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Page 591, results 14751 - 14775

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Not all publications have extents, not all extents are completely accurate
Effect of land cover and use on dry season river runoff, runoff efficiency, and peak storm runoff in the seasonal tropics of Central Panama
Fred L. Ogden, Trey D. Crouch, Robert F. Stallard, Jefferson S. Hall
2013, Water Resources Research (49) 8443-8462
A paired catchment methodology was used with more than 3 years of data to test whether forests increase base flow in the dry season, despite reduced annual runoff caused by evapotranspiration (the “sponge-effect hypothesis”), and whether forests reduce maximum runoff rates and totals during storms. The three study catchments were:...
Hydrologic monitoring and selected hydrologic and environmental studies by the U.S. Geological Survey in Georgia, 2011–2013
John S. Clarke, Melinda J. Dalton (compiler)
2013, Open-File Report 2013-1278
This compendium of papers describes results of hydrologic monitoring and hydrologic and environmental studies completed by the U.S. Geological Survey (USGS) in Georgia during 2011–2013. The USGS addresses a wide variety of water issues in the State of Georgia working with local, State, and Federal partners. As the primary Federal...
Flood-inundation maps for the Elkhart River at Goshen, Indiana
Kellan R. Strauch
2013, Scientific Investigations Map 3269
The U.S. Geological Survey (USGS), in cooperation with the Indiana Office of Community and Rural Affairs, created digital flood-inundation maps for an 8.3-mile reach of the Elkhart River at Goshen, Indiana, extending from downstream of the Goshen Dam to downstream from County Road 17. The inundation maps, which can be...
Occurrence of fungicides and other pesticides in surface water, groundwater, and sediment from three targeted-use areas in the United States, 2009
James L. Orlando, Kelly L. Smalling, Timothy J. Reilly, Adam Boehlke, Michael T. Meyer, Kathryn Kuivila
2013, Data Series 797
Surface-water, groundwater, and suspended- and bedsediment samples were collected in three targeted-use areas in the United States where potatoes were grown during 2009 and analyzed for an extensive suite of fungicides and other pesticides by gas chromatograph/mass spectrometry and liquid chromatography with tandem mass spectrometry. Fungicides were detected in all...
Changes in nitrogen loading to the Northeast Creek Estuary, Bar Harbor, Maine, 2000 to 2010
Martha G. Nielsen
2013, Open-File Report 2013-1256
Since 1999, the U.S. Geological Survey and the National Park Service have been monitoring land use and nitrogen loading in a 26.3-square-kilometer (10-square-mile) estuarine watershed at Acadia National Park, Mount Desert Island, Maine. The initial study linking land use and nitrogen loads entering the Northeast Creek estuary was completed in...
First evidence of grass carp recruitment in the Great Lakes Basin
Duane Chapman, J. Jeremiah Davis, Jill A. Jenkins, Patrick M. Kocovsky, Jeffrey G. Miner, John Farver, P. Ryan Jackson
2013, Journal of Great Lakes Research (39) 547-554
We use aging techniques, ploidy analysis, and otolith microchemistry to assess whether four grass carp Ctenopharyngodon idella captured from the Sandusky River, Ohio were the result of natural reproduction within the Lake Erie Basin. All four fish were of age 1 +. Multiple lines of evidence indicate that these fish...
Geophysical-log and hydraulic-test analyses of groundwater-production wells at the Hannahville Indian Community, Menominee County, Michigan
E. Randall Bayless, J. Alton Anderson, David C. Lampe, John H. Williams
2013, Scientific Investigations Report 2013-5172
The U.S. Geological Survey, in cooperation with the Hannahville Indian Community, evaluated the geohydrology of the bedrock formations and hydraulic properties of groundwater-production wells at the Hannahville Indian Community in Menominee County, Michigan. Geophysical logs were collected from five wells at two sites during September 2012. The logs were analyzed...
Estimation of total nitrogen and total phosphorus in streams of the Middle Columbia River Basin (Oregon, Washington, and Idaho) using SPARROW models, with emphasis on the Yakima River Basin, Washington
Henry M. Johnson, Robert W. Black, Daniel R. Wise
2013, Scientific Investigations Report 2013-5199
The watershed model SPARROW (Spatially Related Regressions on Watershed attributes) was used to predict total nitrogen (TN) and total phosphorus (TP) loads and yields for the Middle Columbia River Basin in Idaho, Oregon, and Washington. The new models build on recently published models for the entire Pacific Northwest, and provide...
Extreme ground motions and Yucca Mountain
Thomas C. Hanks, Norman A. Abrahamson, Jack W. Baker, David M. Boore, Mark Board, James N. Brune, C. Allin Cornell, John W. Whitney
2013, Open-File Report 2013-1245
Yucca Mountain is the designated site of the underground repository for the United States' high-level radioactive waste (HLW), consisting of commercial and military spent nuclear fuel, HLW derived from reprocessing of uranium and plutonium, surplus plutonium, and other nuclear-weapons materials. Yucca Mountain straddles the western boundary of the Nevada Test...
Streamflow statistics for unregulated and regulated conditions for selected locations on the Yellowstone, Tongue, and Powder Rivers, Montana, 1928-2002
Katherine J. Chase
2013, Scientific Investigations Report 2013-5173
Major floods in 1996 and 1997 on the Yellowstone River in Montana intensified public debate over the effects of human activities on the Yellowstone River. In 1999, the Yellowstone River Conservation District Council was formed to address conservation issues on the river. The Yellowstone River Conservation District Council partnered with...
Hydrogeology, distribution, and volume of saline groundwater in the southern midcontinent and adjacent areas of the United States
Noel I. Osborn, S. Jerrod Smith, Christian H. Seger
2013, Scientific Investigations Report 2013-5017
The hydrogeology, distribution, and volume of saline water in 22 aquifers in the southern midcontinent of the United States were evaluated to provide information about saline groundwater resources that may be used to reduce dependency on freshwater resources. Those aquifers underlie six States in the southern midcontinent—Arkansas, Kansas, Louisiana, Missouri,...
Estimated nitrogen loads from selected tributaries in Connecticut draining to Long Island Sound, 1999–2009
John R. Mullaney, Gregory E. Schwarz
2013, Scientific Investigations Report 2013-5171
The total nitrogen load to Long Island Sound from Connecticut and contributing areas to the north was estimated for October 1998 to September 2009. Discrete measurements of total nitrogen concentrations and continuous flow data from 37 water-quality monitoring stations in the Long Island Sound watershed were used to compute total...
Broad-scale patterns of Brook Trout responses to introduced Brown Trout in New York
James E. McKenna Jr., Michael T. Slattery, Kean M. Clifford
2013, North American Journal of Fisheries Management (33) 1221-1235
Brook Trout Salvelinus fontinalis and Brown Trout Salmo trutta are valuable sport fish that coexist in many parts of the world due to stocking introductions. Causes for the decline of Brook Trout within their native range are not clear but include competition with Brown Trout, habitat alteration, and repetitive stocking...
Methods for estimating water consumption for thermoelectric power plants in the United States
Timothy H. Diehl, Melissa Harris, Jennifer C. Murphy, Susan S. Hutson, David E. Ladd
2013, Scientific Investigations Report 2013-5188
Water consumption at thermoelectric power plants represents a small but substantial share of total water consumption in the U.S. However, currently available thermoelectric water consumption data are inconsistent and incomplete, and coefficients used to estimate consumption are contradictory. The U.S. Geological Survey (USGS) has resumed the estimation of thermoelectric water...
Land subsidence along the Delta-Mendota Canal in the northern part of the San Joaquin Valley, California, 2003-10
Michelle Sneed, Justin T. Brandt, Mike Solt
2013, Scientific Investigations Report 2013-5142
Extensive groundwater withdrawal from the unconsolidated deposits in the San Joaquin Valley caused widespread aquifer-system compaction and resultant land subsidence from 1926 to 1970—locally exceeding 8.5 meters. The importation of surface water beginning in the early 1950s through the Delta-Mendota Canal and in the early 1970s through the California Aqueduct...
Developing and implementing the use of predictive models for estimating water quality at Great Lakes beaches
Donna S. Francy, Amie M. G. Brady, Rebecca B. Carvin, Steven R. Corsi, Lori M. Fuller, John H. Harrison, Brett A. Hayhurst, Jeremiah Lant, Meredith B. Nevers, Paul J. Terrio, Tammy M. Zimmerman
2013, Scientific Investigations Report 2013-5166
Predictive models have been used at beaches to improve the timeliness and accuracy of recreational water-quality assessments over the most common current approach to water-quality monitoring, which relies on culturing fecal-indicator bacteria such as Escherichia coli (E. coli.). Beach-specific predictive models use environmental and water-quality variables that are easily and...
Water quality, sediment characteristics, aquatic habitat, geomorphology, and mussel population status of the Clinch River, Virginia and Tennessee, 2009-2011
Jennifer L. Krstolic, Gregory C. Johnson, Brett J.K. Ostby
2013, Data Series 802
Chemical, physical, and biological data were collected during 2009-2011 as part of a study of the Clinch River in Virginia and Tennessee. The data from this study, data-collection methods, and laboratory analytical methods used in the study are documented in this report. The study was conducted to describe the conditions...
Organic wastewater compounds in water and sediment in and near restored wetlands, Great Marsh, Indiana Dunes National Lakeshore, 2009–11
Amanda L. Egler, Martin R. Risch, David A. Alvarez, Paul M. Bradley
2013, Scientific Investigations Report 2013-5186
A cooperative investigation between the U.S. Geological Survey and the National Park Service was completed from 2009 through 2011 to understand the occurrence, distribution, and environmental processes affecting concentrations of organic wastewater compounds in water and sediment in and near Great Marsh at the Indiana Dunes National Lakeshore in Beverly...
Evaluation of intake efficiencies and associated sediment-concentration errors in US D-77 bag-type and US D-96-type depth-integrating suspended-sediment samplers
Thomas A. Sabol, David J. Topping
2013, Scientific Investigations Report 2012-5208
Accurate measurements of suspended-sediment concentration require suspended-sediment samplers to operate isokinetically, within an intake-efficiency range of 1.0 ± 0.10, where intake efficiency is defined as the ratio of the velocity of the water through the sampler intake to the local ambient stream velocity. Local ambient stream velocity is defined as...
Landscape consequences of natural gas extraction in Sullivan and Wyoming Counties, Pennsylvania, 2004–2010
Terry E. Slonecker, Lesley E. Milheim, Coral M. Roig-Silva, Alexander R. Malizia
2013, Open-File Report 2013-1261
Increased demands for cleaner burning energy, coupled with the relatively recent technological advances in accessing unconventional hydrocarbon-rich geologic formations, have led to an intense effort to find and extract natural gas from various underground sources around the country. One of these sources, the Marcellus Shale, located in the Allegheny Plateau,...
Landscape consequences of natural gas extraction in Armstrong and Indiana Counties, Pennsylvania, 2004–2010
Terry E. Slonecker, Lesley E. Milheim, Coral M. Roig-Silva, Alexander R. Malizia
2013, Open-File Report 2013-1263
Increased demands for cleaner burning energy, coupled with the relatively recent technological advances in accessing unconventional hydrocarbon-rich geologic formations, have led to an intense effort to find and extract natural gas from various underground sources around the country. One of these sources, the Marcellus Shale, located in the Allegheny Plateau,...
The importance of mineralogical input into geometallurgy programs
K. Olson Hoal, J.D. Woodhead, Kathleen S. Smith
2013, Conference Paper
Mineralogy is the link between ore formation and ore extraction. It is the most fundamental component of geomet programs, and the most important aspect of a life-of-project approach to mineral resource projects. Understanding orebodies is achieved by understanding the mineralogy and texture of the materials, throughout the process, because minerals hold...
Water resources of Lafourche Parish, Louisiana
Lawrence B. Prakken, John K. Lovelace
2013, Fact Sheet 2013-3075
This fact sheet presents a brief overview of groundwater and surface-water resources in Lafourche Parish, Louisiana. Information on the availability, past and current use trends, and water quality from groundwater and surface-water sources in the parish is discussed. Previously published reports and data stored in the U.S. Geological Survey’s National...
USGS science at work in the San Francisco Bay and Sacramento-San Joaquin Delta estuary
Michelle K. Shouse, Dale A. Cox
2013, Fact Sheet 2013-3037
The San Francisco Bay and Sacramento-San Joaquin Delta form one of the largest estuaries in the United States. The “Bay-Delta” system provides water to more than 25 million California residents and vast farmlands, as well as key habitat for birds, fish, and other wildlife. To help ensure the health of...