GTOPO30 dataset information page
|GTOPO30 global digital elevation model|
Statement: GTOPO30 is a global digital elevation model with a horizontal resolution of 30 arc seconds.
Abstract: GTOPO30 is a global digital elevation model (DEM) with a horizontal grid spacing of 30 arc seconds (approximately 1 kilometer). GTOPO30 was derived from several raster and vector sources of topographic information.
|Data resolution:||30 arc second (~1km)|
|Datum:||The reference ellipsoid/datum is WGS84|
Spatial data coverage: Global
Temporal data coverage: Time snap shot
Time period covered: completed in 1996