GPS: Applications for measuring tectonic and fault-related deformation
Jessica R. Murray
Robert A. Meyers, editor(s)
2009, Book chapter, Encyclopedia of complexity and systems science
The Global Positioning System (GPS) is a space-based Global NavigationSatellite System (GNSS). Using signals transmitted by GPS satellites, the positions of ground‐based receivers can be calculated to high precision,making it possible to track the movement of points on the Earth's surface over time. Unlike older geodetic surveying methods which involved periodicallymeasuring...
The Water Cycle in Volusia County
Edward R. German
2009, Fact Sheet 2009-3004
Earth's water is always in motion. The water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above, and below the Earth's surface. This fact sheet provides information about how much water moves into and out of Volusia County, and where it is stored. It...
The geochemistry of environmentally important trace elements in UK coals, with special reference to the Parkgate coal in the Yorkshire–Nottinghamshire Coalfield, UK
D.A. Spears, S.J. Tewalt
2009, International Journal of Coal Geology (80) 157-166
The Parkgate coal of Langsettian age in the Yorkshire–Nottinghamshire coalfield is typical of many coals in the UK in that it has a high sulphur (S) content. Detailed information on the distribution of the forms of S, both laterally and vertically through the seam, was known from previous investigations. In...
Assessment of Local Recharge Area Characteristics of Four Caves in Northern Arkansas and Northeastern Oklahoma, 2004-07
Jonathan A. Gillip, Joel M. Galloway, Rheannon M. Hart
2009, Scientific Investigations Report 2009-5118
A study was conducted from 2004 to 2007 by the U.S. Geological Survey in cooperation with the U.S. Fish and Wildlife Service to assess the characteristics of the local recharge areas of four caves in northern Arkansas and northeastern Oklahoma that provide habitat for a number of unique organisms. Characterization...
Sediment Characteristics and Transport in the Kootenai River White Sturgeon Critical Habitat near Bonners Ferry, Idaho
Ryan L. Fosness, Marshall L. Williams
2009, Scientific Investigations Report 2009-5228
Recovery efforts for the endangered Kootenai River population of white sturgeon require an understanding of the characteristics and transport of suspended and bedload sediment in the critical habitat reach of the river. In 2007 and 2008, the U.S. Geological Survey in cooperation with the Kootenai Tribe of Idaho, conducted suspended-...
Algal and Water-Quality Data for the Yellowstone River and Tributaries, Montana and Wyoming, 1999-2000
David A. Peterson
2009, Data Series 484
Streams of the Yellowstone River Basin in Montana and Wyoming were sampled as part of the U.S. Geological Survey's National Water-Quality Assessment Program. Algal communities were sampled in 1999 in conjunction with other ecological sampling and in 2000 during synoptic sampling. Water-quality measurements related to the algal sampling included light...
Effects of roads, topography, and land use on forest cover dynamics in the Brazilian Atlantic Forest
Simone R. Freitas, Todd Hawbaker, Jean Paul Metzger
2009, Forest Ecology and Management (259) 410-417
Roads and topography can determine patterns of land use and distribution of forest cover, particularly in tropical regions. We evaluated how road density, land use, and topography affected forest fragmentation, deforestation and forest regrowth in a Brazilian Atlantic Forest region near the city...
Simulations of Groundwater Flow and Particle Tracking Analysis in the Area Contributing Recharge to a Public-Supply Well near Tampa, Florida, 2002-05
Christy A. Crandall, Leon J. Kauffman, Brian G. Katz, Patricia A. Metz, W. Scott McBride, Marian P. Berndt
2009, Scientific Investigations Report 2008-5231
Shallow ground water in the north-central Tampa Bay region, Florida, is affected by elevated nitrate concentrations, the presence of volatile organic compounds, and pesticides as a result of groundwater development and intensive urban land use. The region relies primarily on groundwater for drinking-water supplies. Sustainability of groundwater quality for public...
DayCent-Chem simulations of ecological and biogeochemical processes of eight mountain ecosystems in the United States
Melannie D. Hartman, Jill S. Baron, David W. Clow, Irena F. Creed, Charles T. Driscoll, Holly A. Ewing, Bruce D. Haines, Jennifer Knoepp, Kate Lajtha, Dennis S. Ojima, William J. Parton, Jim Renfro, R. Bruce Robinson, Helga Van Miegroet, Kathleen C. Weathers, Mark W. Williams
2009, Scientific Investigations Report 2009-5150
Atmospheric deposition of nitrogen (N) and sulfur (S) cause complex responses in ecosystems, from fertilization to forest ecosystem decline, freshwater eutrophication to acidification, loss of soil base cations, and alterations of disturbance regimes. DayCent-Chem, an ecosystem simulation model that combines ecosystem nutrient cycling and plant dynamics with aqueous geochemical equilibrium...
Potentiometric Surface of the Upper Floridan Aquifer, West-Central Florida, September 2008
Anita G. Ortiz
2009, Scientific Investigations Map 3071
The Floridan aquifer system consists of the Upper and Lower Floridan aquifers separated by the middle confining unit. The middle confining unit and the Lower Floridan aquifer in west-central Florida generally contain highly mineralized water. The water-bearing units containing fresh water are herein referred to as the Upper Floridan aquifer....
Use of StreamStats in the Upper French Broad River Basin, North Carolina: A Pilot Water-Resources Web Application
Chad R. Wagner, Kirsten C. Tighe, Silvia Terziotti
2009, Fact Sheet 2009-3088
StreamStats is a Web-based Geographic Information System (GIS) application that was developed by the U.S. Geological Survey (USGS) in cooperation with Environmental Systems Research Institute, Inc. (ESRI) to provide access to an assortment of analytical tools that are useful for water-resources planning and management. StreamStats allows users to easily obtain...
Application of the Hydroecological Integrity Assessment Process for Missouri Streams
Jonathan G. Kennen, James A. Henriksen, John Heasley, Brian S. Cade, James W. Terrell
2009, Open-File Report 2009-1138
Natural flow regime concepts and theories have established the justification for maintaining or restoring the range of natural hydrologic variability so that physiochemical processes, native biodiversity, and the evolutionary potential of aquatic and riparian assemblages can be sustained. A synthesis of recent research advances in hydroecology, coupled with stream classification...
History of the topographic branch (division)
Richard T. Evans, Helen M. Frye
2009, Circular 1341
From a very early period of the world's existence, man has endeavored to represent the earth's surface in a graphic form for the information of his fellow men, realizing that no oral or written description is capable of setting forth topographic facts so vividly and so clearly as a map. Mapping...
Groundwater-quality data in the Madera-Chowchilla study unit, 2008: Results from the California GAMA Program
Jennifer L. Shelton, Miranda S. Fram, Kenneth Belitz
2009, Data Series 455
Groundwater quality in the approximately 860-square-mile Madera–Chowchilla study unit (MADCHOW) was investigated in April and May 2008 as part of the Priority Basin Project of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The GAMA Priority Basin Project was developed in response to the Groundwater Quality Monitoring Act of 2001...
Assessment of contaminant exposure and effects on ospreys nesting along the Lower Duwamish River, Washington, 2006-07
Branden L. Johnson, Charles J. Henny, James L. Kaiser, Jay W. Davis, Edmund P. Schulz
2009, Open-File Report 2009-1255
We evaluated the effects of contaminants on osprey (Pandion haliaetus) nesting along the lower Duwamish River (LDR), Washington, and used the upper reach of the Willamette River (WR), Oregon, as a reference site. Osprey eggs and nestling blood (plasma) were collected at nests along the LDR (11 eggs, 7 plasmas)...
Groundwater Conditions and Studies in the Albany Area of Dougherty County, Georgia, 2008
Debbie W. Gordon
2009, Open-File Report 2009-1244
The U.S. Geological Survey has been working cooperatively with the Albany Water, Gas, and Light Commission to monitor groundwater quality and availability since 1977. This report presents an overview of groundwater conditions and studies in the Albany area of Dougherty County, Georgia, during 2008. Historical data also are presented for...
Long-Term Stage, Stage-Residual, and Width Data for Streams in the Piedmont Physiographic Region, Georgia
Jeffrey W. Riley, Robert B. Jacobson
2009, Open-File Report 2009-1205
This report presents the data used to assess geomorphic adjustment of streams over time and to changing land-use conditions. Thirty-seven U.S. Geological Survey streamgages were selected within the Piedmont physiographic region of Georgia. Width, depth, stage, and discharge data from these streams were analyzed to assess channel stability and determine...
Water-Level Data for the Albuquerque Basin and Adjacent Areas, Central New Mexico, Period of Record Through September 30, 2008
Joseph E. Beman
2009, Open-File Report 2009-1125
The Albuquerque Basin, located in central New Mexico, is about 100 miles long and 25 to 40 miles wide. The basin is defined as the extent of consolidated and unconsolidated deposits of Tertiary and Quaternary age that encompass the structural Rio Grande Rift within the basin. Drinking-water supplies throughout the...
A Comparison of Turbidity-Based and Streamflow-Based Estimates of Suspended-Sediment Concentrations in Three Chesapeake Bay Tributaries
John D. Jastram, Douglas Moyer, Kenneth Hyer
2009, Scientific Investigations Report 2009-5165
Fluvial transport of sediment into the Chesapeake Bay estuary is a persistent water-quality issue with major implications for the overall health of the bay ecosystem. Accurately and precisely estimating the suspended-sediment concentrations (SSC) and loads that are delivered to the bay, however, remains challenging. Although manual sampling of SSC produces...
Deep Resistivity Structure of Mid Valley, Nevada Test Site, Nevada
Erin L. Wallin, Brian D. Rodriguez, Jackie M. Williams
2009, Open-File Report 2008-1118
The U.S. Department of Energy (DOE) and the National Nuclear Security Administration (NNSA) at their Nevada Site Office (NSO) are addressing ground-water contamination resulting from historical underground nuclear testing through the Environmental Management (EM) program and, in particular, the Underground Test Area (UGTA) project. From 1951 to 1992, 828 underground nuclear...
Estimation of Leakage Potential of Selected Sites in Interstate and Tri-State Canals Using Geostatistical Analysis of Selected Capacitively Coupled Resistivity Profiles, Western Nebraska, 2004
Joseph Vrabel, Andrew Teeple, Wade H. Kress
2009, Scientific Investigations Report 2009-5223
With increasing demands for reliable water supplies and availability estimates, groundwater flow models often are developed to enhance understanding of surface-water and groundwater systems. Specific hydraulic variables must be known or calibrated for the groundwater-flow model to accurately simulate current or future conditions. Surface geophysical surveys, along with selected test-hole...
Groundwater quality data for the Tahoe-Martis study unit, 2007: Results from the California GAMA Program
Miranda S. Fram, Cathy Munday, Kenneth Belitz
2009, Data Series 432
Groundwater quality in the approximately 460-square-mile Tahoe–Martis study unit was investigated in June through September 2007 as part of the Priority Basin Project of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The GAMA Priority Basin Project was developed in response to the Groundwater Quality Monitoring Act of 2001 and...
Mapping and Visualization of Storm-Surge Dynamics for Hurricane Katrina and Hurricane Rita
Dean B. Gesch
2009, Scientific Investigations Report 2009-5230
The damages caused by the storm surges from Hurricane Katrina and Hurricane Rita were significant and occurred over broad areas. Storm-surge maps are among the most useful geospatial datasets for hurricane recovery, impact assessments, and mitigation planning for future storms. Surveyed high-water marks were used to generate a maximum storm-surge...
Soil CO2 Flux in the Amargosa Desert, Nevada, during El Nino 1998 and La Nina 1999
Alan C. Riggs, David I. Stannard, Florentino B. Maestas, Michael R. Karlinger, Robert G. Striegl
2009, Scientific Investigations Report 2009-5061
Mean annual soil CO2 fluxes from normally bare mineral soil in the Amargosa Desert in southern Nevada, United States, measured with clear and opaque soil CO2-flux chambers (autochambers) were small - <5 millimoles per square meter per day - during both El Nino 1998 and La Nina 1999. The 1998...
Multilevel Methodology for Simulation of Spatio-Temporal Systems with Heterogeneous Activity; Application to Spread of Valley Fever Fungus
Rajanikanth Jammalamadaka
2009, Open-File Report 2009-1241
This report consists of a dissertation submitted to the faculty of the Department of Electrical and Computer Engineering, in partial fulfillment of the requirements for the degree of Doctor of Philosophy, Graduate College, The University of Arizona, 2008. Spatio-temporal systems with heterogeneity in their structure and behavior have two major...
