Potentiometric Surface of the Patuxent Aquifer in Southern Maryland, September 2007
Stephen E. Curtin, David C. Andreasen, Andrew W. Staley
2009, Open-File Report 2009-1088
This report presents a map showing the potentiometric surface of the Patuxent aquifer in the Patuxent Formation of Early Cretaceous age in Southern Maryland during September 2007. The map is based on water-level measurements in 41 wells. The highest measured water level was 165 feet above sea level near the...
Sustainability of Water Resources in the Fractured-Rock Area of Maryland
David W. Bolton, James M. Gerhart, Saeid Kasraei
2009, Fact Sheet 2009-3009
The fractured-rock area of Maryland encompasses the region of the State west of the Fall Line, which is approximated by the Interstate 95 corridor. It includes the Piedmont, Blue Ridge, Ridge and Valley, and Appalachian Plateau Physiographic Provinces (fig. 1). Surface water and ground water are important and interconnected water...
Potentiometric Surface of the Lower Patapsco Aquifer in Southern Maryland, September 2007
Stephen E. Curtin, David C. Andreasen, Andrew W. Staley
2009, Open-File Report 2009-1086
This report presents a map showing the potentiometric surface of the lower Patapsco aquifer in the Patapsco Formation of Early Cretaceous age in Southern Maryland during September 2007. The map is based on water-level measurements in 65 wells. The highest measured water level was 111 feet above sea level near...
Potentiometric Surface of the Aquia Aquifer in Southern Maryland, September 2007
Stephen E. Curtin, David C. Andreasen, Andrew W. Staley
2009, Open-File Report 2009-1080
This report presents a map showing the potentiometric surface of the Aquia aquifer in the Aquia Formation of Paleocene age in Southern Maryland during September 2007. The map is based on water-level measurements in 85 wells. The highest measured water level was 50 feet above sea level near the northern...
The Difference Between the Potentiometric Surfaces of the Magothy Aquifer in Southern Maryland, September 1975 and September 2007
Stephen E. Curtin, David C. Andreasen, Andrew W. Staley
2009, Open-File Report 2009-1083
This report presents a map showing the change in the potentiometric surface of the Magothy aquifer in the Magothy Formation of Late Cretaceous age in Southern Maryland for September 1975 and September 2007. The map, based on water-level measurements in 51 wells, shows that during the 32-year period, the potentiometric...
Potentiometric Surface of the Upper Patapsco Aquifer in Southern Maryland, September 2007
Stephen E. Curtin, David C. Andreasen, Andrew W. Staley
2009, Open-File Report 2009-1084
This report presents a map showing the potentiometric surface of the upper Patapsco aquifer in the Patapsco Formation of Early Cretaceous age in Southern Maryland during September 2007. The map is based on water-level measurements in 50 wells. The highest measured water level was 120 feet above sea level near...
The Difference Between the Potentiometric Surfaces of the Upper Patapsco Aquifer in Southern Maryland, September 1990 and September 2007
Stephen E. Curtin, David C. Andreasen, Andrew W. Staley
2009, Open-File Report 2009-1085
This report presents a map showing the change in the potentiometric surface of the upper Patapsco aquifer in the Patapsco Formation of Early Cretaceous age in Southern Maryland for September 1990 and September 2007. The map, based on water-level measurements in 33 wells, shows that during the 17-year period, the...
Comment: Radiocarbon deglaciation chronology of the Thunder Bay, Ontario area and implications for ice sheet retreat patterns
Anders E. Carlson, Peter U. Clark, Steven W. Hostetler
2009, Quaternary Science Reviews (28) 2546-2547
No abstract available....
Recharge rates and chemistry beneath playas of the High Plains aquifer: A literature review and synthesis
Jason J. Gurdak, Cassia D. Roe
2009, Circular 1333
Playas are ephemeral, closed-basin wetlands that are important zones of recharge to the High Plains (or Ogallala) aquifer and critical habitat for birds and other wildlife in the otherwise semiarid, shortgrass prairie and agricultural landscape. The ephemeral nature of playas, low regional recharge rates, and a strong reliance on ground...
Maps Showing Seismic Landslide Hazards in Anchorage, Alaska
Randall W. Jibson, John A. Michael
2009, Scientific Investigations Map 3077
The devastating landslides that accompanied the great 1964 Alaska earthquake showed that seismically triggered landslides are one of the greatest geologic hazards in Anchorage. Maps quantifying seismic landslide hazards are therefore important for planning, zoning, and emergency-response preparation. The accompanying maps portray seismic landslide hazards for the following conditions: (1)...
Geochemical data for Upper Mineral Creek, Colorado, under existing ambient conditions and during an experimental pH modification, August 2005
Robert L. Runkel, Briant A. Kimball, Judy I. Steiger, Katherine Walton-Day
2009, Data Series 442
Mineral Creek, an acid mine drainage stream in south-western Colorado, was the subject of a water-quality study that employed a paired synoptic approach. Under the paired synoptic approach, two synoptic sampling campaigns were conducted on the same study reach. The initial synoptic campaign, conducted August 22, 2005, documented stream-water quality...
Map Database for Surficial Materials in the Conterminous United States
David R. Soller, Marith C. Reheis, Christopher P. Garrity, D. R. Van Sistine
2009, Data Series 425
The Earth's bedrock is overlain in many places by a loosely compacted and mostly unconsolidated blanket of sediments in which soils commonly are developed. These sediments generally were eroded from underlying rock, and then were transported and deposited. In places, they exceed 1000 ft (330 m) in thickness. Where the...
Flood of April 2007 and flood-frequency estimates at streamflow-gaging stations in western Connecticut
Elizabeth A. Ahearn
2009, Scientific Investigations Report 2009-5108
A spring nor’easter affected the East Coast of the United States from April 15 to 18, 2007. In Connecticut, rainfall varied from 3 inches to more than 7 inches. The combined effects of heavy rainfall over a short duration, high winds, and high tides led to widespread flooding, storm damage,...
Web-Based Geospatial Tools to Address Hazard Mitigation, Natural Resource Management, and Other Societal Issues
Hearn Jr.
2009, Fact Sheet 2009-3022
Federal, State, and local government agencies in the United States face a broad range of issues on a daily basis. Among these are natural hazard mitigation, homeland security, emergency response, economic and community development, water supply, and health and safety services. The U.S. Geological Survey (USGS) helps decision makers address...
Review of FEWS NET biophysical monitoring requirements
K. W. Ross, M.E. Brown, James P. Verdin, L. W. Underwood
2009, Environmental Research Letters (4)
The Famine Early Warning System Network (FEWS NET) provides monitoring and early warning support to decision makers responsible for responding to famine and food insecurity. FEWS NET transforms satellite remote sensing data into rainfall and vegetation information that can be used by these decision makers. The National Aeronautics and Space...
Navigability potential of Washington rivers and streams determined with hydraulic geometry and a geographic information system
Christopher S. Magirl, Theresa D. Olsen
2009, Scientific Investigations Report 2009-5122
Using discharge and channel geometry measurements from U.S. Geological Survey streamflow-gaging stations and data from a geographic information system, regression relations were derived to predict river depth, top width, and bottom width as a function of mean annual discharge for rivers in the State of Washington. A new technique also...
Potentiometric Surface of the Magothy Aquifer in Southern Maryland, September 2007
Stephen E. Curtin, David C. Andreasen, Andrew W. Staley
2009, Open-File Report 2009-1082
This report presents a map showing the potentiometric surface of the Magothy aquifer in the Magothy Formation of Late Cretaceous age in Southern Maryland during September 2007. The map is based on water-level measurements in 69 wells. The highest measured water level was 85 feet above sea level near the...
The Digital Shoreline Analysis System (DSAS) Version 4.0 - An ArcGIS extension for calculating shoreline change
E. Robert Thieler, Emily A. Himmelstoss, Jessica L. Zichichi, Ayhan Ergul
2009, Open-File Report 2008-1278
The Digital Shoreline Analysis System (DSAS) version 4.0 is a software extension to ESRI ArcGIS v.9.2 and above that enables a user to calculate shoreline rate-of-change statistics from multiple historic shoreline positions. A user-friendly interface of simple buttons and menus guides the user through the major steps of shoreline change...
SPARROW MODELING - Enhancing Understanding of the Nation's Water Quality
Stephen D. Preston, Richard B. Alexander, Michael D. Woodside, Pixie A. Hamilton
2009, Fact Sheet 2009-3019
The information provided here is intended to assist water-resources managers with interpretation of the U.S. Geological Survey (USGS) SPARROW model and its products. SPARROW models can be used to explain spatial patterns in monitored stream-water quality in relation to human activities and natural processes as defined by detailed geospatial information....
Earthquake hazards and lifelines in the Interstate 5 urban corridor: Cottage Grove to Woodburn, Oregon
E. A. Barnett, C.S. Weaver, K.L. Meagher, R. A. Haugerud, Z. Wang, I. P. Madin, Y. Wang, R.E. Wells, R.J. Blakely, D. B. Ballantyne, M. Darienzo
2009, Scientific Investigations Map 3028
The Interstate 5 highway (I-5) corridor, which stretches from Mexico to Canada, is both the main economic artery of the Pacific Northwest and home to the majority of Oregonians and Washingtonians. Accordingly, most regional utility and transportation systems have major components located within the I-5 corridor. For the purposes of...
Earthquake hazards and lifelines in the Interstate 5 urban corridor: Woodburn, Oregon, to Centralia, Washington
E. A. Barnett, C.S. Weaver, K.L. Meagher, R. A. Haugerud, Z. Wang, I. P. Madin, Y. Wang, R.E. Wells, R.J. Blakely, D. B. Ballantyne, M. Darienzo
2009, Scientific Investigations Map 3027
The Interstate 5 highway (I-5) corridor, which stretches from Mexico to Canada, is both the main economic artery of the Pacific Northwest and home to the majority of Oregonians and Washingtonians. Accordingly, most regional utility and transportation systems have major components located within the I-5 corridor. For the purposes of...
An integrated approach to benthic habitat mapping using remote sensing and GIS: An example from the Hawaiian Islands
A. E. Gibbs, Susan A. Cochran
X. Yang, editor(s)
2009, Book chapter, Remote sensing and geospatial technologies for coastal ecosystem assessment and management: Lecture Notes in Geoinformation and Cartography
This chapter documents our effort to map benthic habitats within the KalokoHonokohau National Historic Park, Hawai`i, USA. We produce detailed benthichabitat maps by using a combination of color aerial photography, high-resolution bathymetry, and georeferenced underwater video and still photography. We classify individual habitat polygons using five basic attributes and additional...
A neotropical migrant bird's dilemma: where to stop for a good meal
Joseph J. Fontaine, Charles van Riper III
2009, Fact Sheet 2009-3038
To learn how migrating birds determine where to stop and find food, scientists from the U.S. Geological Survey, Northern Arizona University, and The University of Arizona studied the behavior of 28 species of neotropical migrant songbirds - warblers, flycatchers, tanagers, and vireos - along the lower Colorado River from 2001...
Copper: a metal for the ages
Jeff Doebrich
2009, Fact Sheet 2009-3031
Copper was one of the first metals ever extracted and used by humans, and it has made vital contributions to sustaining and improving society since the dawn of civilization. Copper was first used in coins and ornaments starting about 8000 B.C., and at about 5500 B.C., copper tools helped civilization...
The Partition Intervalometer: A Programmable Underwater Timer for Marking Accumulated Sediment Profiles Collected in Anderson Sediment Traps: Development, Operation, Testing Procedures, and Field Results
Richard R. Rendigs, Roger Y. Anderson, Jingping Xu, Raymond E. Davis, Emile M. Bergeron
2009, Open-File Report 2009-1101
This manual illustrates the development of a programmable instrument designed to deploy a series of wafer-shaped discs (partitions) into the collection tube of a sediment trap in various aquatic environments. These hydrodynamically shaped discs are deployed at discrete time intervals from the Intervalometer and provide markers that delineate time intervals...
