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Results for “General Interest Publication”

Search indexed USGS publications on groundwater, aquifers, geologic maps, mineral resources and earthquakes. Explore source records by subject and place.

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At least 19 recordsLinked to original sources
USGS1998

North American landscape characterization project: The production of a continental scale three-decade Landsat data set

The North American Landscape Characterization (NALC) project is a component of the National Aeronautics and Space Administration (NASA) Landsat Pathfinder program. Pathfinder projects are focused on the investigation of global change utilizing current remote sensing technologies. The NALC project is a cooperative effort between the U. S. Environmental Protection Agency (EPA), the U.S. Geological Survey (USGS), and NASA to make Landsat data available to the widest possible user community for scientific research and general public interest. The NALC project is principally funded by the EPA Office of Research and Development and the USGS's Earth Resources Observation Systems (EROS) Data Center (EDC). The objectives of the NALC project are to produce standardized remote sensing data sets, develop standardized analysis methods, and derive standardized land cover change products for a large portion of the North American continent (the conterminous United States and Mexico) (Lunetta and Sturdevant, 1993). The standard product is the NALC “triplicate”;, consisting of co‐registered Landsat multispectral scanner data for the years 1973, 1986, and 1991 (plus or minus one year), plus co‐registered 3 arcsecond digital terrain elevation data. Processing began with the 1986 scene, which was precision corrected (with full terrain correction) to a 60 meter Universal Transverse Mercator base. Automated cross‐correlation procedures were used to co‐register the 1970's and 1990's data to the 1980's base, and independent verifications of registration quality were performed on all triplicate components. The pertinent metadata were compiled in a relational database, which includes WRS2 path/rows, scene ID's, image dates, solar azimuth and elevation, verification RMSE's, and the number of verification control points. NALC triplicate data sets are being used for a number of applications, including the analysis of urbanization patterns, dynamics of climatic fluctuations, deforestation studies, and vegetation classification and mapping. These data are being distributed through the Earth Observing System Data and Information System (EOSDIS) Information Management System (IMS) at a cost of $15(U.S.) for each triplicate.

Geocarto International↗
USGS1994

Guidebook on the geology, history, and surface-water contamination and remediation in the area from Denver to Idaho Springs, Colorado

This guidebook for a 1-day drive in the Front Range west of Denver, Colorado, includes commentary on mountain landscapes, notes on the colorful mining history of the area, and discussions on the geology and some miningrelated environmental hazards in the Idaho Springs area. It was originally prepared as U.S. Geological Survey OpenFile Report 91-426 for a field trip sponsored by Division A-5 (Environmental Quality) of the Soil Science Society of America on October 10, 1991. That original report has been revised and expanded to make this circular more useful as a self-contained guide. A pamphlet entitled "Mountains and Plains: Denver's Geologic Setting" is a complimentary general interest publication that is available free of charge from map sales in building 810 on the Denver Federal Center, Lakewood, Colorado. The pamphlet contains useful background information on the geologic setting of Denver and nearby portions of the Front Range. A few precautions and suggestions are offered to make the trip safe and enjoyable. Idaho Springs is about 7,500 feet above sea level and the lower oxygen content of the air (about 50 percent that of sea level) may adversely affect people with heart or breathing problems. The wetlands are "wet" so use suitable footwear. The daily weather patterns are changeable. Mornings in Denver may be sunny and warm, but afternoons in Idaho Springs may be cloudy, windy, and cool with rain or snow; be prepared for all types of mountain weather. As you travel westward from Denver into the mountains, successively older rocks are crossed. By studying the descriptions at the various mileage points and by taking time at each described STOP, you will get an excellent overview of the geologic events that shaped the Denver Basin and the mountains to the west. After traveling some 18 miles into the mountains, you will reach the old mining town of Idaho Springs. Here, you can learn about the two longest tunnels in the area-the Argo and Big Five Tunnels-and how the mine drainage affects the water of Clear Creek. The Argo Tunnel near the east end of Idaho Springs drains part of the large Central City and Idaho Springs hardrock mining districts and is a source of acid water (which contains arsenic and other heavy metals) that drains into Clear Creek. At the west end ofldaho Springs is the Big Five Tunnel. Near the tunnel entrance an experimental constructed wetland demonstrates technology for the remediation of acid-mine drainage and removal of arsenic and heavy metals. Take an opportunity to view this experimental method for treatment of mine drainage. For access to the wetlands, prior arrangements must be made with the Department of Environmental Sciences and Engineering Ecology or Department of Chemistry and Geochemistry, Colorado School of Mines in Golden, Colorado. Otherwise, the wetlands may be viewed from the road. Permission to enter the Argo Tunnel property may be obtained from Jim Maxwell of Idaho Springs, who owns the hot springs resort. The tunnel may also be viewed from public roads. After you leave Idaho Springs, the road log guides you down Clear Creek canyon, providing an opportunity to get a closer look at the various Precambrian rocks while traveling through one of Colorado's picturesque canyons.

Denver, Idaho Springs↗
USGS1963

A primer on ground water

Most of us don't have to look for water. We grew up either in big cities where there was a public water supply, or in small towns or on farms where the water came from wells. But there are some people to whom finding a new supply of water is vitally important.

General Interest Publication↗
USGS1990

Volcanic and seismic hazards on the Island of Hawaii

The eruptions of volcanoes often have direct, dramatic effects on the lives of people and on their property. People who live on or near active volcanoes can benefit greatly from clear, scientific information about the volcanic and seismic hazards of the area. This booklet provides such information for the residents of Hawaii so they may effectively deal with the special geologic hazards of the island. Identifying and evaluating possible geologic hazards is one of the principal roles of the U.S. Geological Survey (USGS) and its Hawaiian Volcano Observatory. When USGS scientists recognize a potential hazard, such as an impending eruption, they notify the appropriate government officials, who in turn are responsible for advising the public to evacuate certain areas or to take other actions to insure their safety. This booklet was prepared in cooperation with the Hawaii County Civil Defense Agency.

General Interest Publication↗
USGS1972

The EROS Data Center

The EROS Data Center in Sioux Falls, South Dakota, is operated for the Earth Resources Observation Systems Program of the Department of the Interior by the Topographic Division of the Geological Survey to provide access to Earth Resources Technology Satellite (ERTS) imagery, USGS aerial photography, and NASA aircraft data for the general public, domestic government agencies at all levels, and foreign government agencies at all levels, and foreign governments. Facilities are available for data storage, retrieval, reproduction, and dissemination, and for user assistance and training.

South Dakota↗
USGS1973

Ferdinand Vandiveer Hayden and the founding of the Yellowstone National Park

Following the Civil War, the United States intensified the exploration of her western frontiers to gain a measure of the vast lands and natural resources in the region now occupied by our Rocky Mountain States. As part of this effort, the U.S. Geological and Geographical Survey of the Territories was formed and staffed under the leadership of geologist Ferdinand Vandiveer Hayden. Originally organized under the U.S. Public Land Office in 1861, the Hayden Survey (as it was most often identified) was placed under the Secretary of the Interior in 1869 and later, under the newly created U.S. Geological Survey. Its records, maps, and photographs were then transferred to the latter agency. In commemorating the centennial of Yellowstone National Park, the U.S. Geological Survey drew upon those items deposited by Hayden to describe the early exploration of the Yellowstone area and to recount events that led to the establishment of Yellowstone as the Nation's first national park.

General Interest Publication↗
USGS1992

Deserts: Geology and resources

Approximately one-third of the Earth's land surface is desert, arid land with meager rainfall that supports only sparse vegetation and a limited population of people and animals. Deserts stark, sometimes mysterious worlds have been portrayed as fascinating environments of adventure and exploration from narratives such as that of Lawrence of Arabia to movies such as "Dune." These arid regions are called deserts because they are dry. They may be hot, they may be cold. They may be regions of sand or vast areas of rocks and gravel peppered with occasional plants. But deserts are always dry. Deserts are natural laboratories in which to study the interactions of wind and sometimes water on the arid surfaces of planets. They contain valuable mineral deposits that were formed in the arid environment or that were exposed by erosion. Because deserts are dry, they are ideal places for human artifacts and fossils to be preserved. Deserts are also fragile environments. The misuse of these lands is a serious and growing problem in parts of our world.

General Interest Publication↗
USGS1998

Earthquakes

One of the most frightening and destructive phenomena of nature is a severe earthquake and its terrible aftereffects. An earthquake is a sudden movement of the Earth, caused by the abrupt release of strain that has accumulated over a long time. For hundreds of millions of years, the forces of plate tectonics have shaped the Earth as the huge plates that form the Earth's surface slowly move over, under, and past each other. Sometimes the movement is gradual. At other times, the plates are locked together, unable to release the accumulating energy. When the accumulated energy grows strong enough, the plates break free. If the earthquake occurs in a populated area, it may cause many deaths and injuries and extensive property damage. Today we are challenging the assumption that earthquakes must present an uncontrollable and unpredictable hazard to life and property. Scientists have begun to estimate the locations and likelihoods of future damaging earthquakes. Sites of greatest hazard are being identified, and definite progress is being made in designing structures that will withstand the effects of earthquakes.

General Interest Publication↗