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...
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...
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...
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
Landslide hazards in the Seattle, Washington, area
Rex Baum, Ed Harp, Lynn Highland
2007, Fact Sheet 2007-3005
The Seattle, Washington, area is known for its livability and its magnificent natural setting. The city and nearby communities are surrounded by an abundance of rivers and lakes and by the bays of Puget Sound. Two majestic mountain ranges, the Olympics and the Cascades, rim the region. These dramatic natural...
Natural Hazards - A National Threat
U.S. Geological Survey
2007, Fact Sheet 2007-3009
The USGS Role in Reducing Disaster Losses -- In the United States each year, natural hazards cause hundreds of deaths and cost billions of dollars in disaster aid, disruption of commerce, and destruction of homes and critical infrastructure. Although the number of lives lost to natural hazards each year generally has...
Investigating the Environmental Effects of Agriculture Practices on Natural Resources: Scientific Contributions of the U.S. Geological Survey to Enhance the Management of Agricultural Landscapes
Water Resources Division, U.S. Geological Survey
2007, Fact Sheet 2007-3001
The U.S. Geological Survey (USGS) enhances and protects the quality of life in the United States by advancing scientific knowledge to facilitate effective management of hydrologic, biologic, and geologic resources. Results of selected USGS research and monitoring projects in agricultural landscapes are presented in this Fact Sheet. Significant environmental and...
Regional Water-Resources Studies in Nevada
Eva M. Bauer, Shannon C. Watermolen
2007, Fact Sheet 2007-3006
Introduction: Water-resources information for the State of Nevada should be readily accessible to community planners and the general public in a user-friendly web environment and should be actively managed and maintained with accurate historic and current hydrologic data. The USGS, in cooperation with State of Nevada and local government agencies,...
Harmful algal blooms
Jennifer L. Graham
2007, Fact Sheet 2006-3147
What are Harmful Algal Blooms (HABs)? Freshwater and marine harmful algal blooms (HABs) can occur anytime water use is impaired due to excessive accumulations of algae. HAB occurrence is affected by a complex set of physical, chemical, biological, hydrological, and meteorological conditions making it difficult to isolate specific causative environmental factors....
U.S. Geological Survey Assessment of Undiscovered Petroleum Resources of the Hamra Basin, Libya, 2006
Water Resources Division, U.S. Geological Survey
2007, Fact Sheet 2006-3140
The Hamra Basin Province encompasses approximately 244,100 square kilometers (94,250 square miles) and is entirely within Libya. One composite total petroleum system (TPS) was defined for this assessment; it extends from Libya westward into adjacent parts of Algeria and southern Tunisia. The Hamra Basin part of the TPS was subdivided...
Earthquake hazard in the heart of the homeland
Joan Gomberg, Eugene Schweig
2007, Fact Sheet 2006-3125
Evidence that earthquakes threaten the Mississippi, Ohio, and Wabash River valleys of the Central United States abounds. In fact, several of the largest historical earthquakes to strike the continental United States occurred in the winter of 1811-1812 along the New Madrid seismic zone, which stretches from just west of Memphis,...
Welcome to the National Wetlands Research Center Library: Not Just Another Library-A Special Library
Linda Broussard
2007, Fact Sheet 2007-3028
Libraries are grouped into four major types: public, school, academic, and special. The U.S. Geological Survey's (USGS) National Wetlands Research Center (NWRC) library is classified as a special library because it is sponsored by the Federal government, and the collections focus on a specific subject. The NWRC library is the...
Chronic Wasting Disease
Bryan Richards
2007, Fact Sheet 2007-3070
Chronic wasting disease (CWD) is an always-fatal, neurological illness occurring in North American cervids (members of the deer family), including white-tailed deer, mule deer, elk and moose. Since its discovery in 1967, CWD has spread geographically and increased in prevalence locally. CWD is contagious; it can be transmitted freely within...
Chronic Wasting Disease Positive Tissue Bank
Scott D. Wright
2007, Fact Sheet 2007-3059
In 2005, the USGS National Wildlife Health Center entered into an agreement with the Wyoming Game and Fish Department and the Department of Veterinary Sciences at the University of Wyoming to produce a collection of positive tissues from cervids intentionally infected with chronic wasting disease. This agreement was facilitated through...
Welcome to the National Wetlands Research Center Library: Successful Research Begins @ Your Library
Linda Broussard
2007, Fact Sheet 2007-3033
The National Wetlands Research Center (NWRC) library is part of the U.S. Geological Survey (USGS) and is the only USGS library dedicated to wetland science. The mission of the NWRC library is to support the research and information needs of scientists, managers, and support personnel by providing a specialized, scientific...
Studies on Disinfection By-Products and Drinking Water
Colleen E. Rostad
2007, Fact Sheet 2004-3032
Drinking water is disinfected with chemicals to remove pathogens, such as Giardia and Cryptosproridium, and prevent waterborne diseases such as cholera and typhoid. During disinfection, by-products are formed at trace concentrations. Because some of these by-products are suspected carcinogens, drinking water utilities must maintain the effectiveness of the disinfection process...
USGS Fire Science: Fire Danger Monitoring and Forecasting
Jeff Eidenshink
2007, Fact Sheet 2005-3066
The U.S. Geological Survey (USGS) has advanced the use of moderate-resolution satellite data in a decision support system for assessing national fire potential. Weekly updated digital images of the Normalized Difference Vegetation Index (NDVI), based on data acquired at 1-kilometer (km) resolution (about 0.6 mi), have been used for the...
Wildfire hazards—A national threat
Water Resources Division, U.S. Geological Survey
2006, Fact Sheet 2006-3015
Wildfires are a growing natural hazard in most regions of the United States, posing a threat to life and property, particularly where native ecosystems meet developed areas.However, because fire is a natural (and often beneficial) process, fire suppression can lead to more severe fires due to the buildup of vegetation,...
Highly Pathogenic Avian Influenza Early Detection Data System (HEDDS)
Robert Worrest, F. Joshua Dein
2006, Report
HEDDS offers a unique opportunity for multiagency cooperation for data sharing and visualization....
Streamstats: U.S. Geological Survey web application for streamflow statistics for Connecticut
Elizabeth A. Ahearn, Kernell G. Ries III, Peter A. Steeves
2006, Fact Sheet 2006-3129
Introduction An important mission of the U. S. Geological Survey (USGS) is to provide information on streamflow in the Nation's rivers. Streamflow statistics are used by water managers, engineers, scientists, and others to protect people and property during floods and droughts, and to manage land, water, and biological resources. Common uses...
USGS reports latest land-water changes for southeastern Louisiana
John A. Barras, James B. Johnston
2006, Fact Sheet 2006-3030
The USGS National Wetlands Research Center is reporting that a total of 118 square miles of land has been transformed to new water areas in a 9,742 square mile area from the Chandeleur Islands to the Atchafalaya River. This area encompasses the basins of Breton Sound, Mississippi River, Pearl River,...
