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6233 results.

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Page 48, results 1176 - 1200

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Characterization of subsurface stratigraphy along the lower American River floodplain using electrical resistivity, Sacramento, California, 2011
Bethany L. Burton, Michael H. Powers, Lyndsay B. Ball
2014, Open-File Report 2014-1242
In July 2011, the U.S. Geological Survey, in cooperation with the U.S. Army Corps of Engineers, completed a geophysical survey using electrical resistivity along an approximately 6-mile reach of the lower American River in Sacramento, California, to map near-surface lithological variations. This survey is a part of a manifold and...
Steady-state numerical groundwater flow model of the Great Basin carbonate and alluvial aquifer system
Lynette E. Brooks, Melissa D. Masbruch, Donald S. Sweetkind, Susan G. Buto
2014, Scientific Investigations Report 2014-5213
This report describes the construction, calibration, evaluation, and results of a steady-state numerical groundwater flow model of the Great Basin carbonate and alluvial aquifer system that was developed as part of the U.S. Geological Survey National Water Census Initiative to evaluate the nation’s groundwater availability. The study area spans 110,000...
Methods for estimating magnitude and frequency of floods in Arizona, developed with unregulated and rural peak-flow data through water year 2010
Nicholas V. Paretti, Jeffrey R. Kennedy, Lovina A. Turney, Andrea G. Veilleux
2014, Scientific Investigations Report 2014-5211
Flooding is among the worst natural disasters responsible for loss of life and property in Arizona, underscoring the importance of accurate estimation of flood magnitude for proper structural design and floodplain mapping. Twenty-four years of additional peak-flow data have been recorded since the last comprehensive regional flood frequency analysis conducted...
Hydrogeologic framework and groundwater/surface-water interactions of the South Fork Nooksack River Basin, northwestern Washington
Andrew S. Gendaszek
2014, Scientific Investigations Report 2014-5221
A hydrogeologic framework of the South Fork (SF) Nooksack River Basin in northwestern Washington was developed and hydrologic data were collected to characterize the groundwater-flow system and its interaction with surface‑water features. In addition to domestic, agricultural, and commercial uses of groundwater within the SF Nooksack River Basin, groundwater has...
Lidar point density analysis: implications for identifying water bodies
Bruce B. Worstell, Sandra K. Poppenga, Gayla A. Evans, Sandra Prince
2014, Scientific Investigations Report 2014-5191
Most airborne topographic light detection and ranging (lidar) systems operate within the near-infrared spectrum. Laser pulses from these systems frequently are absorbed by water and therefore do not generate reflected returns on water bodies in the resulting void regions within the lidar point cloud. Thus, an analysis of lidar voids...
Aeromagnetic data, processing, and maps of Fort Irwin and vicinity, California
Victoria E. Langenheim, Robert C. Jachens
David C. Buesch, editor(s)
2014, Open-File Report 2013-1024-I
Aeromagnetic data help provide the underpinnings of a hydrogeologic framework for Fort Irwin by locating inferred structural features or grain that influence groundwater flow. Magnetization boundaries defined by horizontal-gradient analyses coincide locally with Cenozoic faults and can be used to extend these faults beneath cover. These boundaries also highlight the...
Evaluation of a mass-balance approach to determine consumptive water use in northeastern Illinois
P.C. Mills, James J. Duncker, Thomas M. Over, Marian Domanski, Marian Domanski, Frank L. Engel
2014, Scientific Investigations Report 2014-5176
A principal component of evaluating and managing water use is consumptive use. This is the portion of water withdrawn for a particular use, such as residential, which is evaporated, transpired, incorporated into products or crops, consumed by humans or livestock, or otherwise removed from the immediate water environment. The amount...
Stochastic modeling of a lava-flow aquifer system
Collin Cronkite-Ratcliff, Geoffrey A. Phelps
2014, Open-File Report 2014-1179
This report describes preliminary three-dimensional geostatistical modeling of a lava-flow aquifer system using a multiple-point geostatistical model. The purpose of this study is to provide a proof-of-concept for this modeling approach. An example of the method is demonstrated using a subset of borehole geologic data and aquifer test data from...
Evaluation of the Raven sUAS to detect and monitor greater sage-grouse leks within the Middle Park population
Leanne Hanson, Christopher L. Holmquist-Johnson, Michelle L. Cowardin
2014, Open-File Report 2014-1205
Staff from the U.S. Geological Survey Fort Collins Science Center and the Colorado Parks and Wildlife Hot Sulphur Springs Office began discussions in 2011 for a proof of concept study to test the Raven RQ-11A small Unmanned Aircraft System (Raven sUAS) for its suitability to detect and monitor greater sage-grouse (Centrocercus...
A ground-based magnetic survey of Frenchman Flat, Nevada National Security Site and Nevada Test and Training Range, Nevada: data release and preliminary interpretation
Jeffrey D. Phillips, Bethany L. Burton, Erika Curry-Elrod, Sigmund Drellack
2014, Open-File Report 2014-1187
The Nevada National Security Site (NNSS, formerly the Nevada Test Site) is located in southern Nevada approximately 105 kilometers (km) (65 miles) northwest of Las Vegas. Frenchman Flat is a sedimentary basin located on the eastern edge of NNSS and extending eastward into the adjacent Nevada Test and Training Range...
Water and nutrient budgets for Vancouver Lake, Vancouver, Washington, October 2010-October 2012
Rich W. Sheibley, James R. Foreman, Cameron A. Marshall, Wendy B. Welch
2014, Scientific Investigations Report 2014-5201
Vancouver Lake, a large shallow lake in Clark County, near Vancouver, Washington, has been undergoing water-quality problems for decades. Recently, the biggest concern for the lake are the almost annual harmful cyanobacteria blooms that cause the lake to close for recreation for several weeks each summer. Despite decades of interest...
Flood-inundation maps and updated components for a flood-warning system or the City of Marietta, Ohio and selected communities along the Lower Muskingum River and Ohio River
Matthew T. Whitehead, Chad J. Ostheimer
2014, Scientific Investigations Report 2014-5195
Digital flood-inundation maps for lower reaches of the Muskingum River and a reach of the Ohio River in southeast Ohio were created by the U.S. Geological Survey (USGS), in cooperation with the Muskingum Watershed Conservancy District and the City of Marietta, Ohio. To complete the inundation maps, Ohio River and...
An initial abstraction and constant loss model, and methods for estimating unit hydrographs, peak streamflows, and flood volumes for urban basins in Missouri
Richard J. Huizinga
2014, Scientific Investigations Report 2014-5193
Streamflow data, basin characteristics, and rainfall data from 39 streamflow-gaging stations for urban areas in and adjacent to Missouri were used by the U.S. Geological Survey in cooperation with the Metropolitan Sewer District of St. Louis to develop an initial abstraction and constant loss model (a time-distributed basin-loss model) and...
Geologic map of the west-central Buffalo National River region, northern Arkansas
Mark R. Hudson, Kenzie J. Turner
2014, Scientific Investigations Map 3314
This map summarizes the geology of the west-central Buffalo National River region in the Ozark Plateaus region of northern Arkansas. Geologically, the region lies on the southern flank of the Ozark dome, an uplift that exposes oldest rocks at its center in Missouri. Physiographically, the map area spans the Springfield...
Quality of surface water in Missouri, water year 2013
Miya N. Barr, Rachel E. Schneider
2014, Data Series 886
The U.S. Geological Survey, in cooperation with the Missouri Department of Natural Resources, designed and operates a series of monitoring stations on streams and springs throughout Missouri known as the Ambient Water-Quality Monitoring Network. During the 2013 water year (October 1, 2012, through September 30, 2013), data were collected at...
Selenium in the upper Blackfoot River watershed, southeastern Idaho, 2001-12
Christopher A. Mebane, Greg Mladenka, Lynn Van Every, Marshall L. Williams, Mark A. Hardy, John R. Garbarino
2014, Scientific Investigations Report 2014-5203
The upper Blackfoot River in southeastern Idaho receives runoff from 12 large phosphate mines. Waste shales that are removed to access the phosphate ore are highly enriched with selenium, resulting in elevated selenium in runoff from the mine waste dumps. In 2001, in cooperation with the Bureau of Land Management,...
Estimation of regional flow-duration curves for Indiana and Illinois
Thomas M. Over, James D. Riley, Mackenzie K. Marti, Jennifer B. Sharpe, Donald V. Arvin
2014, Scientific Investigations Report 2014-5177
Flow-duration curves (FDCs) of daily streamflow are useful for many applications in water resources planning and management but must be estimated at ungaged sites. One common technique for estimating FDCs at ungaged sites in a given region is to use equations obtained by linear regression of FDC quantiles against multiple...
Geologic and geophysical data for wells drilled at Raft River Valley, Cassia County, Idaho, in 1977-1978 and data for wells drilled previously
Manuel Nathenson, Thomas C. Urban, Harry R. Covington
2014, Open-File Report 2014-1201
In order to better define the size of the thermal anomaly in the Raft River Valley, Idaho, the U.S. Geological Survey drilled a series of intermediate-depth (nominal 500-ft depth) wells in 1977 and 1978.  This report presents geologic, geophysical, and temperature data for these drill holes, along with data for...
Water-quality characteristics indicative of wastewater in selected streams in the upper Neuse River Basin, Durham and Orange Counties, North Carolina, from 2004 to 2013
Gloria M. Ferrell, Matthew S. Yearout, Barbara H. Grimes, Alexandria K. Graves, Sharon A. Fitzgerald, Michael T. Meyer
2014, Open-File Report 2014-1215
Data were collected during three time periods to assess the effects of wastewater treatment and disposal practices on the occurrence of selected contaminants indicative of wastewater in the upper Neuse River Basin, North Carolina. The first phase of data collection, December 2004 to June 2005, and the second phase, April...
Low-head hydropower assessment of the Brazilian State of São Paulo
Guleid A. Artan, W. Matthew Cushing, Melissa L. Mathis, Larry L. Tieszen
2014, Open-File Report 2014-1206
This study produced a comprehensive estimate of the magnitude of hydropower potential available in the streams that drain watersheds entirely within the State of São Paulo, Brazil. Because a large part of the contributing area is outside of São Paulo, the main stem of the Paraná River was excluded from...
Understanding the hydrologic sources and sinks in the Nile Basin using multisource climate and remote sensing data sets
Gabriel B. Senay, Naga Manohar Velpuri, Stefanie Bohms, Yonas Demissie, Mekonnen Gebremichael
2014, Water Resources Research (50) 8625-8650
In this study, we integrated satellite-drived precipitation and modeled evapotranspiration data (2000–2012) to describe spatial variability of hydrologic sources and sinks in the Nile Basin. Over 2000–2012 period, 4 out of 11 countries (Ethiopia, Tanzania, Kenya, and Uganda) in the Nile Basin showed a positive water balance while three downstream...
Aquifers of Arkansas: protection, management, and hydrologic and geochemical characteristics of groundwater resources in Arkansas
Timothy M. Kresse, Phillip D. Hays, Katherine R. Merriman, Jonathan A. Gillip, D. Todd Fugitt, Jane L. Spellman, Anna M. Nottmeier, Drew A. Westerman, Joshua M. Blackstock, James L. Battreal
2014, Scientific Investigations Report 2014-5149
Sixteen aquifers in Arkansas that currently serve or have served as sources of water supply are described with respect to existing groundwater protection and management programs, geology, hydrologic characteristics, water use, water levels, deductive analysis, projections of hydrologic conditions, and water quality. State and Federal protection and management programs are...
Groundwater-flow and land-subsidence model of Antelope Valley, California
Adam J. Siade, Tracy Nishikawa, Diane L. Rewis, Peter Martin, Steven P. Phillips
2014, Scientific Investigations Report 2014-5166
Antelope Valley, California, is a topographically closed basin in the western part of the Mojave Desert, about 50 miles northeast of Los Angeles. The Antelope Valley groundwater basin is about 940 square miles and is separated from the northern part of Antelope Valley by faults and low-lying hills. Prior to...
Water-quality modeling of Klamath Straits Drain recirculation, a Klamath River wetland, and 2011 conditions for the Link River to Keno Dam reach of the Klamath River, Oregon
Annett B. Sullivan, I. Ertugrul Sogutlugil, Michael L. Deas, Stewart A. Rounds
2014, Open-File Report 2014-1185
The upper Klamath River and adjacent Lost River are interconnected basins in south-central Oregon and northern California. Both basins have impaired water quality with Total Maximum Daily Loads (TMDLs) in progress or approved. In cooperation with the Bureau of Reclamation, the U.S. Geological Survey (USGS) and Watercourse Engineering, Inc., have...
Water chemistry, seepage investigation, streamflow, reservoir storage, and annual availability of water for the San Juan-Chama Project, northern New Mexico, 1942-2010
Sarah E. McKean, Scott K. Anderholm
2014, Scientific Investigations Report 2014-5155
The Albuquerque Bernalillo County Water Utility Authority supplements the municipal water supply for the Albuquerque metropolitan area, in central New Mexico, with surface water diverted from the Rio Grande. The U.S. Geological Survey, in cooperation with the Albuquerque Bernalillo County Water Utility Authority, undertook this study in which water-chemistry data...