Estuarine sedimentation, sediment character, and foraminiferal distribution in central San Francisco Bay, California
John L. Chin, Donald L. Woodrow, Mary McGann, Florence L. Wong, Theresa A. Fregoso, Bruce E. Jaffe
2010, Open-File Report 2010-1130
Central San Francisco Bay is the deepest subembayment in the San Francisco Bay estuary and hence has the largest water volume of any of the subembayments. It also has the strongest tidal currents and the coarsest sediment within the estuary. Tidal currents are strongest over the west-central part of central...
A method for land surveying sampling optimization strategy
Junping Zhang, Xiaowen Nie, Yueming Hu, Shuguang Liu, Yuan Tian, Lun Wu
2010, Conference Paper, 2010 18th International conference on geoinformatics
At present, how to select a limited but representative sample dataset from the existing land information database to guide the new round of land survey and assessment sampling is a critical issue for land sampling strategy study. As a case study to determine and analyze the sample capacity and sample...
Sampling protocol for post-landfall Deepwater Horizon oil release, Gulf of Mexico, 2010
F.D. Wilde, S. C. Skrobialowski, J.S. Hart
2010, Open-File Report 2010-1191
The protocols and procedures described in this report are designed to be used by U.S. Geological Survey (USGS) field teams for the collection of environmental data and samples in coastal areas affected by the 2010 Deepwater Horizon oil spill in the Gulf of Mexico. This sampling protocol focuses specifically on...
Magnitude and extent of flooding at selected river reaches in western Washington, January 2009
M. C. Mastin, A.S. Gendaszek, C.R. Barnas
2010, Scientific Investigations Report 2010-5177
A narrow plume of warm, moist tropical air produced prolonged precipitation and melted snow in low-to-mid elevations throughout western Washington in January 2009. As a result, peak-of-record discharges occurred at many long-term streamflow-gaging stations in the region. A disaster was declared by the President for eight counties in Washington State...
Status and understanding of groundwater quality in the North San Francisco Bay groundwater basins, 2004: California GAMA Priority Basin Project
Justin T. Kulongoski, Kenneth Belitz, Matthew K. Landon, Christopher Farrar
2010, Scientific Investigations Report 2010-5089
Groundwater quality in the approximately 1,000-square-mile (2,590-square-kilometer) North San Francisco Bay study unit was investigated as part of the Priority Basin Project of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The study unit is located in northern California in Marin, Napa, and Sonoma Counties. The GAMA Priority Basin Project...
Weighted regressions on time, discharge, and season (WRTDS), with an application to Chesapeake Bay River inputs
Robert M. Hirsch, Douglas Moyer, Stacey A. Archfield
2010, Journal of the American Water Resources Association (46) 857-880
A new approach to the analysis of long‐term surface water‐quality data is proposed and implemented. The goal of this approach is to increase the amount of information that is extracted from the types of rich water‐quality datasets that now exist. The method is formulated to allow for maximum flexibility in...
The complex future of hydrogeology
Devin L. Galloway
2010, Hydrogeology Journal (18) 807-810
No abstract available....
Emergency assessments of postfire debris-flow hazards for the 2009 La Brea, Jesusita, Guiberson, Morris, Sheep, Oak Glen, Pendleton, and Cottonwood fires in southern California
Susan H. Cannon, Joseph E. Gartner, Michael G. Rupert, John A. Michael
2010, Open-File Report 2010-1186
This report presents an emergency assessment of potential debris-flow hazards from basins burned by the 2009 La Brea and Jesusita fires in Santa Barbara County, the Guiberson fire in Ventura County, the Morris fire in Los Angeles County, the Sheep, Oak Glen, and Pendleton fires in San Bernardino County, and...
Bedload-surrogate monitoring technologies
John R. Gray, Jonathan B. Laronne, Jeffrey D. G. Marr
2010, Scientific Investigations Report 2010-5091
Advances in technologies for quantifying bedload fluxes and in some cases bedload size distributions in rivers show promise toward supplanting traditional physical samplers and sampling methods predicated on the collection and analysis of physical bedload samples. Four workshops held from 2002 to 2007 directly or peripherally addressed bedload-surrogate technologies, and...
CoalVal-A coal resource valuation program
Timothy J. Rohrbacher, Gary E. McIntosh
2010, Open-File Report 2009-1282
CoalVal is a menu-driven Windows program that produces cost-of-mining analyses of mine-modeled coal resources. Geological modeling of the coal beds and some degree of mine planning, from basic prefeasibility to advanced, must already have been performed before this program can be used. United States Geological Survey mine planning is done...
Porphyry copper deposit model
Robert A. Ayuso, Mark D. Barton, Richard J. Blakely, Robert J. Bodnar, John H. Dilles, Floyd Gray, Fred T. Graybeal, John L. Mars, Darcy McPhee, Robert R Seal, Ryan D. Taylor, Peter G. Vikre
David A. John, editor(s)
2010, Scientific Investigations Report 2010-5070-B
This report contains a revised descriptive model of porphyry copper deposits (PCDs), the world's largest source (about 60 percent) and resource (about 65 percent) of copper and a major source of molybdenum, gold and silver. Despite relatively low grades (average 0.44 percent copper in 2008), PCDs have significant economic and...
Using prediction uncertainty analysis to design hydrologic monitoring networks: Example applications from the Great Lakes water availability pilot project
Michael N. Fienen, John E. Doherty, Randall J. Hunt, Howard W. Reeves
2010, Scientific Investigations Report 2010-5159
The importance of monitoring networks for resource-management decisions is becoming more recognized, in both theory and application. Quantitative computer models provide a science-based framework to evaluate the efficacy and efficiency of existing and possible future monitoring networks. In the study described herein, two suites of tools were used to evaluate...
Source, Use, and Disposition of Freshwater in Puerto Rico, 2005
Wanda L. Molina-Rivera
2010, Fact Sheet 2009-3080
Water diverted from streams and pumped from wells constitutes the main sources of water for the 78 municipios of the Commonwealth of Puerto Rico. A better understanding is needed about water-use patterns, particularly about the amount of water used, where and how this water is used and disposed, and how...
Hydrologic conditions and water quality of rainfall and storm runoff for two agricultural areas of the Oso Creek watershed, Nueces County, Texas, 2005-08
Darwin J. Ockerman, Carlos J. Fernandez
2010, Scientific Investigations Report 2010-5136
The U.S. Geological Survey, in cooperation with the Texas State Soil and Water Conservation Board, Coastal Bend Bays and Estuaries Program, and Texas AgriLife Research and Extension Center at Corpus Christi, studied hydrologic conditions and water quality of rainfall and storm runoff of two primarily agricultural subwatersheds of the Oso...
Groundwater quality in the North San Francisco Bay groundwater basins, California
Justin T. Kulongoski, Kenneth Belitz
2010, Fact Sheet 2010-3060
Groundwater provides more than 40 percent of California's drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State's groundwater quality and increases public access to...
Atmospheric mineral dust in dryland ecosystems: Applications of environmental magnetism
Richard L. Reynolds, Harland L. Goldstein, Mark E. Miller
2010, Geochemistry, Geophysics, Geosystems (11)
Magnetic properties of shallow (<10‐cm depth), fine‐grained surficial sediments contrast greatly with those of immediately underlying bedrock across much of the dry American Southwest. At 26 study sites in fine‐grained (<63 μm) surficial sediments isolated from alluvial inputs, isothermal remanent magnetization (IRM; mean of 67 samples = 6.72 × 10−3 Am2 kg−1) is...
Geochemical data for Colorado soils: Results from the 2006 state-scale geochemical survey
David B. Smith, Karl J. Ellefsen, James E. Kilburn
2010, Data Series 520
In 2006, soil samples were collected at 960 sites (1 site per 280 square kilometers) throughout the state of Colorado. These samples were collected from a depth of 0-15 centimeters and, following a near-total multi-acid digestion, were analyzed for a suite of more than 40 major and trace elements. The...
Simulated effects of groundwater pumping and artificial recharge on surface-water resources and riparian vegetation in the Verde Valley sub-basin, Central Arizona
Stanley A. Leake, Donald R. Pool
2010, Scientific Investigations Report 2010-5147
In the Verde Valley sub-basin, groundwater use has increased in recent decades. Residents and stakeholders in the area have established several groups to help in planning for sustainability of water and other resources of the area. One of the issues of concern is the effect of groundwater pumping in the...
EAARL coastal topography-eastern Florida, post-Hurricane Frances, 2004: bare earth
Xan Yates, Amar Nayegandhi, Jamie M. Bonisteel, C. Wayne Wright, A. H. Sallenger, John Brock, Emily S. Klipp, David B. Nagle
2010, Data Series 528
This DVD contains lidar-derived bare-earth (BE) topography GIS datasets of a portion of the eastern Florida coastline beachface, acquired post-Hurricane Frances on September 9, 2004....
Using land-cover change as dynamic variables in surface-water and water-quality models
Krista A. Karstensen, Kelly L. Warner, Anne Kuhn
2010, General Information Product 110
Land-cover data are typically used in hydrologic modeling to establish or describe land surface dynamics. This project is designed to demonstrate the use of land-cover change data in surface-water and water-quality models by incorporating land-cover as a variable condition. The project incorporates three different scenarios that vary hydrologically and geographically:...
Geology, geochemistry, and geophysics of the Fry Canyon uranium/copper project site, southeastern Utah: Indications of contaminant migration
James K. Otton, Robert A. Zielinski, Robert Horton
2010, Scientific Investigations Report 2010-5075
The Fry Canyon uranium/copper project site in San Juan County, southeastern Utah, was affected by the historical (1957–68) processing of uranium and copper-uranium ores. Relict uranium tailings and related ponds, and a large copper heap-leach pile at the site represent point sources of uranium and copper to local soils, surface...
Trends in base flow, total flow, and base-flow index of selected streams in and near Oklahoma through 2008
Rachel A. Esralew, Jason M. Lewis
2010, Scientific Investigations Report 2010-5104
The U.S. Geological Survey, in cooperation with the Oklahoma Water Resources Board, investigated trends in base flow, total flow, and base-flow index of selected streams in Oklahoma and evaluated possible causes for trends. Thirty-seven streamflow-gaging stations that had unregulated or moderately regulated streamflow were selected for trend analysis. Statistical evaluation of...
EAARL coastal topography-eastern Florida, post-Hurricane Frances, 2004: first surface
Xan Yates, Amar Nayegandhi, Jamie M. Bonisteel, C. Wayne Wright, A. H. Sallenger, John Brock, Emily S. Klipp, David B. Nagle
2010, Data Series 527
This DVD contains lidar-derived first-surface (FS) topography GIS datasets of a portion of the eastern Florida coastline beachface, acquired post-Hurricane Frances on September 9, 2004....
EAARL coastal topography-Gateway National Recreation Area, New Jersey and New York, 2009
Amar Nayegandhi, Saisudha Vivekanandan, John Brock, Sara Stevens, C. Wayne Wright, Jamie M. Bonisteel, David B. Nagle, Xan Yates, Emily S. Klipp
2010, Data Series 525
This DVD contains lidar-derived bare-earth (BE) and first-surface (FS) topography GIS datasets of a portion of the Gateway National Recreation Area in New Jersey and New York. These datasets were acquired July 8-9, 2009....
ePRISM: A case study in multiple proxy and mixed temporal resolution integration
Marci M. Robinson, Harry J. Dowsett
2010, Stratigraphy (7) 177-187
As part of the Pliocene Research, Interpretation and Synoptic Mapping (PRISM) Project, we present the ePRISM experiment designed I) to provide climate modelers with a reconstruction of an early Pliocene warm period that was warmer than the PRISM interval (similar to 3.3 to 3.0 Ma), yet still similar in many...
