Arsenic, metals, and nutrients in runoff from two detention basins to Raccoon Creek, New Jersey Coastal Plain, 2008
Julia L. Barringer, Zoltan Szabo, Jennifer L. Bonin, Craig K. McGee
2011, Scientific Investigations Report 2011-5017
Arsenic (As) concentrations in the waters of Raccoon Creek in southern New Jersey commonly exceed the State\'s Surface Water Quality Standard (SWQS) for freshwater of 0.017 microgram per liter (mu or ug/L). In order to assess contributions of As from residential runoff to the creek, samples of runoff water were...
A two-phase debris-flow model that includes coupled evolution of volume fractions, granular dilatancy, and pore-fluid pressure
David L. George, Richard M. Iverson
2011, Conference Paper, Debris-flow hazards : mitigation, mechanics, prediction, and assessment : proceedings of 5th international conference : Padua, Italy, 14-17 June 2011
Pore-fluid pressure plays a crucial role in debris flows because it counteracts normal stresses at grain contacts and thereby reduces intergranular friction. Pore-pressure feedback accompanying debris deformation is particularly important during the onset of debrisflow motion, when it can dramatically influence the balance of forces governing downslope acceleration. We consider...
Introduction
Duane Chapman, Michael H. Hoff
2011, Book chapter, Invasive Asian Carps in North America
No abstract available....
A geospatial approach to identify water quality issues for National Wildlife Refuges in Oregon and Washington
Jo Ellen Hinck, Kimberly Chojnacki, Susan E. Finger, Greg Linder, Kevin Kilbride
2011, Journal of Fish and Wildlife Management (2) 12-21
Many National Wildlife Refuges (Refuges) have impaired water quality resulting from historic and current land uses, upstream sources, and aerial pollutant deposition. Competing duties limit the time available for Refuge staff to identify and evaluate potential water quality issues. As a result, water quality–related issues may not be resolved until...
Observations of mass fractionation of noble gases in synthetic methane hydrate
Andrew G. Hunt, John W. Pohlman, Laura A. Stern, Carolyn D. Ruppel, Richard J. Moscati, Gary P. Landis, John C. Pinkston
2011, Conference Paper
As a consequence of contemporary or longer term (since 15 ka) climate warming, gas hydrates in some settings are presently dissociating and releasing methane and other gases to the oceanatmosphere system. A key challenge in assessing the susceptibility of gas hydrates to warming climate is the lack of a technique...
Poster for Ride the Rockies 2011
Janet L. Slate
2011, General Information Product 129
To download other USGS materials related to Ride The Rockies, go to http://www.cr.usgs.gov/rtr/index.html...
Better than a "bird's eye view"
Ann B. Tihansky, Shawn V. Dadisman, Brendan Dwyer
2011, Bay Soundings (Spring 2011)
No abstract available....
Simulation of groundwater flow in a volatile organic compound-contaminated area near Bethpage, Nassau County, New York: A discussion of modeling considerations
Paul E. Misut
2011, Open-File Report 2011-1128
The 2010 Bethpage groundwater-flow model (ARCADIS, 2010) was based on a steady state assumption. Although it is widely acknowledged that significant water-level changes have occurred in the past, the reviewed model does not represent changing water levels. The steady state approach limits the effectiveness of the following: 1. identification of sources...
Sedimentation survey of Lago Cerrillos, Ponce, Puerto Rico, April-May 2008
Luis R. Soler-Lopez
2011, Scientific Investigations Report 2011-5057
Lago Cerrillos dam, located in the municipality of Ponce in southern Puerto Rico, was constructed in 1991 as part of the multipurpose Rio Portugues and Bucana Project. This project provides flood protection, water supply, and recreation facilities for the municipio of Ponce. The reservoir had an original storage capacity of...
Camera traps in animal ecology and conservation: What's next?
James D. Nichols, Allan F. O’Connell, K. Ullas Karanth
Allan F. O’Connell, James D. Nichols, K. Ullas Karanth, editor(s)
2011, Book chapter, Camera traps in animal ecology: methods and analyses.
Synthesis of the effects to fish species of two management scenarios for the secretarial determination on removal of the lower four dams on the Klamath River
John Hamilton, Dennis W. Rondorf, Mark Hampton, Rebecca Quiñones, Jim Simondet, Terry Smith
2011, Report
For decades the long-standing conflict in the Klamath River Basin over water and fish resources has persisted. In an effort to resolve these disputes, PacifiCorp and interested parties negotiated, wrote, and signed the Klamath Hydroelectric Settlement Agreement (KHSA) in 2010, calling for the potential removal of the four lower dams...
Toward the next generation of research on earthquake-induced landslides: Current issues and future challenges
J. Wasowski, David K. Keefer, Chyi-Tyi Lee
2011, Engineering Geology (122) 1-8
Although, thanks to the new developments in investigation techniques, modeling, and data analyses, much progress has been made in our understanding of collateral seismic hazards, important new lessons are still being learned from historic and recent earthquakes. By referring to the accompanying papers included in this Special Issue and other...
Hydrogeology and water quality of the Floridan aquifer system and effects of Lower Floridan aquifer pumping on the Upper Floridan aquifer at Fort Stewart, Georgia
John S. Clarke, Gregory C. Cherry, Gerard Gonthier
2011, Scientific Investigations Report 2011-5065
Test drilling, field investigations, and digital modeling were completed at Fort Stewart, GA, during 2009?2010, to assess the geologic, hydraulic, and water-quality characteristics of the Floridan aquifer system and evaluate the effect of Lower Floridan aquifer (LFA) pumping on the Upper Floridan aquifer (UFA). This work was performed pursuant to...
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...
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...
Decoupled application of the integrated hydrologic model, GSFLOW, to estimate agricultural irrigation in the Santa Rosa Plain, California
Joseph A. 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....
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
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...
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...
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...
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...
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....
