USGS: Science Topics: geography

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Geography

Study of the earth's landforms, topography, and climate, the distribution of flora and fauna, and the distribution, culture, and activities of human populations.

Subtopics:
Cartography (64 items)
Paleogeography (1 items)

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Results 31 - 40 of 159 listed by similarity [list alphabetically]

Costly landslide events in the United States: map layer description file [More info]: GIS data set from the USGS National Landslides Hazards Program showing major landslide events in the United States and Puerto Rico with metadata. Map layer can be downloaded in shapefile format or SDTS format.
County boundaries 2001: map layer description file [More info]: One of many map layers of the National Atlas giving county boundaries with metadata. The county boundaries map layer can be downloaded in shapefile or SDTS formats.
Crater Lake Data Clearinghouse [More info]: The Crater Lake Data Clearinghouse website is a gateway to information and data on Crater Lake with links to data downloads of bathymetry, maps and imagery, a fly-by movie, photos, and information on geology, maps, history, and biota.
Cruise report by Coastal Surveyor Cruise C-1-99-SC: multibeam mapping of the Long Beach, California, continental shelf [More info]: Description of the work and results of a cruise by the Pacific Sea Floor Mapping project to map the Long Beach, California continental shelf based on data from high-resolution multibeam technology.
Data from the Shuttle Radar Topography Mission [More info]: Topographic observations from the SRTM, both original and reprocessed to correct missing and spurious data points.
Datum shifts and digital map coordinate displays [More info]: Online GIS training course for users in GIS environments in resolving the differences in distances and coordinate readouts due to shifts in the 1927 and 1983 North American Datums when using Universal Transverse Mercator (UTM) grids.
Decision-support systems for natural-hazards and land-management issues [More info]: Three mathematical models using information about the geographic distribution and character of land surface characteristics along with proposed modifications or plausible events to determine the likely costs and benefits of actions and events.
Declassified Intelligence Satellite Photographs [More info]: Over 990,000 photos taken from 1959 through 1980 are available for use in studying land surface change. Especially useful because these were taken before Landsat was launched.
Development of a global slope dataset for estimation of landslide occurrence resulting from earthquakes [More info]: Technical description of methods used to generate global slope data from SRTM topography data
Digital Line Graphs (DLGs) [More info]: Description of Digital Line Graphs (DLG) with explanations of layers and feature types, scales, available products, media, prices, and links to search and order webpages.

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