Time-domain electromagnetic soundings to characterize water quality within a freshwater/saline-water transition zone, Estancia Valley, New Mexico, July 2005: A reconnaissance study
Sachin D. Shah, Wade H. Kress, Lewis A. Land
2007, Fact Sheet 2007-3011
During July 2005, the U.S. Geological Survey, in cooperation with the New Mexico Bureau of Geology and Mineral Resources, conducted a reconnaissance study in the Estancia Valley in central New Mexico to characterize water quality using time-domain electromagnetic (TDEM) surface-geophysical soundings. TDEM sounding is one of a number of surface...
U.S. Geological Survey Mineral Resources Program - Science Supporting Mineral Resource Stewardship
S.J. Kropschot
2007, Fact Sheet 2007-3035
The United States is the world's largest user of mineral resources. We use them to build our homes and cities, fertilize our food crops, and create wealth that allows us to buy goods and services. Individuals rarely use nonfuel mineral resources in their natural state - we buy light bulbs,...
Changes in Water Levels and Storage in the High Plains Aquifer, Predevelopment to 2005
V. L. McGuire
2007, Fact Sheet 2007-3029
The High Plains aquifer underlies 111.4 million acres (174,000 square miles) in parts of eight States-Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. The area overlying the High Plains aquifer is one of the major agricultural regions in the world. Water-level declines began in parts of the...
The Marine Realms Information Bank family of digital libraries: access to free online information for coastal and marine science
Frances L. Lightsom, Alan O. Allwardt
2007, Fact Sheet 2007-3025
Searching the World Wide Web for reliable information about specific topics or locations can be frustrating: too many hits, too little relevance. A well-designed digital library, offering a carefully selected collection of online resources, is an attractive alternative to web search engines. The U.S. Geological Survey (USGS) provides three digital...
U.S. Geological Survey Streamgaging...from the National Streamflow Information Program
Scott A. Olson, J. Michael Norris
2007, Fact Sheet 2005-3131
This Fact Sheet is one in a series that highlights information or recent research findings from the USGS National Streamflow Information Program (NSIP). The investigations and scientific results reported in this series require a nationally consistent streamgaging network with stable long-term monitoring sites and a rigorous program of data, quality...
Ground-water recharge in humid areas of the United States: A summary of Ground-Water Resources Program studies, 2003-2006
Geoffrey N. Delin, Dennis W. Risser
2007, Fact Sheet 2007-3007
Increased demands on water resources by a growing population and recent droughts have raised awareness about the adequacy of ground-water resources in humid areas of the United States. The spatial and temporal variability of ground-water recharge are key factors that need to be quantified to determine the sustainability of ground-water...
Pesticides in ground water - Niobrara and Weston Counties, Wyoming, 2005-2006
Cheryl A. Eddy-Miller
2007, Fact Sheet 2007-3024
In 1991, members of local, State, and Federal governments, as well as industry and interest groups, formed the Ground-water and Pesticide Strategy Committee to prepare the State of Wyoming's generic Management Plan for Pesticides in Ground Water. Part of this management plan is to sample and analyze Wyoming's ground water...
How Much Water Is in the Apalachicola, Chattahoochee, and Flint Rivers, and How Much Is Used?
Mark N. Landers, Jaime A. Painter
2007, Fact Sheet 2007-3034
Questions of how much water is in the Apalachicola, Chattahoochee, and Flint (ACF) Rivers and how much is used do not have simple answers. The answers depend on the location in the river basin and on the year and season (as discussed on the first two pages of this fact...
Geographic Analysis and Monitoring Program
Jon C. Campbell
2007, Fact Sheet 2007-3030
The surface of the Earth is changing rapidly, at local, regional, national, and global scales, with significant repercussions for people, the economy, and the environment. Some changes have natural causes, such as wildland fires or hurricanes, while other changes on the land, such as resource extraction, agricultural practices, and urban...
Landsat Image Mosaic of Antarctica
Water Resources Division, U.S. Geological Survey
2007, Fact Sheet 2007-3016
Description Fact sheet introduces the Landsat Image Mosaic of Antarctica (LIMA) with images from a section of the mosaic over McMurdo Station, descriptions of the four versions of LIMA, where to access and download LIMA, and a brief explanation of the Antarctic Web portal....
The National Map - Orthoimagery Layer
Water Resources Division, U.S. Geological Survey
2007, Fact Sheet 2007-3008
Many Federal, State, and local agencies use a common set of framework geographic information databases as a tool for economic and community development, land and natural resource management, and health and safety services. Emergency management and homeland security applications rely on this information. Private industry, nongovernmental organizations, and individual citizens...
Biomarker Benchmarks: Reproductive and Endocrine Biomarkers in Largemouth Bass and Common Carp from United States Waters
Steven L. Goodbred, Stephen B. Smith, Patricia S. Greene, Richard H. Rauschenberger, Timothy M. Bartish
2007, Fact Sheet 2007-3026
The U.S. Geological Survey (USGS) has developed a national database and report on endocrine and reproductive condition in two species of fish collected in U.S. streams and rivers. This information provides scientists with a national basis for comparing results of endocrine measurements in fish from individual sites throughout the country,...
Pesticides in surface water in the Bighorn River and North Platte River basins, Wyoming, 2006
Cheryl A. Eddy-Miller, Gregory K. Boughton, R. E. Woodruff
2007, Fact Sheet 2007-3017
In 2006, the U.S. Geological Survey (USGS), in cooperation with the Wyoming Department of Agriculture, sampled five surface-water sites in Wyoming-three in the Bighorn River Basin (BRB) and two in the North Platte River Basin (NPRB) (fig. 1). The purpose of the sampling was to describe the occurrence of pesticides...
U.S. Geological Survey Ground-Water Climate Response Network
Water Resources Division, U.S. Geological Survey
2007, Fact Sheet 2007-3003
The U.S. Geological Survey serves the Nation by providing reliable hydrologic information used by others to manage the Nation's water resources. The U.S. Geological Survey (USGS) measures more than 20,000 wells each year for a variety of objectives as part of Federal programs and in cooperation with State and local agencies....
Availability of Ground-Water Data for Idaho, Water Year 2006
A.M. Campbell
2007, Fact Sheet 2007-3031
Introduction The Water Resources Division of the U.S. Geological Survey, in cooperation with Federal, State, and local water agencies, collects a large amount of data each year pertaining to the ground-water resources of Idaho. These data constitute a valuable database for developing an improved understanding of the water resources of the...
The U.S. Geological Survey Land Remote Sensing Program
Water Resources Division, U.S. Geological Survey
2007, Fact Sheet 2007-3021
The fundamental goals of the U.S. Geological Survey's Land Remote Sens-ing (LRS) Program are to provide the Federal Government and the public with a primary source of remotely sensed data and applications and to be a leader in defining the future of land remote sensing, nationally and internationally. Remotely sensed data...
Divisions of Geologic Time—Major Chronostratigraphic and Geochronologic Units
U.S. Geological Survey Geologic Names Committee
2007, Fact Sheet 2007-3015
Effective communication in the geosciences requires consistent uses of stratigraphic nomenclature, especially divisions of geologic time. A geologic time scale is composed of standard stratigraphic divisions based on rock sequences and calibrated in years. Over the years, the development of new dating methods and refinement of previous ones have stimulated...
Assessment of Undiscovered Natural Gas Resources of the Sacramento Basin Province of California, 2006
Allegra Hosford Scheirer, Marilyn E. Tennyson, Leslie B. Magoon, Ronald R. Charpentier, Troy A. Cook, Timothy R. Klett, Richard M. Pollastro, Christopher J. Schenk
2007, Fact Sheet 2007-3014
The U.S. Geological Survey (USGS) recently completed a new assessment of undiscovered natural gas resources of the Sacramento Basin Province of California. Using a geology-based assessment methodology, the USGS mean estimates of undiscovered, technically recoverable resources are 534 billion cubic feet of natural gas and 323 thousand barrels of natural...
Physiological Ecology and Ecohydrology of Coastal Forested Wetlands
Ken W. Krauss
2007, Fact Sheet 2007-3018
The form, function, and productivity of wetland communities are influenced strongly by the hydrologic regime of an area. Wetland ecosystems persist by depending upon surpluses of rainfall, evapotranspiration, soil moisture, and frequency and amplitude of water-level fluctuations. Yet, wetland vegetation can also influence ecosystem water economy through conservative water- and...
Alaska Science Center: Providing Timely, Relevant, and Impartial Study of the Landscape, Natural Resources, and Natural Hazards for Alaska and Our Nation
USGS Alaska Science Center
2007, Fact Sheet 2007-3019
The U.S. Geological Survey (USGS), the Nation's largest water, earth, and biological science and civilian mapping agency, has studied the natural features of Alaska since its earliest geologic expeditions in the 1800s. The USGS Alaska Science Center (ASC), with headquarters in Anchorage, Alaska, studies the complex natural science phenomena of...
Research Furthers Conservation of Grand Canyon Sandbars
Theodore S. Melis, David J. Topping, David M. Rubin, Scott Wright
2007, Fact Sheet 2007-3020
Grand Canyon National Park lies approximately 25 km (15 mi) down-river from Glen Canyon Dam, which was built on the Colorado River just south of the Arizona-Utah border in Glen Canyon National Recreation Area. Before the dam began to regulate the Colorado River in 1963, the river carried such large...
Ground-Water Recharge in Minnesota
G. N. Delin, J.D. Falteisek
2007, Fact Sheet 2007-3002
'Ground-water recharge' broadly describes the addition of water to the ground-water system. Most water recharging the ground-water system moves relatively rapidly to surface-water bodies and sustains streamflow, lake levels, and wetlands. Over the long term, recharge is generally balanced by discharge to surface waters, to plants, and to deeper parts...
Assessment of Undiscovered Gas Resources in the Upper Cretaceous Tuscaloosa and Woodbine Formations, Western Gulf Province of the Gulf Coast Region, Louisiana and Texas, 2007
Water Resources Division, U.S. Geological Survey
2007, Fact Sheet 2006-3146
Using a geology-based assessment methodology, the U.S. Geological Survey estimated a mean of 20.8 trillion cubic feet of undiscovered natural gas and a mean of 0.60 billion barrels of undiscovered natural gas liquids in the Western Gulf Province of the Gulf Coast Region, Louisiana and Texas....
International Polar Year: Science at the Ends of the Earth
Water Resources Division, U.S. Geological Survey
2007, Fact Sheet 2007-3013
In response to unprecedented changes in the fragile polar regions of our planet, the International Polar Year (IPY) 2007-2008 will encompass many scientific studies designed to improve our understanding of polar change and its effects on Earth's ecosystems and people. For 2 years, U.S. Geological Survey (USGS) researchers will don...
The National Streamflow Statistics Program: Estimating High and Low Streamflow Statistics for Ungaged Sites
D. Phil Turnipseed, Kernell G. Ries III
2007, Fact Sheet 2007-3010
