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Product Description
Global 30 Arc-Second Elevation Data Set (GTOPO30) is a global raster
Digital Elevation Model (DEM) with a horizontal grid spacing of 30 arc seconds (approximately 1
kilometer). GTOPO30 was derived from a variety of raster and vector
sources.
The data is expressed in geographic coordinates (latitude/longitude) and is referenced to the
World Geodetic Survey (WGS) system of 1984 (WGS84). The files are available in generic binary
(16-bit signed integer) format and are distributed via download.
Additional Information:
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