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Page 26, results 626 - 650

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Not all publications have extents, not all extents are completely accurate
West Africa land use and land cover time series
Suzanne E. Cotillon
2017, Fact Sheet 2017-3004
Started in 1999, the West Africa Land Use Dynamics project represents an effort to map land use and land cover, characterize the trends in time and space, and understand their effects on the environment across West Africa. The outcome of the West Africa Land Use Dynamics project is the production...
Refining previous estimates of groundwater outflows from the Medina/Diversion Lake system, San Antonio area, Texas
Richard N. Slattery, William H. Asquith, John D. Gordon
2017, Fact Sheet 2017-3008
IntroductionIn 2016, the U.S. Geological Survey (USGS), in cooperation with the San Antonio Water System, began a study to refine previously derived estimates of groundwater outflows from Medina and Diversion Lakes in south-central Texas near San Antonio. When full, Medina and Diversion Lakes (hereinafter referred to as the Medina/Diversion Lake...
The 3D Elevation Program—Landslide recognition, hazard assessment, and mitigation support
Vicki Lukas, Carswell
2017, Fact Sheet 2016-3094
The U.S. Geological Survey (USGS) Landslide Hazards Program conducts landslide hazard assessments, pursues landslide investigations and forecasts, provides technical assistance to respond to landslide emergencies, and engages in outreach. All of these activities benefit from the availability of high-resolution, three-dimensional (3D) elevation information in the form of light...
Groundwater quality in the shallow aquifers of the Tulare, Kaweah, and Tule Groundwater Basins and adjacent highlands areas, Southern San Joaquin Valley, California
Miranda S. Fram
2017, Fact Sheet 2017-3001
Groundwater provides more than 40 percent of California’s drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State’s groundwater quality and increases public access to...
Water resources of East Feliciana Parish, Louisiana
Vincent E. White, Lawrence B. Prakken
2017, Fact Sheet 2016-3069
Information concerning the availability, use, and quality of water in East Feliciana Parish, Louisiana, is critical for proper water-resource management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information is presented...
Water resources of Calcasieu Parish, Louisiana
Vincent E. White, Lawrence B. Prakken
2017, Fact Sheet 2016-3066
Information concerning the availability, use, and quality of water in Calcasieu Parish, Louisiana, is critical for proper water-resource management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability,...
The USGS National Wildlife Health Center: Advancing wildlife and ecosystem health
Gail Moede Rogall, Jonathan M. Sleeman
2017, Fact Sheet 2016-3102
In 1975, the Federal government responded to the need for establishing national expertise in wildlife health by creating the National Wildlife Health Center (NWHC), a facility within the Department of the Interior; the NWHC is the only national center dedicated to wildlife disease detection, control, and prevention. Its mission is...
Changing water dynamics: The consequences of shifting snow, ice, and running water for ecosystems, people, and national forests in Alaska
Greg Hayward, Erik Johnson, Nathan Walker, Jeremy Littell, Julianne Thompson
2017, Report
Ecosystems of Alaska are rain-, snow-, and ice-driven systems. Consequently, the status of water—liquid or solid—strongly in uences resources and the people using ecosystem services. This document examines changes in water dynamics, the resulting consequences for ecosystems and people, and management options for adapting to changing conditions. Changes in snow, ice,...
Conflict minerals from the Democratic Republic of the Congo—Tin processing plants, a critical part of the tin supply chain
Charles Anderson
2017, Fact Sheet 2015-3022
Summary The U.S. Geological Survey (USGS) analyzes mineral and metal supply chains to identify and describe major components of material flows from ore extraction, through intermediate forms, to a final product. Supply chain analyses may be used (1) to identify risks to the United States associated with the supply of critical...
Groundwater quality in the Southeastern Coastal Plain aquifer system, southeastern United States
Jeannie Barlow, Bruce D. Lindsey, Kenneth Belitz
2016, Fact Sheet 2016-3076
Groundwater provides nearly 50 percent of the Nation’s drinking water. To help protect this vital resource, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Project assesses groundwater quality in aquifers that are important sources of drinking water. The Southeastern Coastal Plain aquifer system constitutes one of the important areas being evaluated. One or...
Groundwater quality in the Basin and Range Basin-Fill Aquifers, southwestern United States
MaryLynn Musgrove, Kenneth Belitz
2016, Fact Sheet 2016-3080
Groundwater provides nearly 50 percent of the Nation’s drinking water. To help protect this vital resource, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Project assesses groundwater quality in aquifers that are important sources of drinking water. The Basin and Range basin-fill aquifers constitute one of the important areas...
Groundwater quality in the Northern Atlantic Coastal Plain aquifer system, eastern United States
Bruce D. Lindsey, Kenneth Belitz
2016, Fact Sheet 2016-3078
Groundwater provides nearly 50 percent of the Nation’s drinking water. To help protect this vital resource, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Project assesses groundwater quality in aquifers that are important sources of drinking water. The Northern Atlantic Coastal Plain aquifer system constitutes one of the important...
Groundwater quality in the Valley and Ridge and Piedmont and Blue Ridge carbonate-rock aquifers, eastern United States
Bruce D. Lindsey, Kenneth Belitz
2016, Fact Sheet 2016-3079
Groundwater provides nearly 50 percent of the Nation’s drinking water. To help protect this vital resource, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Project assesses groundwater quality in aquifers that are important sources of drinking water. The Valley and Ridge and Piedmont and Blue Ridge carbonate-rock aquifers constitute two of the...
Groundwater quality in the Coastal Lowlands aquifer system, south-central United States
Jeannie R.B. Barlow, Kenneth Belitz
2016, Fact Sheet 2016-3077
Groundwater provides nearly 50 percent of the Nation’s drinking water. To help protect this vital resource, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Project assesses groundwater quality in aquifers that are important sources of drinking water. The Coastal Lowlands aquifer system constitutes one of the important areas being...
White-nose syndrome in North American bats - U.S. Geological Survey updates
Emily W. Lankau, Gail Moede Rogall
2016, Fact Sheet 2016-3084
White-nose syndrome is a devastating wildlife disease that has killed millions of hibernating bats. This disease first appeared in New York during 2007 and has continued to spread at an alarming rate from the northeastern to the central United States and throughout eastern Canada. The disease is named for the...
The 3D elevation program - Precision agriculture and other farm practices
Larry J. Sugarbaker, Carswell
2016, Fact Sheet 2016-3088
A founding motto of the Natural Resources Conservation Service (NRCS), originally the Soil Conservation Service (SCS), explains that “If we take care of the land, it will take care of us.” Digital elevation models (DEMs; see fig. 1) are derived from light detection and ranging (lidar) data and can be...
Science to support the understanding of Ohio's water resources, 2016-17
Kimberly Shaffer, Stephanie P. Kula
2016, Fact Sheet 2016-3087
Ohio’s water resources support a complex web of human activities and nature—clean and abundant water is needed for drinking, recreation, farming, and industry, as well as for fish and wildlife needs. Although rainfall in normal years can support these activities and needs, occasional floods and droughts can disrupt streamflow, groundwater,...
Assessment of coalbed gas resources of the Central and South Sumatra Basin Provinces, Indonesia, 2016
Christopher J. Schenk, Timothy R. Klett, Marilyn E. Tennyson, Tracey J. Mercier, Michael E. Brownfield, Janet K. Pitman, Stephanie B. Gaswirth, Thomas M. Finn
2016, Fact Sheet 2016-3089
Using a geology-based assessment methodology, the U.S. Geological Survey estimated a mean of 20 trillion cubic feet of undiscovered, technically recoverable coalbed gas resource in the Central and South Sumatra Basin Provinces of Indonesia....
Assessment of continuous oil and gas resources of the South Sumatra Basin Province, Indonesia, 2016
Christopher J. Schenk, Marilyn E. Tennyson, Timothy R. Klett, Thomas M. Finn, Tracey J. Mercier, Stephanie B. Gaswirth, Kristen R. Marra, Phuong A. Le, Sarah J. Hawkins
2016, Fact Sheet 2016-3090
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 689 million barrels of continuous shale oil and 3.9 trillion cubic feet of shale gas in the South Sumatra Basin Province in Indonesia....
Hampton roads regional Water-Quality Monitoring Program
Aaron J. Porter, John D. Jastram
2016, Fact Sheet 2016-3095
IntroductionHow much nitrogen, phosphorus, and suspended solids are contributed by the highly urbanized areas of the Hampton Roads region in Virginia to Chesapeake Bay? The answer to this complex question has major implications for policy decisions, resource allocations, and efforts aimed at restoring clean waters to Chesapeake Bay and its...
Selected streambed sediment compounds and water toxicity results for Westside Creeks, San Antonio, Texas, 2014
Cassi L. Crow, Jennifer T. Wilson, James L. Kunz
2016, Fact Sheet 2016-3096
IntroductionThe Alazán, Apache, Martínez, and San Pedro Creeks in San Antonio, Texas, are part of a network of urban tributaries to the San Antonio River, known locally as the Westside Creeks. The Westside Creeks flow through some of the oldest neighborhoods in San Antonio. The disruption of streambed sediment is...
Assessment of undiscovered continuous oil and gas resources in the Dnieper-Donets Basin and North Carpathian Basin Provinces, Ukraine, Romania, Moldova, and Poland, 2015
Timothy R. Klett, Christopher J. Schenk, Michael E. Brownfield, Ronald R. Charpentier, Tracey J. Mercier, Heidi M. Leathers-Miller, Marilyn E. Tennyson
2016, Fact Sheet 2016-3082
Using a geology-based methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 13 million barrels of oil and 2,643 billion cubic feet of natural gas in the Dnieper-Donets Basin and North Carpathian Basin Provinces of Ukraine, Romania, Moldova, and Poland....
Water resources of West Baton Rouge Parish, Louisiana
Vincent E. White, Lawrence B. Prakken
2016, Fact Sheet 2016-3068
Information concerning the availability, use, and quality of water in West Baton Rouge Parish, Louisiana, is critical for proper water-resource management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on...
Compounds of emerging concern in the San Antonio River Basin, Texas, 2011–12
Rebecca B. Lambert, Stephen P. Opsahl
2016, Fact Sheet 2016-3071
The City of San Antonio and the surrounding municipalities in Bexar County, Texas, are among the fastest growing cities in the Nation. Increases in residential and commercial development are changing runoff patterns and likely will increase chemical loads into streams. The U.S. Geological Survey, in cooperation with the San Antonio...
Assessment of undiscovered continuous oil resources in the Wolfcamp shale of the Midland Basin, Permian Basin Province, Texas, 2016
Stephanie B. Gaswirth, Kristen R. Marra, Paul G. Lillis, Tracey J. Mercier, Heidi M. Leathers-Miller, Christopher J. Schenk, Timothy R. Klett, Phuong A. Le, Marilyn E. Tennyson, Sarah J. Hawkins, Michael E. Brownfield, Janet K. Pitman, Thomas M. Finn
2016, Fact Sheet 2016-3092
Using a geology-based assessment methodology, the U.S. Geological Survey assessed technically recoverable mean resources of 20 billion barrels of oil and 16 trillion cubic feet of gas in the Wolfcamp shale in the Midland Basin part of the Permian Basin Province, Texas....