Preliminary Image Map of the 2007 Witch and Poomacha Fire Perimeters, Rodriguez Mountain Quadrangle, San Diego County, California
Perry S. Clark, Wendy S. Scratch, Gaylord W. Bias, Gregory B. Stander, Jenne L. Sexton, Bridgette J. Krawczak
2008, Open-File Report 2008-1065
In the fall of 2007, wildfires burned out of control in southern California. The extent of these fires encompassed large geographic areas that included a variety of landscapes from urban to wilderness. The U.S. Geological Survey National Geospatial Technical Operations Center (NGTOC) is currently (2008) developing a quadrangle-based 1:24,000-scale image...
Preliminary Image Map of the 2007 Magic and Buckweed Fire Perimeters, Newhall Quadrangle, Los Angeles County, California
Perry S. Clark, Wendy S. Scratch, Gaylord W. Bias, Gregory B. Stander, Jenne L. Sexton, Bridgette J. Krawczak
2008, Open-File Report 2008-1053
In the fall of 2007, wildfires burned out of control in southern California. The extent of these fires encompassed large geographic areas that included a variety of landscapes from urban to wilderness. The U.S. Geological Survey National Geospatial Technical Operations Center (NGTOC) is currently (2008) developing a quadrangle-based 1:24,000-scale image...
Preliminary Image Map of the 2007 Poomacha Fire Perimeter, Boucher Hill Quadrangle, San Diego County, California
Perry S. Clark, Wendy S. Scratch, Gaylord W. Bias, Gregory B. Stander, Jenne L. Sexton, Bridgette J. Krawczak
2008, Open-File Report 2008-1033
In the fall of 2007, wildfires burned out of control in southern California. The extent of these fires encompassed large geographic areas that included a variety of landscapes from urban to wilderness. The U.S. Geological Survey National Geospatial Technical Operations Center (NGTOC) is currently (2008) developing a quadrangle-based 1:24,000-scale image...
Science to Help Understand and Manage Important Ground-Water Resources
James Nickles
2008, Fact Sheet 2008-3039
Throughout California, as pressure on water resources continues to grow, water-supply agencies are looking to the state?s biggest ?reservoir? ? its ground-water basins ? for supply and storage. To better utilize that resource, the Sweetwater Authority and other local partners, including the city of San Diego and Otay Water Districts,...
Preliminary Image Map of the 2007 Witch Fire Perimeter, Santa Ysabel Quadrangle, San Diego County, California
Perry S. Clark, Wendy S. Scratch, Gaylord W. Bias, Gregory B. Stander, Jenne L. Sexton, Bridgette J. Krawczak
2008, Open-File Report 2008-1071
In the fall of 2007, wildfires burned out of control in southern California. The extent of these fires encompassed large geographic areas that included a variety of landscapes from urban to wilderness. The U.S. Geological Survey National Geospatial Technical Operations Center (NGTOC) is currently (2008) developing a quadrangle-based 1:24,000-scale image...
Preliminary Image Map of the 2007 Poomacha Fire Perimeter, Temecula Quadrangle, Riverside and San Diego Counties, California
Perry S. Clark, Wendy S. Scratch, Gaylord W. Bias, Gregory B. Stander, Jenne L. Sexton, Bridgette J. Krawczak
2008, Open-File Report 2008-1075
In the fall of 2007, wildfires burned out of control in southern California. The extent of these fires encompassed large geographic areas that included a variety of landscapes from urban to wilderness. The U.S. Geological Survey National Geospatial Technical Operations Center (NGTOC) is currently (2008) developing a quadrangle-based 1:24,000-scale image...
Preliminary Image Map of the 2007 Cajon Fire Perimeter, San Bernardino North Quadrangle, San Bernardino County, California
Perry S. Clark, Wendy S. Scratch, Gaylord W. Bias, Gregory B. Stander, Jenne L. Sexton, Bridgette J. Krawczak
2008, Open-File Report 2008-1066
In the fall of 2007, wildfires burned out of control in southern California. The extent of these fires encompassed large geographic areas that included a variety of landscapes from urban to wilderness. The U.S. Geological Survey National Geospatial Technical Operations Center (NGTOC) is currently (2008) developing a quadrangle-based 1:24,000-scale image...
Preliminary Image Map of the 2007 Ammo Fire Perimeter, Margarita Peak Quadrangle, San Diego County, California
Perry S. Clark, Wendy S. Scratch, Gaylord W. Bias, Gregory B. Stander, Jenne L. Sexton, Bridgette J. Krawczak
2008, Open-File Report 2008-1049
In the fall of 2007, wildfires burned out of control in southern California. The extent of these fires encompassed large geographic areas that included a variety of landscapes from urban to wilderness. The U.S. Geological Survey National Geospatial Technical Operations Center (NGTOC) is currently (2008) developing a quadrangle-based 1:24,000-scale image...
Living in Yellowstone's Caldera: A geochemical trophic cascade in elk
Robert A. Garrott, P.J. White, James K. Otton, Maurice A. Chaffee
2008, Book, Terrestrial Ecology
Though the geology of earth's rare geothermal environments and their associated microbial communities are intensely studied, less scientific attention has focused on their potential effects through the plant-herbivore-carnivore trophic chain. The west-central portion of Yellowstone National Park contains a 2000-km2 volcanic <a...
Effects of supershear rupture speed on the high-frequency content of S waves investigated using spontaneous dynamic rupture models and isochrone theory
A. Bizzarri, Paul A. Spudich
2008, Journal of Geophysical Research Solid Earth (113)
In this paper we achieve three goals: (1) We demonstrate that crack tips governed by friction laws, including slip weakening, rate- and state-dependent laws, and thermal pressurization of pore fluids, propagating at supershear speed have slip velocity functions with reduced high-frequency content compared to crack tips traveling at subshear...
Substrate Geochemistry and Soil Development in Boreal Forest and Tundra Ecosystems in the Yukon-Tanana Upland and Seward Peninsula, Alaska
L. P. Gough, J.G. Crock, B. Wang, W. C. Day, D. D. Eberl, R. F. Sanzolone, P. J. Lamothe
2008, Scientific Investigations Report 2008-5010
We report on soil development as a function of bedrock type and the presence of loess in two high latitude ecosystems (boreal forest and tundra) and from two regions in Alaska?the Yukon-Tanana Upland (YTU, east-central Alaska) and the Seward Peninsula (SP, far-west coastal Alaska). This approach to the study of...
Distribution of Igneous Rocks in Medina and Uvalde Counties, Texas, as Inferred from Aeromagnetic Data
David V. Smith, Robert R. McDougal, Bruce D. Smith, Charles D. Blome
2008, Scientific Investigations Report 2007-5191
A high-resolution aeromagnetic survey was flown in 2001 over Medina and Uvalde Counties, Texas, as part of a multi-disciplinary investigation of the geohydrologic framework of the Edwards aquifer in south-central Texas. The objective of the survey was to assist in mapping structural features that influence aquifer recharge and ground-water flow....
WaterWatch — Maps, graphs, and tables of current, recent, and past streamflow conditions
Xiaodong Jian, David Wolock, Harry F. Lins
2008, Fact Sheet 2008-3031
WaterWatch (http://water.usgs.gov/waterwatch/) is a U.S. Geological Survey (USGS) World Wide Web site that displays maps, graphs, and tables describing real-time, recent, and past streamflow conditions for the United States. The real-time information generally is updated on an hourly basis. WaterWatch provides streamgage-based maps that show the location of more than...
Thermal Profiles for Selected River Reaches in the Yakima River Basin, Washington
J. J. Vaccaro, M. E. Keys, R. J. Julich, W.B. Welch
2008, Data Series 342
Thermal profiles (data sets of longitudinal near-streambed temperature) that provide information on areas of potential ground-water discharge and salmonid habitat for 11 river reaches in the Yakima River basin, Washington, are available as Microsoft Excel? files that can be downloaded from the Internet. Two reaches were profiled twice resulting in...
Hydrographs showing ground-water level trends for selected wells in the Yakima River basin aquifer system, Washington
M. E. Keys, J. J. Vaccaro, M. A. Jones, R. J. Julich
2008, Data Series 343
Selected ground-water level hydrographs for the Yakima River basin aquifer system, Washington, are presented in an interactive web-based map to illustrate the existence or lack of trends in ground-water levels and, thus, potential variations in ground-water availability in the area. Hydrographs are linked to points corresponding to the well location...
Hydraulic Analyses of Sni-A-Bar Creek and Selected Tributaries at Grain Valley, Jackson County, Missouri
Paul H. Rydlund Jr., William Otero-Benitez, David C. Heimann
2008, Scientific Investigations Report 2008-5051
A study was done by the U.S. Geological Survey, in cooperation with the city of Grain Valley, Jackson County, Missouri, to simulate the hydraulic characteristics of Sni-A-Bar Creek and selected tributaries within the corporate limits. The 10-, 50-, 100-, and 500-year recurrence interval streamflows were simulated to determine potential backwater...
Simulations of Ground-Water Flow, Transport, Age, and Particle Tracking near York, Nebraska, for a Study of Transport of Anthropogenic and Natural Contaminants (TANC) to Public-Supply Wells
Brian R. Clark, Matthew K. Landon, Leon J. Kauffman, George Z. Hornberger
2008, Scientific Investigations Report 2007-5068
Contamination of public-supply wells has resulted in public-health threats and negative economic effects for communities that must treat contaminated water or find alternative water supplies. To investigate factors controlling vulnerability of public-supply wells to anthropogenic and natural contaminants using consistent and systematic data collected in a variety of principal aquifer...
Introduction to Field Water-Quality Methods for the Collection of Metals - 2007 Project Summary
Monica L. Allen
2008, Fact Sheet 2008-3012
The U.S. Geological Survey (USGS), Region VI of the U.S. Environmental Protection Agency (USEPA), and the Osage Nation presented three 3-day workshops, in June-August 2007, entitled ?Introduction to Field Water-Quality Methods for the Collection of Metals.? The purpose of the workshops was to provide instruction to tribes within USEPA Region...
Estimated use of water in the Upper Duck River watershed, central Tennessee, and water-demand projections through 2030
Susan S. Hutson
2008, Scientific Investigations Report 2008-5058
Future municipal water demand was estimated for the Bedford, Coffee, Marshall, and Maury-southern Williamson water-service areas in the upper Duck River watershed in central Tennessee through 2030. The Duck River, a primary source of municipal water, provided a total of 24.3 million gallons per day (Mgal/d) or 92 percent of...
USGS Alaska State Mosaic
Water Resources Division, U.S. Geological Survey
2008, Fact Sheet 2008-3023
The Alaska State Mosaic consists of portions of scenes from the Multi-Resolution Land Characteristics 2001 (MRLC 2001) collection. The 172 selected scenes have been geometrically and radiometrically aligned to produce a seamless, relatively cloud-free image of the State. The scenes were acquired between July 1999 and September 2002, resampled to...
Calculation of the rate of M≥6.5 earthquakes for California and adjacent portions of Nevada and Mexico
Arthur Frankel, Charles Mueller
2008, Open-File Report 2008-1112
One of the key issues in the development of an earthquake recurrence model for California and adjacent portions of Nevada and Mexico is the comparison of the predicted rates of earthquakes with the observed rates. Therefore, it is important to make an accurate determination of the observed rate of M>6.5...
Geospatial Information is the Cornerstone of Effective Hazards Response
Mark Newell
2008, Fact Sheet 2008-3026
Every day there are hundreds of natural disasters world-wide. Some are dramatic, whereas others are barely noticeable. A natural disaster is commonly defined as a natural event with catastrophic consequences for living things in the vicinity. Those events include earthquakes, floods, hurricanes, landslides, tsunami, volcanoes, and wildfires. Man-made disasters are...
Occurrence of chlorothalonil, its transformation products, and selected other pesticides in Texas and Oklahoma streams, 2003-2004
William A. Battaglin, Kathryn Kuivila, Kim Winton, Michael Meyer
2008, Scientific Investigations Report 2008-5016
The primary purpose of the study described in this report was to determine if the fungicide chlorothalonil (2,4,5,6-tetrachloroisophthalonitrile), three of its transformation products, or selected other pesticides are transported to surface water after use on peanuts or other crops in Texas and Oklahoma. The results summarized here are part of...
Areas of historical oil and gas exploration and production in the United States
Laura Biewick
2008, Data Series 69-Q
This report contains maps and associated spatial data showing historical oil and gas exploration and production in the United States. Because of the proprietary nature of many oil and gas well databases, the United States was divided into cells one-quarter square mile and the production status of all wells in...
Methods for Processing and Summarizing Time-Series Temperature Data Collected as Part of the National Water-Quality Assessment Program Studies on the Effects of Urbanization on Stream Ecosystems
Thomas F. Cuffney, Robin A. Brightbill
2008, Data Series 330
Temperature data and summary statistics are presented for 256 sites in 9 metropolitan areas as part of the U.S. Geological Survey National Water-Quality Assessment Program studies of the effects of urbanization on stream ecosystems. The computer program (GRAN) that was developed to derive uniform data granularity and calculate temperature statistics...
