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Technology Transfer Opportunities: Automated Ground-Water Monitoring, A Proven Technology
Kirk P. Smith, Gregory E. Granato
1998, Fact Sheet 122-98
Introduction The U.S. Geological Survey (USGS) has developed and tested an automated ground-water monitoring system that measures and records values of selected water-quality properties and constituents using protocols approved for manual sampling. Prototypes using the automated process have demonstrated the ability to increase the quantity and quality of data collected and...
Declassified intelligence satellite photographs
Water Resources Division, U.S. Geological Survey
1998, Fact Sheet 090-96
Recently declassified photographs from spy satellites are an important addition to the record of the Earth?s land surface held by the U.S. Geological Survey (USGS). More than 800,000 high-resolution photos taken between 1959 through 1972 were made available by Executive Order of the President. The collection is held at the...
Walden Pond, Massachusetts: Environmental setting and current investigations
John A. Colman, Marcus C. Waldron
1998, Fact Sheet 064-98
Introduction Walden Pond, in Concord, Massachusetts, is famous among lakes because of its unique social history. Walden was the setting for American naturalist Henry David Thoreau's well-known essay 'Walden; or, Life in the Woods,' first published in 1854. Thoreau lived and wrote at Walden Pond from July 1845 to September 1847....
Effectiveness of barnyard best management practices in Wisconsin
Todd D. Stuntebeck, Roger T. Bannerman
1998, Fact Sheet 051-98
In 1978, the Wisconsin Legislature committed to protecting water quality by enacting the Nonpoint Source Water Pollution Abatement Program. Through this program, cost-share money is provided within priority watersheds to control sources of nonpoint pollution. Most of the cost-share dollars for rural watersheds have been used to implement barnyard Best...
Computed discharges at five sites in lower Laguna Madre near Port Isabel, Texas, June 1997
Jeffrey W. East, R.S. Solis, D.J. Ockerman
1998, Fact Sheet 167-98
The Texas Water Development Board (TWDB), Texas Parks and Wildlife Department (TPWD), and Texas Natural Resource Conservation Commission (TNRCC) are charged by the Texas Legislature with determining freshwater inflows required to maintain the ecological health of streams, bays, and estuaries in Texas. To determine required inflows, the three agencies collect...
Investigation of salt loss from the Bonneville Salt Flats, northwestern Utah
James L. Mason, Kenneth L. Kipp
1997, Fact Sheet 135-97
The Bonneville Salt Flats study area is located in the western part of the Great Salt Lake Desert in northwestern Utah, about 110 miles west of Salt Lake City. The salt crust covers about 50 square miles, but the extent varies yearly as a result of salt being dissolved by...
Effects of climate change on southeastern forests
Paul A. Harcombe
1997, Fact Sheet 093-97
Forests of the coastal plain region of the southeastern United States are among the most productive in North America. Because they form the basis of a large timber and wood products industry, these forests are of considerable economic importance. Also, the forests are rich in plant and animal species. Because...
Using remote sensing to monitor global change
Elijah W. Ramsey III
1997, Fact Sheet 096-97
To properly respond to natural and human-induced stresses to wetlands, resource managers must consider their functions and values. Remote sensing is an important tool for monitoring wetland responses to changes in the hydrologic regime and water quality caused by global climate change and sea-level rise....
Predicting coastal flooding and wetland loss
Thomas W. Doyle
1997, Fact Sheet 094-97
The southeastern coastal region encompasses vast areas of wetland habitat important to wildlife and other economically valuable natural resources. Located on the interface between sea and land, these wetland habitats are affected by both sea-level rise and hurricanes, and possibly by hydroperiod associated with regional climatic shifts. Increased sea level...
Global warming, sea-level rise, and coastal marsh survival
Donald R. Cahoon
1997, Fact Sheet 091-97
Coastal wetlands are among the most productive ecosystems in the world. These wetlands at the land-ocean margin provide many direct benefits to humans, including habitat for commercially important fisheries and wildlife; storm protection; improved water quality through sediment, nutrient, and pollution removal; recreation; and aesthetic values. These valuable ecosystems will...
Global change and submerged aquatic vegetation research
H.A. Neckles, G.R. Guntenspergen, W.M. Rizzo, T.C. Michot
1997, Fact Sheet 090-97
Communities of submerged aquatic vegetation (SAY) are important components of many freshwater, brackish, and marine aquatic ecosystems. They prevent erosion by baffling the impacts of waves, especially from storms. These aquatic plant communities remove nutrients and other pollutants from river and runoff inputs to coastal areas, preventing their entry into surrounding waters. They...