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Page 1705, results 42601 - 42625

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Joint Ecosystem Modeling (JEM) ecological model documentation volume 2: roseate spoonbill (Platalea ajaja) landscape habitat suitability index v1.0.0
Stephanie S. Romañach, Craig Conzelmann, Adam Daugherty, Jerome J. Lorenz, Christina Hunnicutt, Frank J. Mazzotti
2011, Open-File Report 2011-1273
Ecological conditions in the Greater Everglades have changed due to human activities, including the construction of canals to divert water away from the core of the landscape. Current and planned restoration projects are designed to produce a natural sheetflow of water across the landscape. This restoration of water flow should...
Perfluorinated chemicals in surface waters and sediments from northwest Georgia, USA, and their bioaccumulation in Lumbriculus variegatus
Peter J. Lasier, John W. Washington, Sayed M. Hassan, Thomas M. Jenkins
2011, Environmental Toxicology and Chemistry (30) 2194-2201
Concentrations of perfluorinated chemicals (PFCs) were measured in surface waters and sediments from the Coosa River watershed in northwest Georgia, USA, to examine their distribution downstream of a suspected source. Samples from eight sites were analyzed using liquid chromatography‐tandem mass spectrometry. Sediments were also used in 28‐d exposures with the...
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...
Characterization of stormwater runoff from bridges in North Carolina and the effects of bridge deck runoff on receiving streams
Chad R. Wagner, Sharon A. Fitzgerald, Roy D. Sherrell, Douglas A. Harned, Erik L. Staub, Brian H. Pointer, Loren L. Wehmeyer
2011, Scientific Investigations Report 2011-5180
In 2008, the North Carolina General Assembly passed House Bill 2436 that required the North Carolina Department of Transportation (NCDOT) to study the water-quality effects of bridges on receiving streams. In response, the NCDOT and the U.S. Geological Survey (USGS) collaborated on a study to provide information necessary to address...
Development of flood-inundation maps for the West Branch Susquehanna River near the Borough of Jersey Shore, Lycoming County, Pennsylvania
Mark A. Roland, Scott A. Hoffman
2011, Scientific Investigations Report 2010-5057
Streamflow data, water-surface-elevation profiles derived from a Hydrologic Engineering Center River Analysis System hydraulic model, and geographical information system digital elevation models were used to develop a set of 18 flood-inundation maps for an approximately 5-mile reach of the West Branch Susquehanna River near the Borough of Jersey Shore, Pa....
Water-quality data from shallow pond-bottom groundwater in the Fishermans Cove area of Ashumet Pond, Cape Cod, Massachusetts, 2001-2010
Timothy D. McCobb, Denis R. LeBlanc
2011, Data Series 588
The U.S. Geological Survey (USGS) collected water-quality data between 2001 and 2010 in the Fishermans Cove area of Ashumet Pond, Falmouth, Massachusetts, where the eastern portion of a treated-wastewater plume, created by more than 60 years of overland disposal, discharges to the pond. Temporary drive points were installed, and shallow...
Porphyry copper assessment of British Columbia and Yukon Territory, Canada: Chapter C in Global mineral resource assessment
Mark J. Mihalasky, Arthur A. Bookstrom, Thomas P. Frost, Steve Ludington
2011, Scientific Investigations Report 2010-5090-C
The U.S. Geological Survey does regional, national, and global assessments of resources (mineral, energy, water, biologic) to provide science in support of land management and decision making. Mineral resource assessments provide a synthesis of available information about where mineral deposits are known and suspected to be in the Earth’s crust,...
Invasive crayfish in the Pacific Northwest
Christopher A. Pearl, Brome McCreary, Michael Adams
2011, Fact Sheet 2011-3132
Invasive species directly threaten freshwater biodiversity, particularly in regions of high aquatic richness like the Pacific Northwest (PNW). Crayfish are among the most impactful of aquatic invasive species. Invasive crayfish are considered ecosystem engineers due to their ability to alter basic wetland properties, such as reducing vegetation and bank integrity...
A survey of microbial community diversity in marine sediments impacted by petroleum hydrocarbons from the Gulf of Mexico and Atlantic shorelines, Texas to Florida
John T. Lisle, Sarah H. Stellick
2011, Open-File Report 2011-1151
Microbial community genomic DNA was extracted from sediment samples collected along the Gulf of Mexico and Atlantic coasts from Texas to Florida. Sample sites were identified as being ecologically sensitive and (or) as having high potential of being impacted by Macondo-1 (M-1) well oil from the Deepwater Horizon blowout. The...
Thematic accuracy of the National Land Cover Database (NLCD) 2001 land cover for Alaska
David J. Selkowitz, Stephen V. Stehman
2011, Remote Sensing of Environment (115) 1401--1407
The National Land Cover Database (NLCD) 2001 Alaska land cover classification is the first 30-m resolution land cover product available covering the entire state of Alaska. The accuracy assessment of the NLCD 2001 Alaska land cover classification employed a geographically stratified three-stage sampling design to...
Exploring the potential for a fused Landsat-MODIS snow covered area product
David J. Selkowitz
2011, Conference Paper, Proceedings of the 79th Annual Western Snow Conference
Results from nine 3 x 3 km study areas in the Rocky Mountains of Colorado, USA demonstrate there is potential for using sporadically acquired Landsat images in combination with daily coarse resolution fractional snow covered area (SCA) images to produce daily high resolution binary SCA images. The results also highlight...
Using host-associated genetic markers to investigate sources of fecal contamination in two Vermont streams
Laura Medalie, Leslie J. Matthews, Erin A. Stelzer
2011, Scientific Investigations Report 2011-5113
The use of host-associated Bacteroidales-based 16S ribosomal ribonucleic acid genetic markers was investigated as a tool for providing information to managers on sources of bacterial impairment in Vermont streams. The study was conducted during 2009 in two watersheds on the U.S. Environmental Protection Agency's 303(d) List of Impaired Waters, the...
Using observed warming to identify hazards to Mozambique maize production
Christopher C. Funk, Laura Harrison, Gary Eilerts
2011, Fact Sheet 2011-3110
New Perspectives on Crop Yield Constraints because of Climate Change. Climate change impact assessments usually focus on changes to precipitation because most global food production is from rainfed cropping systems; however, other aspects of climate change may affect crop growth and potential yields.A recent (2011) study by the University of...
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...
Monitoring and analysis of sand dune movement and growth on the Navajo Nation, southwestern United States
Margaret Hiza Redsteer, Rian Bogle, John M. Vogel
2011, Fact Sheet 2011-3085
Recurring drought and rising temperatures have caused reactivation and renewed growth of sand dunes on the lands of the Navajo Nation on the Colorado Plateau. Migrating dunes threaten health, housing, and transportation pathways. U.S. Geological Survey (USGS) scientists are conducting research to better understand the processes of dune growth and...
A survey of alterations in microbial community diversity in marine sediments in response to oil from the Deepwater Horizon spill: Northern Gulf of Mexico shoreline, Texas to Florida
John T. Lisle
2011, Open-File Report 2011-1059
Microbial community genomic DNA was extracted from sediment samples collected from the northern Gulf of Mexico (NGOM) coast. These samples had a high probability of being impacted by Macondo-1 (M-1) well oil from the Deepwater Horizon (DWH) drilling site. The hypothesis for this project was that presence of M-1 oil...
2010 bathymetric survey and digital elevation model of Corte Madera Bay, California
Amy C. Foxgrover, David P. Finlayson, Bruce E. Jaffe, John Y. Takekawa, Karen M. Thorne, Kyle A. Spragens
2011, Open-File Report 2011-1217
A high-resolution bathymetric survey of Corte Madera Bay, California, was collected in early 2010 in support of a collaborative research project initiated by the San Francisco Bay Conservation and Development Commission and funded by the U.S. Environmental Protection Agency. The primary objective of the Innovative Wetland Adaptation in the Lower...
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...
Catfish science: Status and trends in the 21st century
Thomas J. Kwak, Mark T. Porath, Paul H. Michaletz, Vincent H. Travnichek
2011, Conference Paper
Catfish science, the study of the fish order Siluriformes, is a diverse and expanding field in terms of advances and breadth of topics. We compiled literature from primary fisheries journals as an index of interest and advances in catfish science to examine temporal trends in the field. The number of...
Audiomagnetotelluric data, Taos Plateau Volcanic Field, New Mexico
Chad E. Ailes, Brian D. Rodriguez
2011, Open-File Report 2011-1264
The U.S. Geological Survey is conducting a series of multidisciplinary studies of the San Luis Basin as part of the Geologic framework of the Rio Grande Basins project. Detailed geologic mapping, high-resolution airborne magnetic surveys, gravity surveys, audiomagnetotelluric surveys, and hydrologic and lithologic data are being used to better understand...
Streamflow, groundwater hydrology, and water quality in the upper Coleto Creek watershed in southeast Texas, 2009–10
Christopher L. Braun, Rebecca B. Lambert
2011, Scientific Investigations Report 2011-5157
The U.S. Geological Survey (USGS), in cooperation with the Goliad County Groundwater Conservation District, Victoria County Groundwater Conservation District, Pecan Valley Groundwater Conservation District, Guadalupe-Blanco River Authority, and San Antonio River Authority, did a study to examine the hydrology and stream-aquifer interactions in the upper Coleto Creek watershed. Findings of...
Volunteer map data collection at the USGS
B. Wolf Eric, Barbara S. Poore, Holly K. Caro, Greg D. Matthews
2011, Fact Sheet 2011-3103
Since 1994, citizen volunteers have helped the U.S. Geological Survey (USGS) improve its topographic maps. Through the Earth Science Corps program, citizens were able to "adopt a quad" and collect new information and update existing map features. Until its conclusion in 2001, as many as 300 volunteers annotated paper maps...