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Page 160, results 3976 - 4000

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Rocky Mountain Snowpack Chemistry at Selected Sites, 2004
George P. Ingersoll, M. Alisa Mast, Leora Nanus, Heather H. Handran, David J. Manthorne, Douglas M. Hultstrand
2007, Open-File Report 2007-1045
During spring 2004, the U.S. Geological Survey in cooperation with the National Park Service and the U.S. Department of Agriculture, Forest Service collected and analyzed snowpack samples for 65 sites in the Rocky Mountain region from New Mexico to Montana. Snowpacks were sampled from late February through early April and...
Side-scan sonar imaging of the Colorado River, Grand Canyon
Roberto Anima, Florence L. Wong, David Hogg, Peter Galanis
2007, Open-File Report 2007-1216
This paper presents data collection methods and side-scan sonar data collected along the Colorado River in Grand Canyon in August and September of 2000. The purpose of the data collection effort was to image the distribution of sand between Glen Canyon Dam and river mile 87.4 before and after the...
Temperature anomalies in the Lower Suwannee River and tidal creeks, Florida, 2005
Ellen A. Raabe, Elzbieta Bialkowska-Jelinska
2007, Open-File Report 2007-1311
Temperature anomalies in coastal waters were detected with Thermal Infrared imagery of the Lower Suwannee River (LSR) and nearshore tidal marshes on Florida’s Gulf Coast. Imagery included 1.5-m-resolution day and night Thermal Infrared (TIR) and 0.75-m-resolution Color Infrared (CIR) imagery acquired on 2-3 March 2005. Coincident temperature readings were collected...
Measurements of slope current and environmental geochemistry near the western boundary of the Gulf of the Farallones National Marine Sanctuary
Marlene A. Noble, Jingping Xu, Jon Kolak, Anne L. Gartner, Kurt J. Rosenberger
2007, Open-File Report 2006-1288
For nearly a decade, dredged material from San Francisco Bay has been deposited at the U.S. Environmental Protection Agency (EPA) Region IX designated disposal site on the continental slope west of the Farallon Islands. Over the past several years, annual disposal volumes have ranged from 136,170 m3 (61 barge loads)...
Preliminary Gravity and Magnetic Data of the Lake Pillsbury Region, Northern Coast Ranges, California
Victoria E. Langenheim, Robert C. Jachens, Robert L. Morin, Craig A. McCabe
2007, Open-File Report 2007-1368
The Lake Pillsbury region is transected by the Bartlett Springs Fault zone, one of the main strike-slip faults of the San Andreas system north of San Francisco Bay, California. Gravity and magnetic data were collected to help characterize the geometry and offset of the fault zone as well as determine...
Potential for shoreline changes due to sea-level rise along the U.S. mid-Atlantic region
Benjamin T. Gutierrez, S. Jeffress Williams, E. Robert Thieler
2007, Open-File Report 2007-1278
Sea-level rise over the next century is expected to contribute significantly to physical changes along open-ocean shorelines. Predicting the form and magnitude of coastal changes is important for understanding the impacts to humans and the environment. Presently, the ability to predict coastal changes is limited by the scientific understanding of...
Effect of on-site wastewater disposal on quality of ground water and base flow: A pilot study in Chester County, southeastern Pennsylvania, 2005
Lisa A. Senior, Peter J. Cinotto
2007, Open-File Report 2007-1253
On-site wastewater disposal has the potential to introduce contaminants into ground water and subsequently, by ground-water discharge, to streams. A pilot study was conducted during 2005 by the U.S. Geological Survey in cooperation with the Chester County Health Department and the Chester County Water Resources Authority to determine if wastewater...
Selected Natural Attenuation Monitoring Data, Operable Unit 1, Naval Undersea Warfare Center, Division Keyport, Washington, June 2006
R.S. Dinicola, R.L. Huffman
2007, Open-File Report 2007-1430
Previous investigations have shown that natural attenuation and biodegradation of chlorinated volatile organic compounds (VOCs) are substantial in shallow ground water beneath the 9-acre former landfill at Operable Unit 1 (OU 1), Naval Undersea Warfare Center, Division Keyport, Washington. The U.S. Geological Survey (USGS) has continued to monitor ground-water geochemistry...
Phosphorus Concentrations in Stream-Water and Reference Samples - An Assessment of Laboratory Comparability
Michael R. McHale, Dennis McChesney
2007, Open-File Report 2007-1267
In 2003, a study was conducted to evaluate the accuracy and precision of 10 laboratories that analyze water-quality samples for phosphorus concentrations in the Catskill Mountain region of New York State. Many environmental studies in this region rely on data from these different laboratories for water-quality analyses, and the data...
Water Quality in the Tanana River Basin, Alaska, Water Years 2004-06
Edward H. Moran
2007, Open-File Report 2007-1390
OVERVIEW This report contains water-quality data collected from 84 sites in Tanana River basin during water years 2004 through 2006 (October 2003 through September 2006) as part of a cooperative study between the U.S. Geological Survey (USGS) and Alaska Department of Environmental Conservation (ADEC) Alaska Monitoring and Assessment Program (AKMAP), supported...
Borehole Characterization of a Methane-Yielding Bedrock Well, Tyngsborough, Massachusetts
Herbert A. Pierce, Gregory J. Walsh, Robert A. Burruss, James R. Degnan
2007, Open-File Report 2007-1399
In August 2004, a domestic water well was drilled into granitoid metamorphic rocks 5.38 kilometers southwest of Tyngsborough, Massachusetts, on Scribner Hill. According to well driller Roger Skillings of Skillings and Sons, Inc. (oral commun., 2005), no water was encountered during drilling and when the borehole reached a depth of...
An Online Interactive Map Service for Displaying Ground-Water Conditions in Arizona
Fred D. Tillman, Stanley A. Leake, Marilyn E. Flynn, Jeffrey T. Cordova, Kurt T. Schonauer
2007, Open-File Report 2007-1436
Monitoring the availability of the nation's ground-water supplies is of critical importance to planners and water managers. The general public also has an interest in understanding the status of ground-water conditions, especially in the semi-arid Southwestern United States where much of the water used by municipalities and agriculture comes from...
Map and data for Quaternary faults and fault systems on the Island of Hawai'i
Eric C. Cannon, Roland Burgmann, Anthony J. Crone, Michael N. Machette, Richard L. Dart
2007, Open-File Report 2007-1284
Introduction This report and digitally prepared, GIS-based map is one of a series of similar products covering individual states or regions of United States that show the locations, ages, and activity rates of major earthquake-related features such as faults and fault-related folds. It is part of a continuing the effort to...
A Hammer-Impact, Aluminum, Shear-Wave Seismic Source
Seth S. Haines
2007, Open-File Report 2007-1406
Near-surface seismic surveys often employ hammer impacts to create seismic energy. Shear-wave surveys using horizontally polarized waves require horizontal hammer impacts against a rigid object (the source) that is coupled to the ground surface. I have designed, built, and tested a source made out of aluminum and equipped with spikes...
Southwestern Willow Flycatcher Breeding Site and Territory Summary - 2006
Scott L. Durst, Mark K. Sogge, Shay D. Stump, Sartor O. Williams, Barbara E. Kus, Susan J. Sferra
2007, Open-File Report 2007-1391
Introduction The Southwestern Willow Flycatcher (Empidonax traillii extimus) is an endangered bird that breeds only in dense riparian habitats in six southwestern states (southern California, extreme southern Nevada, southern Utah, southwestern Colorado, Arizona, and New Mexico). Since 1993, hundreds of Southwestern Willow Flycatcher surveys have been conducted each year, and many...
Total selenium and selenium species in irrigation drain inflows to the Salton Sea, California, April and July 2007
Thomas W. May, Michael J. Walther, Michael K. Saiki, William G. Brumbaugh
2007, Open-File Report 2007-1347
This report presents the results for two sampling periods during a 4-year monitoring survey to provide a characterization of selenium concentrations in selected irrigation drains flowing into the Salton Sea, California. Total selenium, selenium species, and total suspended solids were determined in water samples, and total selenium was determined in...
Water-quality, bed-sediment, and biological data (October 2005 through September 2006) and statistical summaries of long-term data for streams in the Clark Fork Basin, Montana
Kent A. Dodge, Michelle I. Hornberger, Jessica Dyke
2007, Open-File Report 2007-1301
Water, bed sediment, and biota were sampled in streams from Butte to below Milltown Reservoir as part of a long-term monitoring program in the upper Clark Fork basin; additional water-quality samples were collected in the Clark Fork basin from sites near Milltown Reservoir downstream to near the confluence of the...
Emergency Assessment of Debris-Flow Hazards from Basins Burned by the 2007 Witch Fire, San Diego County, Southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael, Mark A. Bauer, Susan C. Stitt, Donna L. Knifong, Bernard J. McNamara, Yvonne M. Roque
2007, Open-File Report 2007-1420
INTRODUCTION The objective of this report is to present a preliminary emergency assessment of the potential for debris-flow generation from basins burned by the Witch Fire in San Diego County, southern California in 2007. Debris flows are among the most hazardous geologic phenomena; debris flows that followed wildfires in southern California...
Emergency Assessment of Debris-Flow Hazards from Basins Burned by the 2007 Ammo Fire, San Diego County, Southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael, Mark A. Bauer, Susan C. Stitt, Donna L. Knifong, Bernard J. McNamara, Yvonne M. Roque
2007, Open-File Report 2007-1413
INTRODUCTION The objective of this report is to present a preliminary emergency assessment of the potential for debris-flow generation from basins burned by the Ammo Fire in San Diego County, southern California in 2007. Debris flows are among the most hazardous geologic phenomena; debris flows that followed wildfires in southern California...
Emergency Assessment of Debris-Flow Hazards from Basins Burned by the 2007 Buckweed Fire, Los Angeles County, Southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael, Mark A. Bauer, Susan C. Stitt, Donna L. Knifong, Bernard J. McNamara, Yvonne M. Roque
2007, Open-File Report 2007-1414
INTRODUCTION The objective of this report is to present a preliminary emergency assessment of the potential for debris-flow generation from basins burned by the Buckweed Fire in Los Angeles County, southern California in 2007. Debris flows are among the most hazardous geologic phenomena; debris flows that followed wildfires in southern California...
Major- and Trace-Element Concentrations in Rock Samples Collected in 2006 from the Taylor Mountains 1:250,000-scale Quadrangle, Alaska
Edward P. Klimasauskas, Marti L. Miller, Dwight Bradley
2007, Open-File Report 2007-1386
Introduction The Kuskokwim mineral belt of Bundtzen and Miller (1997) forms an important metallogenic region in southwestern Alaska that has yielded more than 3.22 million ounces of gold and 400,000 ounces of silver. Precious-metal and related deposits in this region associated with Late Cretaceous to early Tertiary igneous complexes extend into...
Emergency Assessment of Debris-Flow Hazards from Basins Burned by the 2007 Ranch Fire, Ventura and Los Angeles Counties, Southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael, Mark A. Bauer, Susan C. Stitt, Donna L. Knifong, Bernard J. McNamara, Yvonne M. Roque
2007, Open-File Report 2007-1418
INTRODUCTION The objective of this report is to present a preliminary emergency assessment of the potential for debris-flow generation from basins burned by the Ranch Fire in Ventura and Los Angeles Counties, southern California in 2007. Debris flows are among the most hazardous geologic phenomena; debris flows that followed wildfires in...
Emergency Assessment of Debris-Flow Hazards from Basins Burned by the 2007 Canyon Fire, Los Angeles County, Southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael, Mark A. Bauer, Susan C. Stitt, Donna L. Knifong, Bernard J. McNamara, Yvonne M. Roque
2007, Open-File Report 2007-1415
INTRODUCTION The objective of this report is to present a preliminary emergency assessment of the potential for debris-flow generation from basins burned by the Canyon Fire in Los Angeles County, southern California in 2007. Debris flows are among the most hazardous geologic phenomena; debris flows that followed wildfires in southern California...
Emergency Assessment of Debris-Flow Hazards from Basins Burned by the 2007 Santiago Fire, Orange County, Southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael, Mark A. Bauer, Susan C. Stitt, Donna L. Knifong, Bernard J. McNamara, Yvonne M. Roque
2007, Open-File Report 2007-1419
INTRODUCTION The objective of this report is to present a preliminary emergency assessment of the potential for debris-flow generation from basins burned by the Santiago Fire in Orange County, southern California in 2007. Debris flows are among the most hazardous geologic phenomena; debris flows that followed wildfires in southern California in...
Emergency assessment of debris-flow hazards from basins burned by the 2007 Harris Fire, San Diego County, southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael, Mark A. Bauer, Susan C. Stitt, Donna L. Knifong, Bernard J. McNamara, Yvonne M. Roque
2007, Open-File Report 2007-1421
IntroductionThe objective of this report is to present a preliminary emergency assessment of the potential for debris-flow generation from basins burned by the Harris Fire in San Diego County, southern California in 2007. Debris flows are among the most hazardous geologic phenomena; debris flows that followed wildfires in southern California...