Sediment deposition, erosion, and bathymetric change in central San Francisco Bay: 1855-1979
Theresa A. Fregoso, Amy C. Foxgrover, Bruce E. Jaffe
2008, Open-File Report 2008-1312
Central San Francisco Bay is the hub of a dynamic estuarine system connecting the San Joaquin and Sacramento River Deltas, Suisun Bay, and San Pablo Bay to the Pacific Ocean and South San Francisco Bay. To understand the role that Central San Francisco Bay plays in sediment transport throughout the...
A Review of Methods Applied by the U.S. Geological Survey in the Assessment of Identified Geothermal Resources
Colin F. Williams, Marshall J. Reed, Robert H. Mariner
2008, Open-File Report 2008-1296
The U. S. Geological Survey (USGS) is conducting an updated assessment of geothermal resources in the United States. The primary method applied in assessments of identified geothermal systems by the USGS and other organizations is the volume method, in which the recoverable heat is estimated from the thermal energy available...
Methods to Evaluate Influence of Onsite Septic Wastewater-Treatment Systems on Base Flow in Selected Watersheds in Gwinnett County, Georgia, October 2007
Mark N. Landers, Paul D. Ankcorn
2008, Scientific Investigations Report 2008-5220
The influence of onsite septic wastewater-treatment systems (OWTS) on base-flow quantity needs to be understood to evaluate consumptive use of surface-water resources by OWTS. If the influence of OWTS on stream base flow can be measured and if the inflow to OWTS is known from water-use data, then water-budget approaches...
Well Inventory and Geophysical Logging of Selected Wells in Troup County, Georgia, 2007-2008
Michael F. Peck, David C. Leeth, Michael D. Hamrick
2008, Scientific Investigations Map 3058
The U.S. Geological Survey (USGS) - in cooperation with the Troup County Board of Commissioners - conducted a well inventory to provide information to help evaluate ground-water resources for Troup County, Georgia. In addition, borehole geophysical logs were collected in selected wells to provide a better understanding of the subsurface...
Potential Chemical Effects of Changes in the Source of Water Supply for the Albuquerque Bernalillo County Water Utility Authority
Laura M. Bexfield, Scott K. Anderholm
2008, Scientific Investigations Report 2006-5171
Chemical modeling was used by the U.S. Geological Survey, in cooperation with the Albuquerque Bernalillo County Water Utility Authority (henceforth, Authority), to gain insight into the potential chemical effects that could occur in the Authority's water distribution system as a result of changing the source of water used for municipal...
Hydrologic Streamflow Conditions for Georgia, 2007
Andrew E. Knaak, John K. Joiner
2008, Fact Sheet 2008-3099
The U.S. Geologic Survey (USGS) Georgia Water Science Center (GaWSC) maintains a long-term hydrologic monitoring network of more than 260 real-time streamflow stations and more than 100 noncontinuous streamflow stations throughout Georgia. This network is operated by the USGS GaWSC in cooperation with more than 50 different partners at Federal,...
Speciation Methods Used to Assess Potential Health Effects of Toxic Metals in Environmental Materials
Ruth E. Wolf, Suzette A. Morman, Geoffrey S. Plumlee
2008, Open-File Report 2008-1350
Assessing potential exposures to toxic metals or metalloids such as arsenic and chromium in environmental materials is important in protecting public health. The chemical form of an element in, or released from, a material is also important, since some forms, such as Cr(VI), are more toxic than others, for example,...
Management and research applications of long-range surveillance radar data for birds, bats, and flying insects
Janet M. Ruth, Jeffrey J. Buler, Robert H. Diehl, Richard S. Sojda
2008, Fact Sheet 2008-3095
There is renewed interest in using long-range surveillance radar as a biological research tool due to substantial improvements in the network of radars within the United States. Technical improvements, the digital nature of the radar data, and the availability of computing power and geographic information systems, enable a broad range...
Ground-water quality data in the coastal Los Angeles Basin study unit, 2006: Results from the California GAMA Program
Timothy M. Mathany, Michael Land, Kenneth Belitz
2008, Data Series 387
Ground-water quality in the approximately 860 square-mile Coastal Los Angeles Basin study unit (CLAB) was investigated from June to November of 2006 as part of the Statewide Basin Assessment Project of the Ground-Water Ambient Monitoring and Assessment (GAMA) Program. The GAMA Statewide Basin Assessment was developed in response to the...
Selected Ground-Water Data for Yucca Mountain Region, Southern Nevada and Eastern California, January-December 2005
Glenn L. Locke
2008, Open-File Report 2008-1265
The U.S. Geological Survey, in cooperation with the U.S. Department of Energy, Office of Civilian Radioactive Waste Management, collected, compiled, and summarized hydrologic data in the Yucca Mountain region of southern Nevada and eastern California. These data were collected to allow assessments of ground-water resources during activities to determine the...
Protocol for Monitoring Fish Assemblages in Pacific Northwest National Parks
Samuel J. Brenkman, Patrick J. Connolly
2008, Techniques and Methods 2-A7
Rivers and streams that drain from Olympic, Mount Rainier, and North Cascades National Parks are among the most protected corridors in the lower 48 States, and represent some of the largest tracts of contiguous, undisturbed habitat throughout the range of several key fish species of the Pacific Northwest. These watersheds...
Report on the Aseismic Slip, Tremor, and Earthquakes Workshop
Joan Gomberg, Evelyn Roeloffs, Anne Trehu, Herb Dragert, Charles Meertens
2008, Open-File Report 2008-1343
This report summarizes the discussions and information presented during the workshop on Aseismic Slip, Tremor, and Earthquakes. Workshop goals included improving coordination among those involved in conducting research related to these phenomena, assessing the implications for earthquake hazard assessment, and identifying ways to capitalize on the education and outreach opportunities...
Floods of August and September 2004 in eastern Ohio: FEMA disaster declaration 1556
Andrew D. Ebner, David E. Straub, Jonathan D. Lageman
2008, Open-File Report 2008-1291
A band of severe thunderstorms at the end of August 2004 and the passage of the remnants of Hurricanes Frances and Ivan during September 2004 caused severe flooding in eastern Ohio during August and September 2004. Record peak streamflow occurred at 12 U.S. Geological Survey (USGS) streamgages. Damages caused by...
Floods of May and June 2004 in central and eastern Ohio: FEMA disaster declaration 1519
Andrew D. Ebner, David E. Straub, Jonathan D. Lageman
2008, Open-File Report 2008-1290
Several severe thunderstorms that passed through Ohio between May 17 and June 17, 2004, produced large amounts of rain in an already wet central and eastern Ohio, resulting in flooding in this region from May 18 to June 21, 2004. Record peak streamflow occurred at three U.S. Geological Survey (USGS)...
Comments on potential geologic and seismic hazards affecting proposed liquefied natural gas site in Santa Monica Bay, California
Stephanie L. Ross, Homa J. Lee, Tom E. Parsons, Larry A. Beyer, David M. Boore, James E. Conrad, Brian D. Edwards, Michael A. Fisher, Arthur D. Frankel, Eric L. Geist, Kenneth W. Hudnut, Susan E. Hough, Robert E. Kayen, T.D. Lorenson, Nicolas Luco, Patricia A. McCrory, Mary McGann, Manuel Nathenson, Michael Nolan, Mark D. Petersen, Daniel J. Ponti, Charles L. Powell II, Holly F. Ryan, John C. Tinsley III, Chris J. Wills, Florence L. Wong, Jingping Xu
2008, Open-File Report 2008-1344
In a letter to the U.S. Geological Survey (USGS) dated March 25, 2008, Representative Jane Harman (California 36th district) requested advice on geologic hazards that should be considered in the review of a proposed liquefied natural gas (LNG) facility off the California coast in Santa Monica Bay. In 2004, the...
Hydraulic and substrate maps of reaches used by sturgeon (Genus Scaphirhynchus) in the Lower Missouri River, 2005-07
Joanna M. Reuter, Robert B. Jacobson, Caroline M. Elliott, Harold E. Johnson III, Aaron J. DeLonay
2008, Data Series 386
This report is a repository of reach-scale maps of hydraulic and substrate characteristics generated for the habitat-use portion of an interdisciplinary sturgeon research project on the Lower Missouri River (from Gavins Point Dam to the junction with the Mississippi River). The maps were derived from hydroacoustic data sets that were...
Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, May 2008
Sandra L. Kinnaman, Joann F. Dixon
2008, Scientific Investigations Map 3056
This map depicts the potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity for May 2008. Potentiometric contours are based on water-level measurements collected at 567 wells during the period May 6-May 27, near the end of the dry season. Some contours...
Origin of meter-size granite basins in the southern Sierra Nevada, California
James G. Moore, Mary A. Gorden, Joel E. Robinson, Barry C. Moring
2008, Scientific Investigations Report 2008-5210
Meter-size granite basins are found in a 180-km belt extending south from the South Fork of the Kings River to Lake Isabella on the west slope of the southern Sierra Nevada, California. Their origin has long been debated. A total of 1,033 basins have been inventoried at 221 sites. The...
Steady and intermittent slipping in a model of landslide motion regulated by pore-pressure feedback
David G. Schaeffer, Richard M. Iverson
2008, SIAM Journal on Applied Mathematics (69) 769-786
This paper studies a parsimonious model of landslide motion, which consists of the one-dimensional diffusion equation (for pore pressure) coupled through a boundary condition to a first-order ODE (Newton's second law). Velocity weakening of sliding friction gives rise to nonlinearity in the model. Analysis shows that solutions of the model...
Seismicity and deformation induced by magma accumulation at three basaltic volcanoes
O. Lengline, David Marsan, J.-L. Got, Virginie Pinel, Valerie Ferrazzini, Paul G. Okubo
2008, Journal of Geophysical Research B: Solid Earth (113)
We analyzed the evolution of volcano‐tectonic (VT) seismicity and deformation at three basaltic volcanoes (Kilauea, Mauna Loa, Piton de la Fournaise) during phases of magma accumulation. We observed that the VT earthquake activity displays an accelerating evolution at the three studied volcanoes during the time of magma accumulation. At the...
Monitoring inland storm surge and flooding from Hurricane Ike in Texas and Louisiana, September 2008
Jeffery W. East, Michael J. Turco, Mason Jr.
2008, Open-File Report 2008-1365
The U.S. Geological Survey (USGS) deployed a temporary monitoring network of 117 pressure transducers (sensors) at 65 sites over an area of about 5,000 square miles to record the timing, areal extent, and magnitude of inland hurricane storm surge and coastal flooding generated by Hurricane Ike, which struck southeastern Texas...
Geophysical Log Database for the Mississippi Embayment Regional Aquifer Study (MERAS)
Rheannon M. Hart, Brian R. Clark
2008, Scientific Investigations Report 2008-5192
The Mississippi Embayment Regional Aquifer Study (MERAS) is an investigation of ground-water availability and sustainability within the Mississippi embayment as part of the U.S. Geological Survey Ground-Water Resources Program. The MERAS area consists of approximately 70,000 square miles and encompasses parts of eight states including Alabama, Arkansas, Illinois, Kentucky, Louisiana,...
Bathymetric and hydraulic survey of the Matanuska River near Circle View Estates, Alaska
Jeffrey S. Conaway
2008, Open-File Report 2008-1359
An acoustic Doppler current profiler interfaced with a differentially corrected global positioning system was used to map bathymetry and multi-dimensional velocities on the Matanuska River near Circle View Estates, Alaska. Data were collected along four spur dikes and a bend in the river during a period of active bank erosion....
Atmospheric Deposition and Surface-Water Chemistry in Mount Rainier and North Cascades National Parks, U.S.A., Water Years 2000 and 2005-2006
David W. Clow, Donald H. Campbell
2008, Scientific Investigations Report 2008-5152
High-elevation aquatic ecosystems in Mount Rainier and North Cascades National Parks are highly sensitive to atmospheric deposition of nitrogen and sulfur. Thin, rocky soils promote fast hydrologic flushing rates during snowmelt and rain events, limiting the ability of basins to neutralize acidity and assimilate nitrogen deposited from the atmosphere. Potential...
Current (2004-07) conditions and changes in ground-water levels from predevelopment to 2007, Southern High Plains aquifer, east-central New Mexico: Curry County, Portales, and Causey Lingo underground water basins
Anne Tillery
2008, Scientific Investigations Map 3038
The Southern High Plains aquifer is the principal aquifer in Curry and Roosevelt Counties, N. Mex., and primary source of water in southeastern New Mexico. Successful water-supply planning for New Mexico's Southern High Plains requires knowledge of the current aquifer conditions and a context to estimate future trends given current...
