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www .usgs .gov. The United States Geological Survey ( USGS ), founded as the Geological Survey, is an agency of the United States government whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on March 3, 1879, to study the landscape of the United States, its natural resources, and the natural ...
The Shuttle Radar Topography Mission ( SRTM) is an international research effort that obtained digital elevation models on a near-global scale from 56°S to 60°N, [ 2]: 4820 to generate the most complete high-resolution digital topographic database of Earth prior to the release of the ASTER GDEM in 2009. SRTM consisted of a specially modified ...
The Geological Survey of Canada ( GSC; French: Commission géologique du Canada, CGC) is a Canadian federal government agency responsible for performing geological surveys of the country developing Canada's natural resources and protecting the environment. A branch of the Earth Sciences Sector of Natural Resources Canada, the GSC is the country ...
The Advanced Very-High-Resolution Radiometer (AVHRR) instrument is a space-borne sensor that measures the reflectance of the Earth in five spectral bands that are relatively wide by today's standards. AVHRR instruments are or have been carried by the National Oceanic and Atmospheric Administration (NOAA) family of polar orbiting platforms ...
Landsat 7, launched in 1999, is the 7th of 9 satellites in the Landsat program. A false-color satellite image of Kolkata, India, from Landsat 7 in 2004, showing rivers, vegetated areas, and developed areas. A land cover map of the big island of Hawaii using 1999–2001 data from Landsat 7, showing black lava flows from Mauna Loa, grayish ...
Explorer Plate. / 49.5; -129.5. The Explorer Plate is an oceanic tectonic plate beneath the Pacific Ocean off the west coast of Vancouver Island, Canada, which is partially subducted under the North American Plate. Along with the Juan de Fuca Plate and Gorda Plate, the Explorer Plate is a remnant of the ancient Farallon Plate, which has been ...
Coordinates: 43.735926°N 96.625324°W. The Center for Earth Resources Observation and Science (EROS) is a United States Geological Survey data management, systems development, and research field center. It serves as the national archive of remotely sensed images of the Earth's land surface acquired by civilian satellites and aircraft.
The International Union of Geological Science, one of the world’s largest scientific organizations, has named Dry Falls as one of its first 100 notable Geological Heritage Sites worldwide.