Impact of wildfire on levels of mercury in forested watershed systems: Voyageurs National Park, Minnesota
Laurel G. Woodruff, Mark B. Sandheinrich, Mark E. Brigham, William F. Cannon
2009, Scientific Investigations Report 2009-5151
Atmospheric deposition of mercury to remote lakes in mid-continental and eastern North America has increased approximately threefold since the mid-1800s (Swain and others, 1992; Fitzgerald and others, 1998; Engstrom and others, 2007). As a result, concerns for human and wildlife health related to mercury contamination have become widespread. Despite an...
Geophysical Studies in the Vicinity of the Warner Mountains and Surprise Valley, Northeast California, Northwest Nevada, and Southern Oregon
David A. Ponce, Jonathan M. G. Glen, Anne E. Egger, Claire Bouligand, Janet T. Watt, Robert L. Morin
2009, Open-File Report 2009-1157
From May 2006 to August 2007, the U.S. Geological Survey (USGS) collected 793 gravity stations, about 102 line-kilometers of truck-towed and ground magnetometer data, and about 325 physical-property measurements in northeastern California, northwestern Nevada, and southern Oregon. Gravity, magnetic, and physical-property data were collected to study regional crustal structures and...
Finding Trapped Miners by Using a Prototype Seismic Recording System Made from Music-Recording Hardware
Thomas L. Pratt
2009, Open-File Report 2009-1095
The goal of this project was to use off-the-shelf music recording equipment to build and test a prototype seismic system to listen for people trapped in underground chambers (mines, caves, collapsed buildings). Previous workers found that an array of geophones is effective in locating trapped miners; displaying the data graphically,...
Probability of Unmixed Young Groundwater (defined using chlorofluorocarbon-11 concentrations and tritium activities) in the Eagle River Watershed Valley-Fill Aquifer, Eagle County, North-Central Colorado, 2006-2007
Michael G. Rupert, Niel Plummer
2009, Data Series 460
This raster data set delineates the predicted probability of unmixed young groundwater (defined using chlorofluorocarbon-11 concentrations and tritium activities) in groundwater in the Eagle River watershed valley-fill aquifer, Eagle County, North-Central Colorado, 2006-2007. This data set was developed by a cooperative project between the U.S. Geological Survey, Eagle County, the...
Probability of Elevated Nitrate Concentrations in Groundwater in the Eagle River Watershed Valley-Fill Aquifer, Eagle County, North-Central Colorado, 2006-2007
Michael G. Rupert, Niel Plummer
2009, Data Series 459
This raster data set delineates the predicted probability of elevated nitrate concentrations in groundwater in the Eagle River watershed valley-fill aquifer, Eagle County, North-Central Colorado, 2006-2007. This data set was developed by a cooperative project between the U.S. Geological Survey, Eagle County, the Eagle River Water and Sanitation District, the...
Boundary of the Eagle River watershed valley-fill aquifer, Eagle County, north-central Colorado, 2006-2007
Michael G. Rupert, Niel Plummer
2009, Data Series 458
This vector data set delineates the approximate boundary of the Eagle River watershed valley-fill aquifer (ERWVFA). This data set was developed by a cooperative project between the U.S. Geological Survey, Eagle County, the Eagle River Water and Sanitation District, the Town of Eagle, the Town of Gypsum, and the Upper...
Source, Transport, and Fate of Groundwater Contamination at Site 45, Marine Corps Recruit Depot, Parris Island, South Carolina
Don A. Vroblesky, Matthew D. Petkewich, James Landmeyer, Mark A. Lowery
2009, Scientific Investigations Report 2009-5161
Groundwater contamination by tetrachloroethene and its dechlorination products is present in two partially intermingled plumes in the surficial aquifer near a former dry-cleaning facility at Site 45, Marine Corps Recruit Depot, Parris Island, South Carolina. The northern plume originates from the vicinity of former above-ground storage tanks. Free-phase tetrachloroethene from...
Total Petroleum Systems and Geologic Assessment of Oil and Gas Resources in the Powder River Basin Province, Wyoming and Montana
2009, Data Series 69-U
The U.S. Geological Survey completed an assessment of the undiscovered oil and gas potential of the Powder River Basin in 2006. The assessment of undiscovered oil and gas used the total petroleum system concept, which includes mapping the distribution of potential source rocks and known petroleum accumulations and determining the...
Sources, transport, and storage of sediment at selected sites in the Chesapeake Bay Watershed
Allen C. Gellis, Cliff R. Hupp, Milan J. Pavich, Jurate M. Landwehr, William S.L. Banks, Bernard E. Hubbard, Michael J. Langland, Jerry C. Ritchie, Joanna M. Reuter
2009, Scientific Investigations Report 2008-5186
The Chesapeake Bay Watershed covers 165,800 square kilometers and is supplied with water and sediment from five major physiographic provinces: Appalachian Plateau, Blue Ridge, Coastal Plain, Piedmont, and the Valley and Ridge. Suspended-sediment loads measured in the Chesapeake Bay Watershed showed that the Piedmont Physiographic Province has the highest rates...
Land-Cover Change in the Central Irregular Plains, 1973-2000
Krista A. Karstensen
2009, Open-File Report 2009-1159
Spearheaded by the Geographic Analysis and Monitoring Program of the U.S. Geological Survey (USGS) in collaboration with the U.S. Environmental Protection Agency (EPA) and the National Aeronautics and Space Administration (NASA), the Land Cover Trends is a research project focused on understanding the rates, trends, causes, and consequences of contemporary...
Digital representation of 1:1,000,000-scale hydrographic areas of the Great Basin
Susan G. Buto
2009, Data Series 457
Hydrographic areas (HA) in Nevada were delineated by the U.S. Geological Survey (USGS) and Nevada Division of Water Resources in the late 1960s for scientific and administrative purposes. The official HA names, numbers, and boundaries continue to be used in USGS scientific reports and Nevada State Division of Water Resources...
Occurrence of viable avian influenza viruses in water and bed sediments from selected water bodies along the Atlantic Flyway, February and May 2006 and January 2007
Melinda S. Dalton, Lisa M. Stewart, S. Ip
2009, Open-File Report 2009-1161
Water and bed-sediment samples were collected from selected water bodies along the Atlantic Flyway and analyzed for the presence of viable avian influenza viruses. Samples were collected during February and May 2006 and January 2007 at U.S. Fish and Wildlife Service National Wildlife Refuges in Georgia, South Carolina, North Carolina,...
Discharge and other hydraulic measurements for characterizing the hydraulics of Lower Congo River
Kevin Oberg, John M. Shelton, Ned Gardiner, P. Ryan Jackson
2009, Conference Paper, 33rd IAHR congress: Water engineering for a sustainable environment
The first direct measurements of discharge of the Lower Congo River below Malebo Pool and upstream from Kinganga, Democratic Republic of Congo (DRC) were made in July 2008 using acoustic Doppler current profilers, differential GPS, and echo sounders. These measurements were made in support of research that is attempting to...
Using a StreamPro acoustic doppler current profiler in moving-bed conditions: Problems and solutions
David S. Mueller, Mike S. Rehmel, Chad R. Wagner
2009, Conference Paper, 33rd IAHR congress: Water engineering for a sustainable environment
No abstract available....
The effect of channel shape, bed morphology, and shipwrecks on flow velocities in the Upper St. Clair River
Jonathan A. Czuba, Kevin Oberg, Jim Best, Daniel R. Parsons
2009, Conference Paper, 33rd IAHR congress: Water engineering for a sustainable environment
In the Great Lakes of North America, the St. Clair River is the major outlet of Lake Huron and conveys water to Lake St. Clair which then flows to Lake Erie. One major topic of interest is morphological change in the St. Clair River and its impact on water levels...
Laboratory evaluation of an OTT acoustic digital current meter and a SonTek Laboratory acoustic Doppler velocimeter
T.B. Vermeyen, Kevin A. Oberg, Patrick Ryan Jackson
2009, Conference Paper
Recently, an acoustic current meter known as the OTT * acoustic digital current meter (ADC) was introduced as an alternative instrument for stream gaging measurements. The Bureau of Reclamation and the U.S. Geological Survey collaborated on a side- by-side evaluation of the ADC and a SonTek/YSI acoustic Doppler velocimeter (ADV)....
Preliminary Geomorphic Map of the Kitsap Peninsula, Washington
Ralph A. Haugerud
2009, Open-File Report 2009-1033
The Kitsap Peninsula, in the center of the Puget Lowland of Washington State, has been glaciated repeatedly during the last 2 million years. This geologic history is significant to our understanding of crustal deformation, ground- and surface-water resources, the distribution of fishes, and other topics. Recent high-resolution lidar (LIght Detection...
Carbonatites of the world, explored deposits of Nb and REE— Database and grade and tonnage models
Vladimir I. Berger, Donald A. Singer, Greta J. Orris
2009, Open-File Report 2009-1139
This report is based on published tonnage and grade data on 58 Nb- and rare-earth-element (REE)-bearing carbonatite deposits that are mostly well explored and are partially mined or contain resources of these elements. The deposits represent only a part of the known 527 carbonatites around the world, but they are...
Revised multi-node well (MNW2) package for MODFLOW ground-water flow model
Leonard F. Konikow, George Z. Hornberger, Keith J. Halford, Randall T. Hanson, Arlen W. Harbaugh
2009, Techniques and Methods 6-A30
Wells that are open to multiple aquifers can provide preferential pathways to flow and solute transport that short-circuit normal fluid flowlines. Representing these features in a regional flow model can produce a more realistic and reliable simulation model. This report describes modifications to the Multi-Node Well (MNW) Package of the...
Investigating white-nose syndrome in bats
David S. Blehert
2009, Fact Sheet 2009-3058
A devastating, emergent disease afflicting hibernating bats has pread from the northeast to the mid-Atlantic region of the United States at an alarming rate. Since the winter of 2006-2007, hundreds of thousands of insect-eating bats from at least nine states have died from this new disease, named White-Nose Syndrome (WNS)....
Economics of undiscovered oil and gas in the North Slope of Alaska: Economic update and synthesis
Emil D. Attanasi, Philip A. Freeman
2009, Open-File Report 2009-1112
The U.S. Geological Survey (USGS) has published assessments by geologists of undiscovered conventional oil and gas accumulations in the North Slope of Alaska; these assessments contain a set of scientifically based estimates of undiscovered, technically recoverable quantities of oil and gas in discrete oil and gas accumulations that can be...
The Saga of Leafy Spurge (Euphorbia esula) in the Northern Great Plains
Diane L. Larson
2009, Fact Sheet 2009-3066
Leafy spurge (Euphorbia esula L.) is an invasive Eurasian perennial introduced into the United States as a contaminant of crop seed in the 1880s and 1890s. It typically forms monocultures in rangeland and natural areas of the northern Great Plains where, because of the latex that occurs in all parts...
Ignoring detailed fast-changing dynamics of land use overestimates regional terrestrial carbon sequestration
S.Q. Zhao, S. Liu, Zhengpeng Li
2009, Biogeosciences (6) 1647-1654
Land use change is critical in determining the distribution, magnitude and mechanisms of terrestrial carbon budgets at the local to global scales. To date, almost all regional to global carbon cycle studies are driven by a static land use map or land use change statistics with decadal time intervals. The...
Brine migration from a flooded salt mine in the Genesee Valley, Livingston County, New York: Geochemical modeling and simulation of variable-density flow
Richard M. Yager, Paul E. Misut, Christian D. Langevin, David L. Parkhurst
2009, Professional Paper 1767
The Retsof salt mine in upstate New York was flooded from 1994 to 1996 after two roof collapses created rubble chimneys in overlying bedrock that intersected a confined aquifer in glacial sediments. The mine now contains about 60 billion liters of saturated halite brine that is slowly being displaced as...
Simulation of the Groundwater-Flow System in Pierce, Polk, and St. Croix Counties, Wisconsin
Paul F. Juckem
2009, Scientific Investigations Report 2009-5056
Groundwater is the sole source of residential water supply in Pierce, Polk, and St. Croix Counties, Wisconsin. A regional three-dimensional groundwater-flow model and three associated demonstration inset models were developed to simulate the groundwater-flow systems in the three-county area. The models were developed by the U.S. Geological Survey in cooperation...
