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Page 196, results 4876 - 4900

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Hydrologic conditions in the Florida Panther National Wildlife Refuge, 2006-2007
Ronald S. Reese
2010, Open-File Report 2010-1270
Much of the surface water that flows into the Florida Panther National Wildlife Refuge (FPNWR) probably exits southward through Fakahatchee Strand as it did prior to development, because culverts and bridges constructed along I-75 allow overland flow to continue southward within the strand. During the dry season and periods of...
Spatial and stage-structured population model of the American crocodile for comparison of comprehensive Everglades Restoration Plan (CERP) alternatives
Timothy W. Green, Daniel H. Slone, Eric D. Swain, Michael S. Cherkiss, Melinda Lohmann, Frank J. Mazzotti, Kenneth G. Rice
2010, Open-File Report 2010-1284
As part of the U.S. Geological Survey Priority Ecosystems Science (PES) initiative to provide the ecological science required during Everglades restoration, we have integrated current regional hydrologic models with American crocodile (Crocodylus acutus) research and monitoring data to create a model that assesses the potential impact of Comprehensive Everglades Restoration...
Groundwater availability in the Atlantic Coastal Plain of North and South Carolina
Bruce G. Campbell, Alissa L. Coes
2010, Professional Paper 1773
The Atlantic Coastal Plain aquifers and confining units of North and South Carolina are composed of crystalline carbonate rocks, sand, clay, silt, and gravel and contain large volumes of high-quality groundwater. The aquifers have a long history of use dating back to the earliest days of European settlement in the...
Estimating Monthly Water Withdrawals, Return Flow, and Consumptive Use in the Great Lakes Basin
Kimberly H. Shaffer, Rosemary S. Stenback
2010, Open-File Report 2010-1211
Water-resource managers and planners require water-withdrawal, return-flow, and consumptive-use data to understand how anthropogenic (human) water use affects the hydrologic system. Water models like MODFLOW and GSFLOW use calculations and input values (including water-withdrawal and return flow data) to simulate and predict the effects of water use on aquifer and...
Development of a channel classification to evaluate potential for cottonwood restoration, lower segments of the Middle Missouri River, South Dakota and Nebraska
Robert B. Jacobson, Caroline M. Elliott, Brittany L. Huhmann
2010, Scientific Investigations Report 2010-5208
This report documents development of a spatially explicit river and flood-plain classification to evaluate potential for cottonwood restoration along the Sharpe and Fort Randall segments of the Middle Missouri River. This project involved evaluating existing topographic, water-surface elevation, and soils data to determine if they were sufficient to create a...
Characterization of geologic deposits in the vicinity of US Ecology, Amargosa Basin, southern Nevada
Emily M. Taylor
2010, Scientific Investigations Report 2010-5134
Multiple approaches have been applied to better understand the characteristics of geologic units exposed at the surface and buried at depth in the vicinity of US Ecology (USE), a low-level commercial waste site in the northern Amargosa Desert, Nevada. Techniques include surficial geologic mapping and interpretation of the subsurface using...
Lithologic and physicochemical properties and hydraulics of flow in and near the freshwater/saline-water transition zone, San Antonio segment of the Edwards aquifer, south-central Texas, based on water-level and borehole geophysical log data, 1999-2007
Rebecca B. Lambert, Andrew G. Hunt, Gregory P. Stanton, Michael B. Nyman
2010, Scientific Investigations Report 2010-5122
The freshwater zone of the San Antonio segment of the Edwards aquifer in south-central Texas (hereinafter, the Edwards aquifer) is bounded to the south and southeast by a zone of transition from freshwater to saline water (hereinafter, the transition zone). The boundary between the two zones is the freshwater/saline-water interface...
Biological communities in San Francisco Bay track large‐scale climate forcing over the North Pacific
James E. Cloern, Kathryn Hieb, Teresa Jacobson, Bruno Sanso, Emanuele Di Lorenzo, Mark T. Stacey, John L. Largier, Wendy Meiring, William T Peterson, Thomas M. Powell, Monika Winder, Alan D. Jassby
2010, Geophysical Research Letters (37)
Long‐term observations show that fish and plankton populations in the ocean fluctuate in synchrony with large‐scale climate patterns, but similar evidence is lacking for estuaries because of shorter observational records. Marine fish and invertebrates have been sampled in San Francisco Bay since 1980 and exhibit large, unexplained population changes including...
Estimation of the effects of land use and groundwater withdrawals on streamflow for the Pomperaug River, Connecticut
David M. Bjerklie, J. Jeffrey Starn, Claudia Tamayo
2010, Scientific Investigations Report 2010-5114
A precipitation runoff model for the Pomperaug River watershed, Connecticut was developed to address issues of concern including the effect of development on streamflow and groundwater recharge, and the implications of water withdrawals on streamflow. The model was parameterized using a strategy that requires a minimum of calibration and optimization...
Simulation of streamflow and suspended-sediment concentrations and loads in the lower Nueces River watershed, downstream from Lake Corpus Christi to the Nueces Estuary, South Texas, 1958-2008
Darwin J. Ockerman, Franklin T. Heitmuller
2010, Scientific Investigations Report 2010-5194
The U.S. Geological Survey (USGS), in cooperation with the U.S. Army Corps of Engineers-Fort Worth District, City of Corpus Christi, Guadalupe-Blanco River Authority, San Antonio River Authority, and San Antonio Water System, developed, calibrated, and tested a Hydrological Simulation Program ? FORTRAN (HSPF) watershed model to simulate streamflow and suspended-sediment...
Groundwater resources of the East Mountain area, Bernalillo, Sandoval, Santa Fe, and Torrance Counties, New Mexico, 2005
James R. Bartolino, Scott K. Anderholm, Nathan C. Myers
2010, Scientific Investigations Report 2009-5204
The groundwater resources of about 400 square miles of the East Mountain area of Bernalillo, Sandoval, Santa Fe, and Torrance Counties in central New Mexico were evaluated by using groundwater levels and water-quality analyses, and updated geologic mapping. Substantial development in the study area (population increased by 11,000, or 50...
Dissolved organic carbon export and internal cycling in small, headwater lakes
Edward G. Stets, Robert G. Striegl, George R. Aiken
2010, Global Biogeochemical Cycles (24) 1-12
Carbon (C) cycling in freshwater lakes is intense but poorly integrated into our current understanding of overall C transport from the land to the oceans. We quantified dissolved organic carbon export (DOCX) and compared it with modeled gross DOC mineralization (DOCR) to determine whether hydrologic or within-lake processes dominated DOC...
Hydrology of Eagle Creek Basin and effects of groundwater pumping on streamflow, 1969-2009
Anne Marie Matherne, Nathan C. Myers, Kurt J. McCoy
2010, Scientific Investigations Report 2010-5205
Urban and resort development and drought conditions have placed increasing demands on the surface-water and groundwater resources of the Eagle Creek Basin, in southcentral New Mexico. The Village of Ruidoso, New Mexico, obtains 60-70 percent of its water from the Eagle Creek Basin. The village drilled four production wells on...
Water-chemistry data for selected springs, geysers, and streams in Yellowstone National Park, Wyoming, 2006-2008
James W. Ball, R. Blaine McMleskey, D. Kirk Nordstrom
2010, Open-File Report 2010-1192
Water analyses are reported for 104 samples collected from numerous thermal and non-thermal features in Yellowstone National Park (YNP) during 2006-2008. Water samples were collected and analyzed for major and trace constituents from 10 areas of YNP including Apollinaris Spring and Nymphy Creek along the Norris-Mammoth corridor, Beryl Spring in...
Magnetotelluric data, Taos Plateau Volcanic Field, New Mexico
Chad E. Ailes, Brian D. Rodriguez
2010, Open-File Report 2010-1245
The population of the San Luis Basin region of northern New Mexico is growing. Water shortfalls could have serious consequences. Future growth and land management in the region depend on accurate assessment and protection of the region's groundwater resources. An important issue in managing the groundwater resources is a better...
The Border Environmental Health Initiative: Investigating the transboundary Santa Cruz watershed
Laura M. Norman, James Callegary, Charles van Riper III, Floyd Gray
2010, Fact Sheet 2010-3097
In 2004 the U.S. Geological Survey (USGS) launched the Border Environmental Health Initiative (BEHI), a major project encompassing the entire U.S.-Mexico border region. In 2009, a study of the Santa Cruz River Watershed (SCW), located in the border region of Arizona and Sonora, Mexico, was initiated as part of the...
Integrated simulation of consumptive use and land subsidence in the Central Valley, California, for the past and for a future subject to urbanization and climate change
Randall T. Hanson, Alan L. Flint, Claudia C. Faunt, Daniel R. Cayan, Lorraine E. Flint, Stanley A. Leake, Wolfgang Schmid
2010, Conference Paper, Land subsidence, associated hazards and the role of natural resources development: EISOLS 2010 proceedings
Competition for water resources is growing throughout California, particularly in the Central Valley where about 20% of all groundwater used in the United States is consumed for agriculture and urban water supply. Continued agricultural use coupled with urban growth and potential climate change would result in continued depletion of groundwater...
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...
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...
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...
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...