Macroinvertebrate-based assessment of biological condition at selected sites in the Eagle River watershed, Colorado, 2000-07
Robert E. Zuellig, James F. Bruce, Brian D. Healy, Cory A. Williams
2010, Scientific Investigations Report 2010-5148
The U.S. Geological Survey (USGS), in cooperation with the Colorado River Water Conservation District, Eagle County, Eagle River Water and Sanitation District, Upper Eagle Regional Water Authority, Colorado Department of Transportation, City of Aurora, Town of Eagle, Town of Gypsum, Town of Minturn, Town of Vail, Vail Resorts, Colorado Springs...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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:...
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...
Monitoring very-long-period seismicity at Kilauea Volcano, Hawaii
Phillip B. Dawson, M. C. Benitez, Bernard A. Chouet, David Wilson, Paul G. Okubo
2010, Geophysical Research Letters (37)
On 19 March, 2008 eruptive activity returned to the summit of Kilauea Volcano, Hawaii with the formation of a new vent within the Halemaumau pit crater. The new vent has been gradually increasing in size, and exhibiting sustained degassing and the episodic bursting of gas slugs at the surface of...
King eider use an income strategy for egg production: a case study for incorporating individual dietary variation into nutrient allocation research
Steffen Oppel, Abby N. Powell, Diane M. O’Brien
2010, Oecologia (164) 1-12
The use of stored nutrients for reproduction represents an important component of life-history variation. Recent studies from several species have used stable isotopes to estimate the reliance on stored body reserves in reproduction. Such approaches rely on population-level dietary endpoints to characterize stored reserves (“capital”) and current diet (“income”). Individual...
Effects of low-impact-development (LID) practices on streamflow, runoff quantity, and runoff quality in the Ipswich River Basin, Massachusetts: A summary of field and modeling studies
Marc J. Zimmerman, Marcus C. Waldron, Jeffrey R. Barbaro, Jason R. Sorenson
2010, Circular 1361
Low-impact-development (LID) approaches are intended to create, retain, or restore natural hydrologic and water-quality conditions that may be affected by human alterations. Wide-scale implementation of LID techniques may offer the possibility of improving conditions in river basins, such as the Ipswich River Basin in Massachusetts, that have run dry during...
Decision analysis framing study: In-valley drainage management strategies for the western San Joaquin Valley, California
Theresa S. Presser, Karen E. Jenni, Timothy Nieman, James Coleman
2010, Open-File Report 2009-1121
Constraints on drainage management in the western San Joaquin Valley and implications of proposed approaches to management were recently evaluated by the U.S. Geological Survey (USGS). The USGS found that a significant amount of data for relevant technical issues was available and that a structured, analytical decision support tool could...
Water quality and ecological condition of urban streams in Independence, Missouri, June 2005 through December 2008
D. Christensen, Thomas E. Harris, Shelley L. Niesen
2010, Scientific Investigations Report 2010-5074
To identify the sources of selected constituents in urban streams and better understand processes affecting water quality and their effects on the ecological condition of urban streams and the Little Blue River in Independence, Missouri the U.S. Geological Survey in cooperation with the City of Independence Water Pollution Control Department...
Connecticut Highlands technical report— Documentation of the regional rainfall-runoff model
Elizabeth A. Ahearn, David M. Bjerklie
2010, Open-File Report 2010-1187
This report provides the supporting data and describes the data sources, methodologies, and assumptions used in the assessment of existing and potential water resources of the Highlands of Connecticut and Pennsylvania (referred to herein as the “Highlands”). Included in this report are Highlands groundwater and surface-water use data and the...
Steady-state and transient models of groundwater flow and advective transport, Eastern Snake River Plain aquifer, Idaho National Laboratory and vicinity, Idaho
Daniel J. Ackerman, Joseph P. Rousseau, Gordon W. Rattray, Jason C. Fisher
2010, Scientific Investigations Report 2010-5123
Three-dimensional steady-state and transient models of groundwater flow and advective transport in the eastern Snake River Plain aquifer were developed by the U.S. Geological Survey in cooperation with the U.S. Department of Energy. The steady-state and transient flow models cover an area of 1,940 square miles that includes most of...
Recent (2001-09) hydrologic history and regionalization studies in Texas-Statistical characterization of storms, floods, and rainfall-runoff relations
William H. Asquith
2010, Fact Sheet 2010-3063
As part of numerous cooperative studies investigating rainfall and streamflow during 1991-2009 with the Texas Department of Transportation and Texas Commission on Environmental Quality, the U.S. Geological Survey (USGS) published about 20 reports describing either historical streamflow conditions (hydrologic history) in Texas or the results of studies involving regional rainfall...
High-resolution seismic-reflection data offshore of Dana Point, southern California borderland
Ray W. Sliter, Holly F. Ryan, Peter J. Triezenberg
2010, Open-File Report 2010-1111
The U.S. Geological Survey collected high-resolution shallow seismic-reflection profiles in September 2006 in the offshore area between Dana Point and San Mateo Point in southern Orange and northern San Diego Counties, California. Reflection profiles were located to image folds and reverse faults associated with the San Mateo fault zone and...
Biostratigraphy of the San Joaquin Formation in borrow-source area B-17, Kettleman Hills landfill, North Dome, Kettleman Hills, Kings County, California
Charles L. Powell II, Lanny H. Fisk, David F. Maloney, David M. Haasl
2010, Open-File Report 2010-1140
The stratigraphic occurrences and interpreted biostratigraphy of invertebrate fossil taxa in the upper San Joaquin Formation and lower-most Tulare Formation encountered at the Chemical Waste Management Kettleman Hills waste disposal facility on the North Dome of the Kettleman Hills, Kings County, California are documented. Significant new findings include (1) a...
Fluorine, fluorite, and fluorspar in central Colorado
Alan R. Wallace
2010, Scientific Investigations Report 2010-5113
Fluorine (F) is a widespread element that was deposited in a variety of rocks, minerals, and geologic environments in central Colorado. It occurs as a trace element, as a major component of the mineral fluorite (CaFs), and as a major economic source of fluorine in fluorspar deposits, which are massive...
