Grassland birds wintering at U.S. Navy facilities in southern Texas
Marc C. Woodin, Mary Kay Skoruppa, Pearce D. Bryan, Amanda J. Ruddy, Graham C. Hickman
2010, Open-File Report 2010-1115
Grassland birds have undergone widespread decline throughout North America during the past several decades. Causes of this decline include habitat loss and fragmentation because of conversion of grasslands to cropland, afforestation in the East, brush and shrub invasion in the Southwest and western United States, and planting of exotic grass...
Evaluating the feasibility of modeling the subsurface structure of two volcanic units in drill holes UE-18r and ER-EC-2a using existing magnetic data, Nevada Test Site
G. A. Phelps
2010, Open-File Report 2010-1112
The magnetic properties of two volcanic units encountered in two drill holes, ER-EC-2a and UE18r, located in the vicinity of the Nevada Test Site, were investigated to determine if the units were significantly more magnetic than overlying units and, thus, detectable by using aeromagnetic data. Magnetic-susceptibility measurements were made on...
Fort Collins Science Center-Fiscal year 2009 science accomplishments
Juliette T. Wilson (compiler)
2010, Open-File Report 2010-1148
Public land and natural resource managers in the United States are confronted with increasingly complex decisions that have important ramifications for both ecological and human systems. The scientists and technical professionals at the U.S. Geological Survey Fort Collins Science Center?many of whom are at the forefront of their fields?possess a...
Effects of Glen Canyon Dam discharges on water velocity and temperatures at the confluence of the Colorado and Little Colorado Rivers and implications for habitat for young-of-year humpback chub (Gila cypha)
Frank R. Protiva, Barbara E. Ralston, Dennis M. Stone, Keith A. Kohl, Michael D. Yard, G. Allen Haden
2010, Open-File Report 2010-1137
Water velocity and temperature are physical variables that affect the growth and survivorship of young-of-year (YOY) fishes. The Little Colorado River, a tributary to the Colorado River in Grand Canyon, is an important spawning ground and warmwater refuge for the endangered humpback chub (Gila cypha) from the colder mainstem Colorado...
Spatial Databases of Geological, Geophysical, and Mineral Resource Data Relevant to Sandstone-Hosted Copper Deposits in Central Kazakhstan
Boris Syusyura, Stephen E. Box, John C. Wallis
2010, Open-File Report 2010-1124
Central Kazakhstan is host to one of the world's giant sandstone-hosted copper deposits, the Dzhezkazgan deposit, and several similar, smaller deposits. The United Stated Geological Survey (USGS) is assessing the potential for other, undiscovered deposits of this type in the surrounding region of central Kazakhstan. As part of this effort,...
Preliminary assessment of factors influencing riverine fish communities in Massachusetts
David S. Armstrong, Todd A. Richards, Sara L. Brandt
2010, Open-File Report 2010-1139
The U.S. Geological Survey, in cooperation with the Massachusetts Department of Conservation and Recreation (MDCR), Massachusetts Department of Environmental Protection (MDEP), and the Massachusetts Department of Fish and Game (MDFG), conducted a preliminary investigation of fish communities in small- to medium-sized Massachusetts streams. The objective of this investigation was to...
A rapid method for creating qualitative images indicative of thick oil emulsion on the ocean's surface from imaging spectrometer data
Raymond F. Kokaly, Todd M. Hoefen, K. Eric Livo, Gregg A. Swayze, Ira Leifer, Ian B. McCubbin, Michael L. Eastwood, Robert O. Green, Sarah R. Lundeen, Charles M. Sarture, Denis Steele, Thomas Ryan, Eliza S. Bradley, Dar A. Roberts, AVIRIS Team
2010, Open-File Report 2010-1107
This report describes a method to create color-composite images indicative of thick oil:water emulsions on the surface of clear, deep ocean water by using normalized difference ratios derived from remotely sensed data collected by an imaging spectrometer. The spectral bands used in the normalized difference ratios are located in wavelength...
Assembling probabilistic performance parameters of shale-gas wells
Troy Cook, Ronald R. Charpentier
2010, Open-File Report 2010-1138
Shale-gas well productivity estimates in USGS assessments from 1995 to present are based on studies that require decline curve fits and analysis to a large sample or to all wells within a particular assessment unit. Probabilistic type curves can be created on nearly any size well group and were designed...
Reserve growth during financial volatility in a technologically challenging world
Timothy R. Klett, Donald L. Gautier
2010, Open-File Report 2010-1145
Reserve growth (growth-to-known) is the addition of oil and gas quantities to reported proved or proved-plus-probable reserves in discovered fields. The amount of reserve growth fluctuates through time with prevailing economic and technological conditions. Most reserve additions are the result of investment in field operations and in development technology. These...
Applying probabilistic well-performance parameters to assessments of shale-gas resources
Ronald R. Charpentier, Troy Cook
2010, Open-File Report 2010-1151
In assessing continuous oil and gas resources, such as shale gas, it is important to describe not only the ultimately producible volumes, but also the expected well performance. This description is critical to any cost analysis or production scheduling. A probabilistic approach facilitates (1) the inclusion of variability in well...
Program and abstracts of the Second Tsunami Source Workshop; July 19-20, 2010
W.H.K. Lee (compiler), S. H. Kirby, M. F. Diggles
2010, Open-File Report 2010-1152
In response to a request by the National Oceanic and Atmospheric Administration (NOAA) for computing tsunami propagations in the western Pacific, Eric Geist asked Willie Lee for assistance in providing parameters of earthquakes which may be future tsunami sources. The U.S. Geological Survey (USGS) Tsunami Source Working Group (TSWG) was...
Hawaiian Volcano Observatory seismic data, January to March 2009
Jennifer S. Nakata, Paul G. Okubo
2010, Open-File Report 2010-1079
This U.S. Geological Survey (USGS), Hawaiian Volcano Observatory (HVO) summary presents seismic data gathered during January–March 2009. The seismic summary offers earthquake hypocenters without interpretation as a source of preliminary data and is complete in that most data for events of M≥1.5 are included. All latitude and longitude references in...
Practical guidelines to select and scale earthquake records for nonlinear response history analysis of structures
Erol Kalkan, Anil K. Chopra
2010, Open-File Report 2010-1068
Earthquake engineering practice is increasingly using nonlinear response history analysis (RHA) to demonstrate performance of structures. This rigorous method of analysis requires selection and scaling of ground motions appropriate to design hazard levels. Presented herein is a modal-pushover-based scaling (MPS) method to scale ground motions for use in nonlinear...
Three-dimensional geologic model of the Arbuckle-Simpson aquifer, south-central Oklahoma
Jason R. Faith, Charles D. Blome, Michael P. Pantea, James O. Puckette, Todd Halihan, Noel Osborn, Scott Christenson, Skip Pack
2010, Open-File Report 2010-1123
The Arbuckle-Simpson aquifer of south-central Oklahoma encompasses more than 850 square kilometers and is the principal water resource for south-central Oklahoma. Rock units comprising the aquifer are characterized by limestone, dolomite, and sandstones assigned to two lower Paleozoic units: the Arbuckle and Simpson Groups. Also considered to be part of...
Digital tabulation of stratigraphic data from oil and gas wells in the Santa Maria Basin and surrounding areas, central California coast
Donald S. Sweetkind, Marilyn E. Tennyson, Victoria E. Langenheim, Lauren E. Shumaker
2010, Open-File Report 2010-1129
Stratigraphic information from 694 oil and gas exploration wells from the onshore Santa Maria basin and surrounding areas are herein compiled in digital form from reports that were released originally in paper form. The Santa Maria basin is located within the southwesternmost part of the Coast Ranges and north of...
Surficial geology of the sea floor in Long Island Sound offshore of Plum Island, New York
K.Y. McMullen, L.J. Poppe, W. W. Danforth, D.S. Blackwood, J.D. Schaer, A.J. Ostapenko, K.A. Glomb, E. F. Doran
2010, Open-File Report 2010-1005
The U.S. Geological Survey (USGS), the Connecticut Department of Environmental Protection, and the National Oceanic and Atmospheric Administration (NOAA) have been working cooperatively to interpret surficial sea-floor geology along the coast of the Northeastern United States. NOAA survey H11445 in eastern Long Island Sound, offshore of Plum Island, New York,...
Environmental flow studies of the Fort Collins Science Center— Cherry Creek, Arizona
Terry J. Waddle, Ken D. Bovee
2010, Open-File Report 2009-1272
At the request of the U.S. Forest Service, an instream flow assessment was conducted at Cherry Creek, Ariz., to investigate habitat for native and introduced fish species and to describe the beneficial use of a possible instream flow water right. The U.S. Geological Survey (USGS) Fort Collins Science Center performed...
Public Review Draft: A Method for Assessing Carbon Stocks, Carbon Sequestration, and Greenhouse-Gas Fluxes in Ecosystems of the United States Under Present Conditions and Future Scenarios
Brian A. Bergamaschi, Richard Bernknopf, David Clow, Dennis Dye, Stephen Faulkner, William Forney, Robert Gleason, Todd Hawbaker, Jinxun Liu, Shu-Guang Liu, Stephen Prisley, Bradley Reed, Matthew Reeves, Matthew Rollins, Benjamin Sleeter, Terry Sohl, Sarah Stackpoole, Stephen Stehman, Robert G. Striegl, Anne Wein, Zhi-Liang Zhu
Zhi-Liang Zhu, editor(s)
2010, Open-File Report 2010-1144
The Energy Independence and Security Act of 2007 (EISA), Section 712, authorizes the U.S. Department of the Interior to develop a methodology and conduct an assessment of the Nation's ecosystems focusing on carbon stocks, carbon sequestration, and emissions of three greenhouse gases (GHGs): carbon dioxide, methane, and nitrous oxide. The...
Thermal Imaging of the Waccasassa Bay Preserve: Image Acquisition and Processing
Ellen A. Raabe, Elzbieta Bialkowska-Jelinska
2010, Open-File Report 2010-1120
Thermal infrared (TIR) imagery was acquired along coastal Levy County, Florida, in March 2009 with the goal of identifying groundwater-discharge locations in Waccasassa Bay Preserve State Park (WBPSP). Groundwater discharge is thermally distinct in winter when Floridan aquifer temperature, 71-72 degrees F, contrasts with the surrounding cold surface waters. Calibrated...
A Review of Aeromagnetic Anomalies in the Sawatch Range, Central Colorado
Viki Bankey
2010, Open-File Report 2010-1095
This report contains digital data and image files of aeromagnetic anomalies in the Sawatch Range of central Colorado. The primary product is a data layer of polygons with linked data records that summarize previous interpretations of aeromagnetic anomalies in this region. None of these data files and images are new;...
Initial Results from a Study of Climatic Changes and the Effect on Wild Sheep Habitat in Selected Study Areas of Alaska
Edwin Pfeifer, Jana Ruhlman, Barry Middleton, Dennis Dye, Alex Acosta
2010, Open-File Report 2010-1135
Climate change theorists have projected striking changes in local weather on earth due to increases in temperature. These predicted changes may cause melting glaciers and ice caps, rising sea levels, increasing desertification and other environmental changes which seem likely to affect presumed indicator species as harbingers of more significant changes....
Historical Zinc Smelting in New Jersey, Pennsylvania, Virginia, West Virginia, and Washington, D.C., with Estimates of Atmospheric Zinc Emissions and Other Materials
Donald I. Bleiwas, Carl DiFrancesco
2010, Open-File Report 2010-1131
The metallurgical industry can be broadly divided into metal production from feedstock consisting of primary and secondary sources. Primary production refers to the extraction of metal derived from ores and concentrates. Secondary production refers to the recovery of metal from materials such as alloys, electric arc furnace dust, ingots, and...
Detailed Sections from Auger Holes in the Emporia 1:100,000-Scale Quadrangle, North Carolina and Virginia
Robert E. Weems, J. Stephen Schindler, William C. Lewis
2010, Open-File Report 2010-1121
The Emporia 1:100,000-scale quadrangle straddles the Tidewater Fall Line in southern Virginia and includes a small part of northernmost North Carolina. Sediments of the coastal plain underlie the eastern three-fifths of this area. These sediments onlap crystalline basement rocks toward the west and dip gently to the east, reaching a...
Sediment-transport during three controlled-flood experiments on the Colorado River downstream from Glen Canyon Dam, with implications for eddy-sandbar deposition in Grand Canyon National Park
David J. Topping, David M. Rubin, Paul E. Grams, Ronald E. Griffiths, Thomas A. Sabol, Nicholas Voichick, Robert B. Tusso, Karen M. Vanaman, Richard R. McDonald
2010, Open-File Report 2010-1128
Three large-scale field experiments were conducted on the Colorado River downstream from Glen Canyon Dam in 1996, 2004, and 2008 to evaluate whether artificial (that is, controlled) floods released from the dam could be used in conjunction with the sand supplied by downstream tributaries to rebuild and sustainably maintain eddy...
Floods of May and June 2008 in Iowa
Robert C. Buchmiller, David A. Eash
2010, Open-File Report 2010-1096
An unusually wet winter and spring of 2007 to 2008 resulted in extremely wet antecedent conditions throughout most of Iowa. Rainfall of 5 to 15 inches was observed in eastern Iowa during May 2008, and an additional 5 to 15 inches of rain was observed throughout most of Iowa in...
