Detailed study of information such as measurements, counts, and computations as a function of geographical location.
SAGEMAP: a web-based spatial dataset for sage grouse and sagebrush steppe management in the Intermountain West [ More info] Links to fact sheet describing the database of spatial information on sage grouse and sagebrush habitats.
SPARROW Modeling of Surface-Water Quality [ More info] A software model for regional interpretation of water-quality monitoring data, estimating origin and fate of contaminants in streams, with documentation, publications and data for the applications.
San Francisco Bay bathymetry web site [ More info] Provides location-depth grids of bathymetry available for San Francisco Bay and tools for examining those grids. Data provided as GIS grids and animations.
Spatial Analysis Branch, National Wetlands Research Center [ More info] Home page for National Wetlands Research Center's (NWRC) Spatial Analysis Branch (SAB), which uses state-of-the-art technology to assist the work of natural resource managers with spatial data and computerized analysis techniques.
The National Land Cover Database [ More info] The National Land Cover Database (NLCD) serves as the definitive Landsat-based, 30-meter resolution, land cover database for the Nation.
The National Map [ More info] Homepage describing The National Map, which will produce a seamless, continuously maintained set of public domain geographic base information, with links to map viewer, pilot projects, reports, fact sheets, and national atlas.
Use of Light Detection and Ranging (LiDAR) to Obtain High-Resolution Elevation Data for Sussex County, Delaware [ More info] Methods and techniques used to collect and process LiDAR elevation data, the generation of the digital elevation model (DEM) and the 2-foot contours, and the quality-assurance procedures and results.
Western Geographic Science Center [ More info] USGS geographic information studies and data for the western United States.
Alphabetical Index of Topics
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