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

6202 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 72, results 1776 - 1800

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Borehole geophysical and flowmeter data for eight boreholes in the vicinity of Jim Woodruff Lock and Dam, Lake Seminole, Jackson County, Florida
John S. Clarke, Michael D. Hamrick, O. Gary Holloway
2011, Open-File Report 2011-1254
Borehole geophysical logs and flowmeter data were collected in April 2011 from eight boreholes to identify the depth and orientation of cavernous zones within the Miocene Tampa Limestone in the vicinity of Jim Woodruff Lock and Dam in Jackson County, Florida. These data are used to assess leakage near the...
Geomorphology and bank erosion of the Matanuska River, southcentral Alaska
Janet H. Curran, Monica L. McTeague
2011, Scientific Investigations Report 2011-5214
Bank erosion along the Matanuska River, a braided, glacial river in southcentral Alaska, has damaged or threatened houses, roadways, and public facilities for decades. Mapping of river geomorphology and bank characteristics for a 65-mile study area from the Matanuska Glacier to the river mouth provided erodibility information that was assessed...
Evaluation of landslide monitoring in the Polish Carpathians
Brian D. Collins, Rex L. Baum, Teresa Mrozek, Piotr Nescieruk, Zbigniew Perski, Wojciech Raczkowski, Marek Graniczny
2011, Open-File Report 2011-1001
In response to the June 15, 2010 request from the Polish Geological Institute (PGI) to the U.S. Geological Survey (USGS) for assistance and advice regarding real-time landslide monitoring, landslide specialists from the USGS Landslide Hazard Program visited PGI headquarters and field sites in September 2010. During our visit we became...
Factors influencing riverine fish assemblages in Massachusetts
David S. Armstrong, Todd A. Richards, Sara B. Levin
2011, Scientific Investigations Report 2011-5193
The U.S. Geological Survey, in cooperation with the Massachusetts Department of Conservation and Recreation, Massachusetts Department of Environmental Protection, and the Massachusetts Department of Fish and Game, conducted an investigation of fish assemblages in small- to medium-sized Massachusetts streams. The objective of this study was to determine relations between fish-assemblage...
Regional potentiometric-surface map of the Great Basin carbonate and alluvial aquifer system in Snake Valley and surrounding areas, Juab, Millard, and Beaver Counties, Utah, and White Pine and Lincoln Counties, Nevada
Philip M. Gardner, Melissa D. Masbruch, Russell W. Plume, Susan G. Buto
2011, Scientific Investigations Map 3193
Water-level measurements from 190 wells were used to develop a potentiometric-surface map of the east-central portion of the regional Great Basin carbonate and alluvial aquifer system in and around Snake Valley, eastern Nevada and western Utah. The map area covers approximately 9,000 square miles in Juab, Millard, and Beaver Counties,...
Suspended-sediment loads, reservoir sediment trap efficiency, and upstream and downstream channel stability for Kanopolis and Tuttle Creek Lakes, Kansas, 2008-10
Kyle E. Juracek
2011, Scientific Investigations Report 2011-5187
Continuous streamflow and turbidity data collected from October 1, 2008, to September 30, 2010, at streamgage sites upstream and downstream from Kanopolis and Tuttle Creek Lakes, Kansas, were used to compute the total suspended-sediment load delivered to and released from each reservoir as well as the sediment trap efficiency for...
Monitoring to assess progress toward meeting the Assabet River, Massachusetts, phosphorus total maximum daily load - Aquatic macrophyte biomass and sediment-phosphorus flux
Marc J. Zimmerman, Yu Qian, Tian Yong Q.
2011, Scientific Investigations Report 2011-5179
In 2004, the Total Maximum Daily Load (TMDL) for Total Phosphorus in the Assabet River, Massachusetts, was approved by the U.S. Environmental Protection Agency. The goal of the TMDL was to decrease the concentrations of the nutrient phosphorus to mitigate some of the instream ecological effects of eutrophication on the...
2010 update—Streamflow characteristics at selected sites in southwestern Georgia, southeastern Alabama, and northwestern Florida, near Lake Seminole
Timothy C. Stamey
2011, Open-File Report 2011-1278
Since the first edition of this report was published in 1996, continuous streamflow data have been recorded in the tri-state area of Alabama, Georgia, and Florida, near Lake Seminole. Several notable floods and severe droughts have occurred during this additional 16-year period that have sparked the need to include these...
Using observed postconstruction peak discharges to evaluate a hydrologic and hydraulic design model, Boneyard Creek, Champaign and Urbana, Illinois
Thomas M. Over, David T. Soong, Robert R. Holmes Jr.
2011, Scientific Investigations Report 2011-5176
Boneyard Creek—which drains an urbanized watershed in the cities of Champaign and Urbana, Illinois, including part of the University of Illinois at Urbana-Champaign (UIUC) campus—has historically been prone to flooding. Using the Stormwater Management Model (SWMM), a hydrologic and hydraulic model of Boneyard Creek was developed for the design of...
Groundwater, surface-water, and water-chemistry data, Black Mesa area, northeastern Arizona—2009–10
Jamie P. Macy, Christopher R. Brown
2011, Open-File Report 2011-1198
The Navajo (N) aquifer is an extensive aquifer and the primary source of groundwater in the 5,400-square-mile Black Mesa area in northeastern Arizona. Availability of water is an important issue in northeastern Arizona because of continued water requirements for industrial and municipal use by a growing population and because of...
Hydraulic characteristics of low-impact development practices in northeastern Ohio, 2008–2010
Robert A. Darner, Denise H. Dumouchelle
2011, Scientific Investigations Report 2011-5165
Low-impact development (LID) is an approach to managing stormwater as near to its source as possible; this is accomplished by minimizing impervious surfaces and promoting more natural infiltration and evapotranspiration than is typically associated with developed areas. Two newly constructed LID sites in northeastern Ohio were studied to document their...
Selected approaches to estimate water-budget components of the High Plains, 1940 through 1949 and 2000 through 2009
Jennifer S. Stanton, Sharon L. Qi, Derek W. Ryter, Sarah E. Falk, Natalie A. Houston, Steven M. Peterson, Stephen M. Westenbroek, Scott C. Christenson
2011, Scientific Investigations Report 2011-5183
The High Plains aquifer, underlying almost 112 million acres in the central United States, is one of the largest aquifers in the Nation. It is the primary water supply for drinking water, irrigation, animal production, and industry in the region. Expansion of irrigated agriculture throughout the past 60 years has...
Hydrogeologic settings and groundwater-flow simulations for regional investigations of the transport of anthropogenic and natural contaminants to public-supply wells—Investigations begun in 2004
Sandra M. Eberts
2011, Professional Paper 1737-B
A study of the Transport of Anthropogenic and Natural Contaminants to public-supply wells (TANC study) was begun in 2001 as part of the U.S. Geological Survey National Water-Quality Assessment (NAWQA) Program. The study was designed to shed light on factors that affect the vulnerability of groundwater and, more specifically, water...
Seepage investigations of the Clackamas River, Oregon
Karl K. Lee
2011, Scientific Investigations Report 2011-5191
Analysis of streamflow measurements and continuous records of streamflow provided insight into interaction of the groundwater system with the Clackamas River in northwestern Oregon. This report assesses gains and losses of the Clackamas River based on streamflow measurements made during previous hydrologic studies, decades of continuous streamflow data, and a...
Helicopter electromagnetic and magnetic geophysical survey data, Hunton anticline, south-central Oklahoma
Bruce D. Smith, David V. Smith, Maryla Deszcz-Pan, Charles D. Blome, Patricia Hill
2011, Open-File Report 2011-1240
This report is a digital data release for multiple geophysical surveys conducted in the Hunton anticline area of south-central Oklahoma. The helicopter electromagnetic and magnetic surveys were flown on March 16–17, 2007, in four areas of the Hunton anticline in south-central Oklahoma. The objective of this project is to improve...
Report of the River Master of the Delaware River for the period December 1, 2006–November 30, 2007
Bruce E. Krejmas, Gary N. Paulachok, Stephen F. Blanchard
2011, Open-File Report 2011-1239
A Decree of the Supreme Court of the United States, entered June 7, 1954, established the position of Delaware River Master within the U.S. Geological Survey (USGS). In addition, the Decree authorizes diversions of water from the Delaware River Basin and requires compensating releases from certain reservoirs, owned by New...
Groundwater conditions and studies in the Augusta–Richmond County area, Georgia, 2008–2009
Gerard Gonthier, Stephen J. Lawrence, Michael F. Peck, O. Gary Holloway
2011, Scientific Investigations Report 2011-5188
Groundwater studies and monitoring efforts conducted during 2008–2009, as part of the U.S. Geological Survey (USGS) Cooperative Water Program with the City of Augusta in Richmond County, Georgia, provided data for the effective management of local water resources. During 2008–2009 the USGS completed: (1) installation of three monitoring wells and...
Hydrogeology, chemical characteristics, and water sources and pathways in the zone of contribution of a public-supply well in San Antonio, Texas
MaryLynn Musgrove, Lynne Fahlquist, Gregory P. Stanton, Natalie A. Houston, Richard J. Lindgren
2011, Scientific Investigations Report 2011-5146
In 2001, the National Water-Quality Assessment (NAWQA) Program of the U.S. Geological Survey initiated a series of studies on the transport of anthropogenic and natural contaminants (TANC) to public-supply wells (PSWs). The main goal of the TANC project was to better understand the source, transport, and receptor factors that control...
A promising tool for subsurface permafrost mapping-An application of airborne geophysics from the Yukon River Basin, Alaska
Jared E. Abraham
2011, Fact Sheet 2011-3133
Permafrost is a predominant physical feature of the Earth's Arctic and Subarctic clines and a major consideration encompassing ecosystem structure to infrastructure engineering and placement. Perennially frozen ground is estimated to cover about 85 percent of the state of Alaska where northern reaches are underlain with continuous permafrost and parts...
Joint Ecosystem Modeling (JEM) ecological model documentation volume 1: Estuarine prey fish biomass availability v1.0.0
Stephanie S. Romañach, Craig Conzelmann, Adam Daugherty, Jerome L. Lorenz, Christina Hunnicutt, Frank J. Mazzotti
2011, Open-File Report 2011-1272
Estuarine fish serve as an important prey base in the Greater Everglades ecosystem for key fauna such as wading birds, crocodiles, alligators, and piscivorous fishes. Human-made changes to freshwater flow across the Greater Everglades have resulted in less freshwater flow into the fringing estuaries and coasts. These changes in freshwater...
Geologic map of the Montoso Peak quadrangle, Santa Fe and Sandoval Counties, New Mexico
Ren A. Thompson, Mark R. Hudson, Ralph R. Shroba, Scott A. Minor, David A. Sawyer
2011, Scientific Investigations Map 3179
The Montoso Peak quadrangle is underlain by volcanic rocks and associated sediments of the Cerros del Rio volcanic field in the southern part of the Española Basin that record volcanic, faulting, alluvial, colluvial, and eolian processes over the past three million years. The geology was mapped from 1997 to 1999...
Status and trends of the rainbow trout population in the Lees Ferry reach of the Colorado River downstream from Glen Canyon Dam, Arizona, 1991–2009
Andrew S. Makinster, William R. Persons, Luke A. Avery
2011, Scientific Investigations Report 2011-5015
The Lees Ferry reach of the Colorado River, a 25-kilometer segment of river located immediately downstream from Glen Canyon Dam, has contained a nonnative rainbow trout (Oncorhynchus mykiss) sport fishery since it was first stocked in 1964. The fishery has evolved over time in response to changes in dam operations...
Selected time-lapse movies of the east rift zone eruption of KĪlauea Volcano, 2004–2008
Tim R. Orr
2011, Data Series 621
Since 2004, the U.S. Geological Survey's Hawaiian Volcano Observatory has used mass-market digital time-lapse cameras and network-enabled Webcams for visual monitoring and research. The 26 time-lapse movies in this report were selected from the vast collection of images acquired by these camera systems during 2004–2008. Chosen for their content and...