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Publication Extents

Not all publications have extents, not all extents are completely accurate
Mobile Response Team Saves Lives in Volcano Crises
John W. Ewert, C. Dan Miller, James W. Hendley II, Peter H. Stauffer
1997, Fact Sheet 064-97
The world's only volcano crisis response team, organized and operated by the USGS, can be quickly mobilized to assess and monitor hazards at volcanoes threatening to erupt. Since 1986, the team has responded to more than a dozen volcano crises as part of the Volcano Disaster Assistance Program (VDAP), a...
Living on active volcanoes - The Island of Hawai'i
Christina Heliker, Peter H. Stauffer, James W. Hendley II
1997, Fact Sheet 074-97
People on the Island of Hawai'i face many hazards that come with living on or near active volcanoes. These include lava flows, explosive eruptions, volcanic smog, damaging earthquakes, and tsunamis (giant seawaves). As the population of the island grows, the task of reducing the risk from volcano hazards becomes increasingly...
Natural disasters: forecasting economic and life losses
Stuart P. Nishenko, Christopher C. Barton
1997, Report
Events such as hurricanes, earthquakes, floods, tsunamis, volcanic eruptions, and tornadoes are natural disasters because they negatively impact society, and so they must be measured and understood in human-related terms. At the U.S. Geological Survey, we have developed a new method to examine fatality and dollar-loss data, and to make...
Coastal wetlands and global change: overview
G.R. Guntenspergen, B. Vairin, V.R. Burkett
1997, Fact Sheet 089-97
The potential impacts of climate change are of great practical concern to those interested in coastal wetland resources. Among the areas of greatest risk in the United States are low-lying coastal habitats with easily eroded substrates which occur along the northern Gulf of Mexico and southeast Atlantic coasts. The Intergovernmental...
Salt tolerance of southern baldcypress
James A. Allen, Virginia R. Burkett
1997, Fact Sheet 092-97
Historically, cypress-tupelo swamps covered much of the low-lying coastal regions of the Southeast. However, saltwater intrusion and increased flooding over the past 30 years, combined with past logging, have depleted the numbers and decreased the survival and growth of baldcypress (Taxodium distichum) in coastal areas along the Gulf of Mexico....
Monitoring for pesticides in ground water in Nevada
Patricia A. Adams, Charles W. Moses, Hugh E. Bevans
1997, Fact Sheet 139-97
Many pesticides designed to control weed encroachment, plant disease, and insect predation are used in agricultural and urban areas in the United States. Contamination of ground water by pesticides has increased over the last 20 years (U.S. Environmental Protection Agency, 1992). In 1985, the U.S. Environmental Protection Agency (USEPA) estimated...
Revision and product generation software
Water Resources Division, U.S. Geological Survey
1997, Fact Sheet 045-97
The U.S. Geological Survey (USGS) developed revision and product generation (RevPG) software for updating digital line graph (DLG) data and producing maps from such data. This software is based on ARC/INFO, a geographic information system from Environmental Systems Resource Institute (ESRI). RevPG consists of ARC/INFO Arc Macro Language (AML) programs,...
Technology Transfer Opportunities: Automated Ground-Water Monitoring
Kirk P. Smith, Gregory E. Granato
1997, Fact Sheet 112-97
Introduction A new automated ground-water monitoring system developed by the U.S. Geological Survey (USGS) 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 have shown...
Land Cover Characterization Program
Water Resources Division, U.S. Geological Survey
1997, Fact Sheet 048-97
The U.S. Geological Survey (USGS) has a long heritage of leadership and innovation in land use and land cover mapping. The USGS Anderson system defined the principles for land use and land cover mapping that have been the model both nationally and internationally for more than 20 years. The Land...
US GeoData digital elevation models
Water Resources Division, U.S. Geological Survey
1997, Fact Sheet 102-96
Digital elevation model (DEM) data consist of a sampled array of regularly spaced elevation values referenced horizontally either to a Universal Transverse Mercator (UTM) projection or to a geographic coordinate system. The grid cells are spaced at regular intervals along south to north profiles that are ordered from west to...
Looking for an old aerial photograph
Water Resources Division, U.S. Geological Survey
1997, Fact Sheet 127-96
Attempts to photograph the surface of the Earth date from the 1800's, when photographers attached cameras to balloons, kites, and even pigeons. Today, aerial photographs and satellite images are commonplace. The rate of acquiring aerial photographs and satellite images has increased rapidly in recent years. Views of the Earth obtained from...