Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

16458 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 195, results 4851 - 4875

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Climate warming-induced intensification of the hydrologic cycle: A review of the published record and assessment of the potential impacts on agriculture
Thomas G. Huntington
2010, Advances in Agronomy (109) 1-53
Climate warming is expected to intensify and accelerate the global hydrologic cycle resulting in increases in evaporation, evapotranspiration (ET), atmospheric water-vapor content, and precipitation. The strength of the hydrologic response, or sensitivity of the response for a given degree of warming, is a critical outstanding question in climatology and hydrology....
Hillslope hydrologic connectivity controls riparian groundwater turnover: Implications of catchment structure for riparian buffering and stream water sources
Kelsey G. Jencso, Brian L. McGlynn, Michael N. Gooseff, Kenneth E. Bencala, Steven M. Wondzell
2010, Water Resources Research (46)
Hydrologic connectivity between catchment upland and near stream areas is essential for the transmission of water, solutes, and nutrients to streams. However, our current understanding of the role of riparian zones in mediating landscape hydrologic connectivity and the catchment scale export of water and solutes is limited. We tested the...
Database of groundwater levels and hydrograph descriptions for the Nevada Test Site area, Nye County, Nevada
Peggy E. Elliott, Joseph M. Fenelon
2010, Data Series 533
A database containing water levels measured from wells in and near areas of underground nuclear testing at the Nevada Test Site since 1941 was developed. The database provides information for each well including well construction, borehole lithology, units contributing water to the well, and general site remarks. Water-level information...
Historical ice-out dates for 29 lakes in New England, 1807-2008
Glenn A. Hodgkins
2010, Open-File Report 2010-1214
Ice-out dates for lakes are an important hydrologic data series for climate-change research. Historical ice-out dates for 29 lakes in New England from 1807 through 2008 were compiled and are presented in this report. Five lakes have more than 160 years of data and another 14 have more than 100...
Development of a conceptual model of groundwater flow, Chesterfield County, South Carolina
Bruce G. Campbell, James Landmeyer
2010, Conference Paper, 2010 South Carolina Water Resources Conference
Chesterfield County is located in the north central part of South Carolina (SC) and is adjacent to the North Carolina border. The County lies along the Fall Line, the geologic boundary between the Atlantic Coastal Plain (ACP) and Piedmont physiographic provinces. Between 2000 and 2007, the population increased from 42,768...
Hydrogeology and groundwater availability in Clarke County, Virginia
David L. Nelms, Roger M. Moberg
2010, Scientific Investigations Report 2010-5112
The prolonged drought between 1999 and 2002 drew attention in Clarke County, Virginia, to the quantity and sustainability of its groundwater resources. The groundwater flow systems of the county are complex and are controlled by the extremely folded and faulted geology that underlies the county. A study was conducted between...
Data mining for water resource management part 2 - methods and approaches to solving contemporary problems
Edwin A. Roehl, Paul Conrads
2010, Conference Paper, Proceedings of the 2010 South Carolina Water Resources Conference
This is the second of two papers that describe how data mining can aid natural-resource managers with the difficult problem of controlling the interactions between hydrologic and man-made systems. Data mining is a new science that assists scientists in converting large databases into knowledge, and is uniquely able to leverage...
Importance of record length with respect to estimating the 1-percent chance flood
Toby D. Feaster
2010, Conference Paper, 2010 South Carolina Water Resources Conference
U.S. Geological Survey (USGS) streamflow gages have been established in every State in the Nation, Puerto Rico, and the Trust Territory of the Pacific Islands. From these st reamflow records, estimates of the magnitude and frequency of floods are often developed and used to design transportation and water- conveyance structures...
Map correlation method: Selection of a reference streamgage to estimate daily streamflow at ungaged catchments
Stacey A. Archfield, Richard M. Vogel
2010, Water Resources Research (46)
Daily streamflow time series are critical to a very broad range of hydrologic problems. Whereas daily streamflow time series are readily obtained from gaged catchments, streamflow information is commonly needed at catchments for which no measured streamflow information exists. At ungaged catchments, methods to estimate daily streamflow time series typically...
Occurrence of antibiotic compounds in source water and finished drinking water from the upper Scioto River Basin, Ohio, 2005-6
Dennis P. Finnegan, Laura A. Simonson, Michael T. Meyer
2010, Scientific Investigations Report 2010-5083
The occurrence of antibiotics in surface water and groundwater in urban basins has become a topic of increasing interest in recent years. Little is known about the occurrence, fate, or transport of these compounds and the possible health effects in humans and aquatic life. The U.S. Geological Survey, in cooperation...
Simulation of groundwater flow and effects of groundwater irrigation on stream base flow in the Elkhorn and Loup River basins, Nebraska, 1895-2055: Phase Two
Jennifer S. Stanton, Steven M. Peterson, Michael N. Fienen
2010, Scientific Investigations Report 2010-5149
Regional groundwater-flow simulations for a 30,000-square-mile area of the High Plains aquifer, referred to collectively as the Elkhorn-Loup Model, were developed to predict the effects of groundwater irrigation on stream base flow in the Elkhorn and Loup River Basins, Nebraska. Simulations described the stream-aquifer system from predevelopment through 2005 [including...
The potential influence of changing climate on the persistence of salmonids of the inland west
A.L. Haak, J.E. Williams, D. Isaak, A. Todd, C.C. Muhlfeld, J. L. Kershner, R. E. Gresswell, S. W. Hostetler, H.M. Neville
2010, Open-File Report 2010-1236
The Earth's climate warmed steadily during the 20th century, and mean annual air temperatures are estimated to have increased by 0.6°C (Intergovernmental Panel on Climate Change, 2007). Although many cycles of warming and cooling have occurred in the past, the most recent warming period is unique in its rate and...
Occurrence and sources of Escherichia coli in metropolitan St. Louis streams, October 2004 through September 2007
Donald H. Wilkison, Jerri V. Davis
2010, Scientific Investigations Report 2010-5150
The occurrence and sources of Escherichia coli (E. coli), one of several fecal indicator bacteria, in metropolitan St. Louis streams known to receive nonpoint source runoff, occasional discharges from combined and sanitary sewers, and treated wastewater effluent were investigated from October 2004 through September 2007. Three Missouri River sites, five Mississippi...
Quality of surface water in Missouri, water year 2009
Miya N. Barr
2010, Open-File Report 2010-1233
The U.S. Geological Survey, in cooperation with the Missouri Department of Natural Resources, designs and operates a series of monitoring stations on streams throughout Missouri known as the Ambient Water-Quality Monitoring Network. During the 2009 water year (October 1, 2008, through September 30, 2009), data were collected at 75 stations-69...
Development of characterization technology for fault zone hydrology
K. Karasaki, Celia Tiemi Onishi, Erika Gasperikova, Junichi Goto, Hiroyuki Tsuchi, Tadashi Miwa, Keiichi Ueta, Kenzo Kiho, Kimio Miyakawa
2010, Conference Paper, Conference proceedings: International Conference on Environmental Remediation and Radioactive Waste Management
Several deep trenches were cut, and a number of geophysical surveys were conducted across the Wildcat Fault in the hills east of Berkeley, California. The Wildcat Fault is believed to be a strike-slip fault and a member of the Hayward Fault System, with over 10 km of displacement. So far,...
Effects of light and nutrients on seasonal phytoplankton succession in a temperate eutrophic coastal lagoon
Jeana L. Drake, Edward J. Carpenter, Mary Cousins, Kara L. Nelson, Alejandro Guido-Zarate, Keith A. Loftin
2010, Hydrobiologia (654) 177-192
Rodeo Lagoon, a low-salinity coastal lagoon in the Golden Gate National Recreation Area, California, United States, has been identified as an important ecosystem due to the presence of the endangered goby (Eucyclogobius newberri). Despite low anthropogenic impacts, the lagoon exhibits eutrophic conditions and supports annual episodes of very...
Determination of biologically significant hydrologic condition metrics in urbanizing watersheds: an empirical analysis over a range of environmental settings
Jeffrey J. Steuer, Krista A. Stensvold, Mark B. Gregory
2010, Hydrobiologia (654) 27-55
We investigated the relations among 83 hydrologic condition metrics (HCMs) and changes in algal, invertebrate, and fish communities in five metropolitan areas across the continental United States. We used a statistical approach that employed Spearman correlation and regression tree analysis to identify five HCMs that are strongly associated with observed...
An update of hydrologic conditions and distribution of selected constituents in water, Snake River Plain aquifer and perched groundwater zones, Idaho National Laboratory, Idaho, emphasis 2006-08
Linda C. Davis
2010, Scientific Investigations Report 2010-5197
Since 1952, radiochemical and chemical wastewater discharged to infiltration ponds (also called percolation ponds), evaporation ponds, and disposal wells at the Idaho National Laboratory (INL) has affected water quality in the eastern Snake River Plain aquifer and perched groundwater zones underlying the INL. The U.S. Geological Survey, in cooperation with...
Using selective drainage methods to hydrologically-condition and hydrologically-enforce lidar-derived surface flow
Sandra K. Poppenga, Bruce Worstell, Jason M. Stoker, Susan Greenlee
2010, Conference Paper, Remote sensing and hydrology
The methods to extract surface flow from coarse elevation data are well documented; however, the methods to extract surface flow from high-resolution, high-vertical accuracy digital elevation models (DEMs) derived from light detection and ranging (lidar) are less documented, but yet more complex. As lidar data are increasingly used to generate...
Database for the geologic map of the Bend 30- x 60-minute quadrangle, central Oregon
Richard D. Koch, David W. Ramsey, David R. Sherrod, Edward M. Taylor, Mark L. Ferns, William E. Scott, Richard M. Conrey, Gary A. Smith
2010, Data Series 303
The Bend 30- x 60-minute quadrangle has been the locus of volcanism, faulting, and sedimentation for the past 35 million years. It encompasses parts of the Cascade Range and Blue Mountain geomorphic provinces, stretching from snowclad Quaternary stratovolcanoes on the west to bare rocky hills and sparsely forested juniper plains...
Geographic information system datasets of regolith-thickness data, regolith-thickness contours, raster-based regolith thickness, and aquifer-test and specific-capacity data for the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado
L. Rick Arnold
2010, Data Series 507
These datasets were compiled in support of U.S. Geological Survey Scientific-Investigations Report 2010-5082-Hydrogeology and Steady-State Numerical Simulation of Groundwater Flow in the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado. The datasets were developed by the U.S. Geological Survey in cooperation with the Lost Creek Ground...
Development and analysis of a meteorological database, Argonne National Laboratory, Illinois
Thomas M. Over, Thomas H. Price, Audrey L. Ishii
2010, Open-File Report 2010-1220
A database of hourly values of air temperature, dewpoint temperature, wind speed, and solar radiation from January 1, 1948, to September 30, 2003, primarily using data collected at the Argonne National Laboratory station, was developed for use in continuous-time hydrologic modeling in northeastern Illinois. Missing and apparently erroneous data values...
Water quality and hydrology of the Silver River Watershed, Baraga County, Michigan, 2005-08
Thomas L. Weaver, Daniel J. Sullivan, Cynthia M. Rachol, James M. Ellis
2010, Scientific Investigations Report 2010-5050
The Silver River Watershed comprises about 69 square miles and drains part of northeastern Baraga County, Michigan. For generations, tribal members of the Keweenaw Bay Indian Community have hunted and fished in the watershed. Tribal government and members of Keweenaw Bay Indian Community are concerned about the effect of any...
Endocrine active chemicals and endocrine disruption in Minnesota streams and lakes: Implications for aquatic resources, 1994-2008
Kathy Lee, Heiko L. Schoenfuss, Larry B. Barber, Jeff H. Writer, Vicki Blazer, Richard L. Keisling, Mark L. Ferrey
2010, Scientific Investigations Report 2010-5107
The U.S. Geological Survey, in cooperation with St. Cloud State University, Minnesota Department of Health, Minnesota Pollution Control Agency, Minnesota Department of Natural Resources, Metropolitan Council Environmental Services, and the University of Minnesota, has conducted field monitoring studies and laboratory research to determine the presence of endocrine active chemicals and...
Near-field receiving water monitoring of trace metals and a benthic community near the Palo Alto Regional Water Quality Control Plant in South San Francisco Bay, California; 2009
Jessica Dyke, Janet K. Parchaso, Janet K. Thompson, Daniel J. Cain, Samuel N. Luoma, Michelle I. Hornberger
2010, Open-File Report 2010-1188
Results reported herein include trace element concentrations in sediment and in the clam Macoma petalum (formerly reported as Macoma balthica(Cohen and Carlton, 1995)), clam reproductive activity, and benthic macroinvertebrate community structure for a mudflat one kilometer south of the discharge of the Palo Alto Regional Water Quality Control Plant (PARWQCP) in South San...