Landscape Features Shape Genetic Structure in Threatened Northern Spotted Owls
W. Chris Funk, Eric D. Forsman, Thomas D. Mullins, Susan M. Haig
2008, Open-File Report 2008-1240
Several recent studies have shown that landscape features can strongly affect spatial patterns of gene flow and genetic variation. Understanding landscape effects on genetic variation is important in conservation for defining management units and understanding movement patterns. The landscape may have little effect on gene flow, however, in highly mobile...
Data to support statistical modeling of instream nutrient load based on watershed attributes, southeastern United States, 2002
Anne B. Hoos, Silvia Terziotti, Gerard McMahon, Katerina Savvas, Kirsten C. Tighe, Ruth Alkons-Wolinsky
2008, Open-File Report 2008-1163
This report presents and describes the digital datasets that characterize nutrient source inputs, environmental characteristics, and instream nutrient loads for the purpose of calibrating and applying a nutrient water-quality model for the southeastern United States for 2002. The model area includes all of the river basins draining to the south...
Surficial Geologic Map of the Worcester North-Oxford- Wrentham-Attleboro Nine-Quadrangle Area in South- Central Massachusetts
Byron D. Stone, Janet Radway Stone, Mary L. DiGiacomo-Cohen
2008, Open-File Report 2006-1260-D
The surficial geologic map layer shows the distribution of nonlithified earth materials at land surface in an area of nine 7.5-minute quadrangles (417 mi2 total) in south-central Massachusetts (fig. 1). Across Massachusetts, these materials range from a few feet to more than 500 ft in thickness. They overlie bedrock, which...
Influence of the Houma Navigation Canal on Salinity Patterns and Landscape Configuration in Coastal Louisiana
Gregory D. Steyer, Charles Sasser, Elaine Evers, Erick Swenson, Glenn Suir, Sijan Sapkota
2008, Open-File Report 2008-1127
Coastal Louisiana is a dynamic and ever changing landscape. From 1956 to 2004, over 297,000 ha of Louisiana's coastal wetlands were lost because of the effects of natural and human-induced activities. Studies show that, in 2005, Hurricanes Katrina and Rita transformed over 56,200 ha of wetlands to open water in...
Simulation of contributing areas and surface-water leakage to potential replacement wells near the community of New Post, Sawyer County, Wisconsin, by means of a two-dimensional ground-water flow model
Paul F. Juckem, Randall J. Hunt
2008, Open-File Report 2008-1133
A two-dimensional, steady-state ground-water-flow model of the shallow ground-water-flow system near the community of New Post, Sawyer County, Wis., was refined from an existing model of the area. Hydraulic-conductivity and recharge values were not changed from the existing model for the scenario simulations described in this report. Rather, the model...
Digital elevation models of the Pre-Eruption 2000 Crater and 2004-07 Dome-Building Eruption at Mount St. Helens, Washington, USA
James A. Messerich, Steve P. Schilling, Ren A. Thompson
2008, Open-File Report 2008-1169
Presented in this report are 27 digital elevation model (DEM) datasets for the crater area of Mount St. Helens. These datasets include pre-eruption baseline data collected in 2000, incremental model subsets collected during the 2004–07 dome building eruption, and associated shaded-relief image datasets. Each dataset was collected photogrammetrically with digital...
Vegetation Types in Coastal Louisiana in 2007
Charles E. Sasser, Jenneke M. Visser, Edmond Mouton, Jeb Linscombe, Steve B. Hartley
2008, Open-File Report 2008-1224
During the summer and fall of 2007, the U.S. Geological Survey, the Louisiana State University Agricultural Center, and the Louisiana Department of Wildlife and Fisheries Fur and Refuge Division jointly completed an aerial survey to collect data on 2007 vegetation types in coastal Louisiana. The current map presents the data...
Reconnaissance of persistent and emerging contaminants in the Shenandoah and James River Basins, Virginia, during Spring of 2007
David A. Alvarez, Walter Cranor, Stephanie D. Perkins, Vickie Schroeder, Stephen Werner, Edward Furlong, Donald Kain, Robert Brent
2008, Open-File Report 2008-1231
Fish exhibiting external lesions, incidences of intersex, and death have recently been observed in the Shenandoah and James River Basins. These basins are characterized by widespread agriculture (intensive in some areas), several major industrial discharges, numerous sewage treatment plant discharges, and urban, transportation, and residential growth that has increased rapidly...
Water-quality data at amphibian research sites in Maryland, Washington, D.C., and Virginia, 2005-2007
Karen C. Rice
2008, Open-File Report 2008-1204
Data on the chemical composition of water were collected at least once from 47 amphibian research sites in Maryland, Washington, D.C., and Virginia, from 2005 through 2007. One hundred twenty-five water samples were collected from vernal pools and streams and analyzed as part of long-term monitoring projects of the U.S....
Sea-floor character and sedimentary processes in the vicinity of Woods Hole, Massachusetts
Lawrence J. Poppe, Katherine Y. McMullen, David S. Foster, Dann S. Blackwood, S. Jeffress Williams, Seth D. Ackerman, Steven R. Barnum, Rick T. Brennan
2008, Open-File Report 2008-1004
Continuous-coverage multibeam bathymetric models and sidescan-sonar imagery have been verified with high-resolution seismic-reflection profiles, sediment sampling, and bottom photography. Together these data layers provide detailed base maps that yield topographic, compositional, and environmental perspectives of the sea floor in the vicinity of Woods Hole, an important harbor and major passage...
Landslide and Land Subsidence Hazards to Pipelines
Rex L. Baum, Devin L. Galloway, Edwin L. Harp
2008, Open-File Report 2008-1164
Landslides and land subsidence pose serious hazards to pipelines throughout the world. Many existing pipeline corridors and more and more new pipelines cross terrain that is affected by either landslides, land subsidence, or both. Consequently the pipeline industry recognizes a need for increased awareness of methods for identifying and evaluating...
Simulation of Flow Regimes to Reduce Habitat for T. tubifex
Robert T. Milhous
2008, Open-File Report 2008-1107
Whirling disease has had a significant impact on trout fisheries of the American west by reducing the numbers and quality of rainbow trout in infected streams. A critical factor in the life cycle of the whirling disease parasite is the fine sediment that provides the optimum habitat for Tubifex tubifex,...
The Distribution of Submersed Aquatic Vegetation in the Fresh and Oligohaline Tidal Potomac River, 2005
Nancy B. Rybicki, Erika M. Justiniano-Velez, Edward R. Schenk, Julie M. Baldizar, Sarah E. Hunter
2008, Open-File Report 2008-1218
Submersed aquatic vegetation (SAV) is a critical component of the Potomac River ecosystem. Though SAV provides important habitat for fauna and stabilizes bottom sediment, very dense beds may restrict recreational and commercial navigation. Exotic species of SAV are managed by the Metropolitan Washington Council of Governments Potomac Aquatic Plant Management...
A Vegetation Database for the Colorado River Ecosystem from Glen Canyon Dam to the Western Boundary of Grand Canyon National Park, Arizona
Barbara E. Ralston, Philip A. Davis, Robert M. Weber, Jill M. Rundall
2008, Open-File Report 2008-1216
A vegetation database of the riparian vegetation located within the Colorado River ecosystem (CRE), a subsection of the Colorado River between Glen Canyon Dam and the western boundary of Grand Canyon National Park, was constructed using four-band image mosaics acquired in May 2002. A digital line scanner was flown over...
Interpretation of Borehole Geophysical Logs at Area C, Former Naval Air Warfare Center, Warminster Township, Bucks County, Pennsylvania, 2007
Ronald A. Sloto
2008, Open-File Report 2008-1207
This study was done by the U.S. Geological Survey in cooperation with the U.S. Navy at Area C of the former Naval Air Warfare Center in Warminster Township, Bucks County, Pa., in support of hydrogeological investigations conducted by the Navy to address ground-water contamination in the Stockton Formation. Borehole geophysical...
Using the U.S. Geological Survey National Water Quality Laboratory LT-MDL to Evaluate and Analyze Data
Bernadine A. Bonn
2008, Open-File Report 2008-1227
A long-term method detection level (LT-MDL) and laboratory reporting level (LRL) are used by the U.S. Geological Survey?s National Water Quality Laboratory (NWQL) when reporting results from most chemical analyses of water samples. Changing to this method provided data users with additional information about their data and often resulted in...
Winds, Waves, Tides, and the Resulting Flow Patterns and Fluxes of Water, Sediment, and Coral Larvae off West Maui, Hawaii
Curt D. Storlazzi, Michael E. Field
2008, Open-File Report 2008-1215
A series of recent studies has focused on the flow patterns and particle fluxes along the coast of West Maui, Hawaii, USA, from Honolua south to Puumana. From those studies a relatively good understanding has emerged of the physical processes that influence the relative amount of suspended sediment in nearshore...
Mapping of Florida's coastal and marine resources: Setting priorities workshop
Lisa Robbins, Steven Wolfe, Ellen Raabe
2008, Open-File Report 2008-1157
The importance of mapping habitats and bioregions as a means to improve resource management has become increasingly clear. Large areas of the waters surrounding Florida are unmapped or incompletely mapped, possibly hindering proper management and good decisionmaking. Mapping of these ecosystems is among the top priorities identified by...
Derivation of ground surface and vegetation in a coastal Florida wetland with airborne laser technology
Ellen A. Raabe, Melanie S. Harris, Ramesh L. Shrestha, William E. Carter
2008, Open-File Report 2008-1125
The geomorphology and vegetation of marsh-dominated coastal lowlands were mapped from airborne laser data points collected on the Gulf Coast of Florida near Cedar Key. Surface models were developed using low- and high-point filters to separate ground-surface and vegetation-canopy intercepts. In a non-automated process, the landscape was partitioned into functional...
Annotated definitions of selected geomorphic terms and related terms of hydrology, sedimentology, soil science and ecology
W. R. Osterkamp
2008, Open-File Report 2008-1217
No astract available....
TSPP - A collection of FORTRAN programs for processing and manipulating time series
David M. Boore
2008, Open-File Report 2008-1111
This report lists a number of FORTRAN programs that I have developed over the years for processing and manipulating strong-motion accelerograms. The collection is titled TSPP, which stands for Time Series Processing Programs. I have excluded 'strong-motion accelerograms' from the title, however, as the boundary between 'strong' and 'weak' motion...
Initial sediment transport model of the mining-affected Aries River Basin, Romania
Michael J. Friedel, Joshua I. Linard
2008, Open-File Report 2008-1171
The Romanian government is interested in understanding the effects of existing and future mining activities on long-term dispersal, storage, and remobilization of sediment-associated metals. An initial Soil and Water Assessment Tool (SWAT) model was prepared using available data to evaluate hypothetical failure of the Valea Sesei tailings dam at the...
Creating a Global Building Inventory for Earthquake Loss Assessment and Risk Management
Kishor Jaiswal, David J. Wald
2008, Open-File Report 2008-1160
Earthquakes have claimed approximately 8 million lives over the last 2,000 years (Dunbar, Lockridge and others, 1992) and fatality rates are likely to continue to rise with increased population and urbanizations of global settlements especially in developing countries. More than 75% of earthquake-related human casualties are caused by the collapse...
Location of the Green Canyon (Offshore Southern Louisiana) Seismic Event of February 10, 2006
James W. Dewey, Joseph A. Dellinger
2008, Open-File Report 2008-1184
We calculated an epicenter for the Offshore Southern Louisiana seismic event of February 10, 2006 (the 'Green Canyon event') that was adopted as the preferred epicenter for the event by the USGS/NEIC. The event is held at a focal depth of 5 km; the focal depth could not be reliably...
Leachate Geochemical Results for Ash Samples from the June 2007 Angora Wildfire Near Lake Tahoe in Northern California
Philip L. Hageman, Geoffrey S. Plumlee, Deborah A. Martin, Todd M. Hoefen, Monique Adams, Paul J. Lamothe, Todor I. Todorov, Michael W. Anthony
2008, Open-File Report 2008-1170
This report releases leachate geochemical data for ash samples produced by the Angora wildfire that burned from June 24 to July 2, 2007, near Lake Tahoe in northern California. The leaching studies are part of a larger interdisciplinary study whose goal is to identify geochemical characteristics and properties of the...
