in 73% of stream water samples analyzed for each bacterium. Total coliforms wer
Authors
Donna S. Francy, Dennis R. Helsel, Rebecca A. Nally
Sources and yields of dissolved carbon in northern Wisconsin stream catchments with differing amounts of Peatland
In five tributary streams (four inflowing and one outflowing) of 1600-ha Trout Lake in northern Wisconsin, USA, we examined factors that can affect the magnitude of stream flow and transport of dissolved organic and inorganic carbon (DOC and DIC) through the streams to the lake. One catchment, the Allequash Creek basin, was investigated in more detail to describe the dynamics of carbon flow and to
Authors
John F. Elder, Nancy B. Rybicki, Virginia Carter, Victoria Weintraub
The vulnerability of wetlands to climate change: A hydrologic landscape perspective
The vulnerability of wetlands to changes in climate depends on their position within hydrologic landscapes. Hydrologic landscapes are defined by the flow characteristics of ground water and surface water and by the interaction of atmospheric water, surface water, and ground water for any given locality or region. Six general hydrologic landscapes are defined; mountainous, plateau and high plain, b
Authors
Thomas C. Winter
Fractured-aquifer hydrogeology from geophysical logs: Brunswick group and Lockatong Formation, Pennsylvania
The Brunswick Group and the underlying Lockatong Formation are composed of lithified Mesozoic sediments that constitute part of the Newark Basin in southeastern Pennsylvania. These fractured rocks form an important regional aquifer that consists of gradational sequences of shale, siltstone, and sandstone, with fluid transport occurring primarily in fractures. An extensive suite of geophysical logs
Authors
Roger H. Morin, Lisa A. Senior, Edward R. Decker
Chlorofluorocarbon dating of herbicide-containing well waters in Fresno and Tulare counties, California
Simazine, diuron, and bromacil are the most frequently detected currently registered pesticides in California groundwater. These herbicides have been used for several decades in Fresno and Tulare counties, California; however, previous data are inadequate to determine whether the detections are a result of recent or historical applications (i.e., within the last decade, or 20-30 yr ago). Chloroflu
Authors
F. Spurlock, K. Burow, N. Dubrovsky
An evaluation of the Wyoming Gauge System for snowfall measurement
The Wyoming snow fence (shield) has been widely used with precipitation gauges for snowfall measurement at more than 25 locations in Alaska since the late 1970s. This gauge's measurements have been taken as the reference for correcting wind‐induced gauge undercatch of snowfall in Alaska. Recently, this fence (shield) was tested in the World Meteorological Organization Solid Precipitation Measureme
Authors
Daqing Yang, Douglas L. Kane, Larry D. Hinzman, Barry E. Goodison, John R. Metcalfe, Paul Y.T. Louie, George H. Leavesley, Douglas G. Emerson, Clayton L. Hanson