The CGDI Data Alignment Layer (CDAL) is a base of reliable georeferenced points available to geospatial data users for data correction. The CDAL points also enable users to simultaneously display data from various sources as well as data produced at… Read more.
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The LandScan data set is a worldwide population databasecompiled on a 30in X 30in latitude/longitude grid. Census counts(mainly at sub-national level) were apportioned to each gridcell based on probability coefficients, which are based onproximity… Read more.
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Canada3D is a digital elevation model (DEM) produced by the Canadian Forestry Service, Ontario region. The DEM consists of an ordered array of ground elevations providing coverage of the entire Canadian landmass. It has been derived from the cells… Read more.
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comprehensive road network file; roads, streets, etc.
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comprehensive road network file; roads, streets, etc.
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EcoMAP (Ecological Mapping Analysis and Protocols) is a suite of geospatial data sets and analysis applications which has been developed by GeoInsight Corporation and A.M. Turner and Associates over the past three years with support from a number of… Read more.
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In support of military applications, the National Imagery and Mapping Agency (NIMA) has developed standard digital datasets (Digital Terrain Elevation Data (DTED) which is a uniform matrix of terrain elevation values which provides basic… Read more.