The unusual nature of recent snowpack declines in the North American cordillera
Gregory T. Pederson, Stephen T. Gray, C.A. Woodhouse, Julio L. Betancourt, Daniel B. Fagre, Jeremy S. Littell, Emma Watson, B.H. Luckman, Lisa J. Graumlich
2011, Science (333) 332-335
In western North America, snowpack has declined in recent decades, and further losses are projected through the 21st century. Here, we evaluate the uniqueness of recent declines using snowpackreconstructions from 66 tree-ring chronologies in key runoff-generating areas of the Colorado, Columbia, and Missouri River drainages. Over the past millennium, late 20th century <span...
Surface-water, water-quality, and meteorological data for the Cambridge, Massachusetts, drinking-water source area, water years 2007-08
Kirk P. Smith
2011, Open-File Report 2011-1077
Records of water quantity, water quality, and meteorological parameters were continuously collected from three reservoirs, two primary streams, and five subbasin tributaries in the Cambridge, Massachusetts, drinking-water source area during water years 2007-08 (October 2006 through September 2008). Water samples were collected during base-flow conditions and storms in the Cambridge...
Digitized generalized areas where surface-water resources likely or potentially are susceptible to groundwater withdrawals in adjacent valleys, Great Basin National Park area, Nevada
Peggy E. Elliott, David A. Beck, David E. Prudic
2011, Data Series 583
Abstract Polygons delineate generalized areas in and around Great Basin National Park where surface-water resources likely or potentially are susceptible to groundwater withdrawals in adjacent valleys. Purpose This data set was created as part of a U.S. Geological Survey study, done in cooperation with the National Park Service, to characterize surface-water resources in...
Effect of the difference between water-table elevation and hydraulic head on simulation of unconfined aquifers using MODFLOW
Alden M. Provost, Christian D. Langevin
2011, Conference Paper, MODFLOW and More 2011: Integrated Hydrologic Modeling
Decoupled application of the integrated hydrologic model, GSFLOW, to estimate agricultural irrigation in the Santa Rosa Plain, California
Joseph Hevesi, Linda R. Woolfenden, Richard G. Niswonger, R. Steven Regan, Tracy Nishikawa
2011, Conference Paper, Proceedings of the conference MODFLOW and more 2011: Integrated hydrologic modeling
No abstract available....
A survey of spontaneous occurrence of ochratoxin A residues in chicken tissues and concurrence with histopathological changes in liver and kidneys
Dragan Milicevic, Milijan Jovanovic, Vesna Matekalosverak, Tatjana Radicevic, Milan M. Petrovic, Slobodan Lilic
2011, Journal of Environmental Science and Health, Part C: Environmental Carcinogenesis and Ecotoxicology Reviews (29) 159-175
Toxicological and histopathological investigations of tissues of commercially slaughtered chickens were carried out to provide a preliminary evaluation of the incidence of occurrence of ochratoxin A (OTA) in chicken sold in Serbian retail market. In addition, the etiology of nephropathies of these chickens was elucidated. The majority of these tissue...
Bayesian adaptive survey protocols for resource management
Brian J. Halstead, Glenn D. Wylie, Peter S. Coates, Michael L. Casazza
2011, Journal of Wildlife Management (75) 450-457
Transparency in resource management decisions requires a proper accounting of uncertainty at multiple stages of the decision‐making process. As information becomes available, periodic review and updating of resource management protocols reduces uncertainty and improves management decisions. One of the most basic steps to mitigating anthropogenic effects on populations is determining...
Groundwater quality in the Chemung River Basin, New York, 2008
Amy J. Risen, James E. Reddy
2011, Open-File Report 2011-1112
The second groundwater quality study of the Chemung River Basin in south-central New York was conducted as part of the U.S. Geological Survey 305(b) water-quality-monitoring program. Water samples were collected from five production wells and five private residential wells from October through December 2008. The samples were analyzed to characterize...
A comparison of effects from prescribed fires and wildfires managed for resource objectives in Sequoia and Kings Canyon National Parks
Jonathan C. B. Nesmith, Anthony C. Caprio, Anne H. Pfaff, Thomas W. McGinnis, Jon E. Keeley
2011, Forest Ecology and Management (261) 1275-1282
Current goals for prescription burning are focused on measures of fuel consumption and changes in forest density. These benchmarks, however, do not address the extent to which prescription burning meets perceived ecosystem needs of heterogeneity in burning, both for overstory trees and understory herbs and shrubs. There are still questions...
A field test of attractant traps for invasive Burmese pythons (Python molurus bivittatus) in southern Florida
Robert N. Reed, Kristen M. Hart, Gordon H. Rodda, Frank J. Mazzotti, Ray W. Snow, Michael Cherkiss, Rondald Rozar, Scott Goetz
2011, Wildlife Research (38) 114-121
Context: Invasive Burmese pythons (Python molurus bivittatus) are established over thousands of square kilometres of southern Florida, USA, and consume a wide range of native vertebrates. Few tools are available to control the python population, and none of the available tools have been validated in the field to assess capture...
Ride the Rockies 2011, postcard
Janet L. Slate
2011, General Information Product 127
2011 Ride The Rockies route on shaded-relief mosaic of USGS Landsat 7 satellite images, north-central Colorado....
Geology highlights, Ride the Rockies 2011
Janet L. Slate
2011, General Information Product 128
The author provides a brief description of the geology along the route for each day of the ride, from June 12 through June 17, 2011. Ride the Rockies begins in Crested Butte, Colorado, with stops in Buena Vista, Edwards, Steamboat Springs, Granby, and Georgetown. A small, generalized geologic map also...
Estimates of mean-annual streamflow and flow loss for ephemeral channels in the Salt Basin, southeastern New Mexico, 2009
Anne Tillery
2011, Scientific Investigations Report 2011-5062
Geospatial characteristics of Florida's coastal and offshore environments: Coastal habitats, artificial reefs, wrecks, dumping grounds, harbor obstructions and offshore sand resources
Amanda W.J. Demopoulos, Ann M. Foster, Michal L. Jones, Daniel J. Gualtieri
2011, Scientific Investigations Map 3167
The Geospatial Characteristics GeoPDF of Florida's Coastal and Offshore Environments is a comprehensive collection of geospatial data describing the political boundaries and natural resources of Florida. This interactive map provides spatial information on bathymetry, sand resources, coastal habitats, artificial reefs, shipwrecks, dumping grounds, and harbor obstructions. The map should be...
Magnitude and frequency of floods for rural streams in Florida, 2006
Richard J. Verdi, Joann F. Dixon
2011, Scientific Investigations Report 2011-5034
Methods for estimating the magnitude of floods for selected percent chance exceedance probabilities are presented for ungaged streams in Florida that are not sub stantially affected by regulation, channelization, or urban development. Flood-frequency flows also are presented for 275 Florida streamgages used in the regional regression analysis. Regression relations used...
Three‐dimensional model for the crust and upper mantle in the Barents Sea region
H. Bangum, O. Ritzmann, N. Maercklin, J.I. Faleide, Walter D. Mooney, Shane T. Detweiler
2011, Eos, Earth and Space Science News (86) 160-161
The Barents Sea and its surroundings is an epicontinental region which previously has been difficult to access, partly because of its remote Arctic location (Figure 1) and partly because the region has been politically sensitive. Now, however, this region, and in particular its western parts, has been very well surveyed...
Small explosion from new vent at Kilauea’s summit
David C. Wilson, Tamar Elias, Tim R. Orr, Matthew R. Patrick, Jeff Sutton, Don Swanson
2011, Eos, Transactions, American Geophysical Union (89) 203-203
At 0258 Hawaii‐Aleutian Standard Time (HST) on 19 March 2008, a small explosion scattered altered and fresh lithic debris across a 40‐hectare area at the summit of Kilauea volcano. This explosion, the first recorded there since 1924, issued from a vent about 35 meters wide along the east wall of...
Mars atmospheric surface interactions and the CO2 cycle
Timothy N. Titus, Anthony Colaprete
2011, Eos, Transactions, American Geophysical Union (86)
Mars' northern and southern seasonal polar caps are formed during their respective autumn and winter seasons both by condensation of atmospheric carbon dioxide (CO2) directly onto the surface, and through atmospheric precipitation in the form of CO2 snow. During the polar spring and summer, the seasonal ice sublimes, returning CO2 to the...
Geospatial characteristics of Florida's coastal and offshore environments: Distribution of important habitats for coastal and offshore biological resources and offshore sand resources
Amanda W.J. Demopoulos, Ann M. Foster, Michal L. Jones, Daniel J. Gualtieri
2011, Scientific Investigations Map 3166
The Geospatial Characteristics GeoPDF of Florida's Coastal and Offshore Environments is a comprehensive collection of geospatial data describing the political boundaries and natural resources of Florida. This interactive map provides spatial information on bathymetry, sand resources, and locations of important habitats (for example, Essential Fish Habitats (EFH), nesting areas, strandings)...
Spatially pooled depth-dependent reservoir storage, elevation, and water-quality data for selected reservoirs in Texas, January 1965-January 2010
Thomas E. Burley, William H. Asquith, Donald L. Brooks
2011, Data Series 594
The U.S. Geological Survey (USGS), in cooperation with Texas Tech University, constructed a dataset of selected reservoir storage (daily and instantaneous values), reservoir elevation (daily and instantaneous values), and water-quality data from 59 reservoirs throughout Texas. The period of record for the data is as large as January 1965-January 2010....
Suspended sediment and organic contaminants in the San Lorenzo River, California, water years 2009-2010
Amy E. Draut, Christopher H. Conaway, Kathy R. Echols, Curt D. Storlazzi, Andrew Ritchie
2011, Open-File Report 2011-1120
This report presents analyses of suspended sediment and organic contaminants measured during a two-year study of the San Lorenzo River, central California, which discharges into the Pacific Ocean within the Monterey Bay National Marine Sanctuary. Most suspended-sediment transport occurred during flooding caused by winter storms; 55 percent of the sediment...
Principal facts for gravity stations collected in 2010 from White Pine and Lincoln Counties, east-central Nevada
Edward A. Mankinen, Edwin H. McKee
2011, Open-File Report 2011-1084
Increasing demands on the Colorado River system within the arid Southwestern United States have focused attention on finding new, alternative sources of water. Particular attention is being paid to the eastern Great Basin, where important ground-water systems occur within a regionally extensive sequence of Paleozoic carbonate rocks and in the...
Ni-Co laterite deposits of the world — Database and grade and tonnage models
Vladimir I. Berger, Donald A. Singer, James D. Bliss, Barry C. Moring
2011, Open-File Report 2011-1058
No abstract available....
Preliminary isostatic residual gravity anomaly map of Paso Robles 30 x 60 minute quadrangle, California
D.K. McPhee, V.E. Langenheim, J. T. Watt
2011, Open-File Report 2011-1104
This isostatic residual gravity map is part of an effort to map the three-dimensional distribution of rocks in the central California Coast Ranges and will serve as a basis for modeling the shape of basins and for determining the location and geometry of faults within the Paso Robles quadrangle. Local...
Soil data from different-age Picea mariana stands near Delta Junction, Alaska
Kristen L. Manies, Jennifer W. Harden
2011, Open-File Report 2011-1061
One objective of the U.S. Geological Survey\'s Fate of Carbon in Alaskan Landscapes (FOCAL) project is to study the effects of fire and soil drainage on soil carbon storage in boreal forests. For this purpose, the project has measured the soil carbon content in several chronosequences (time since disturbance) of...
