NOAA National Centers for Environmental Information. 2022: ETOPO 2022 15 Arc-Second Global Relief Model. NOAA National Centers for Environmental Information. DOI: 10.25921/fd45-gt74. Accessed [date].
Older VersionsThe Global Land One-kilometer Base Elevation (GLOBE) dataset is a global digital elevation model (DEM) with 30 arc-second (30") grid resolution. It was the first publicly available, high resolution DEM to cover more than two-thirds of the earth’s surface, though copyrighted or limited distribution products like NIMA predated it. GLOBE data comes from 11 sources, via 18 combinations of source/lineage processing. Scientists compiled DEMs available at griddings of 1-km or smaller, adding or making the best available grids for other areas to complete global coverage of land areas. Organizations from around the world contributed in some way to source data or post-source processing and quality control that ultimately found their way into GLOBE.
Data by Tile CitationCite as: National Geophysical Data Center, 1999. Global Land One-kilometer Base Elevation (GLOBE) v.1. Hastings, D. and P.K. Dunbar. National Geophysical Data Center, NOAA. doi:10.7289/V52R3PMS [access date].
Additional Data Documentation SourcesSource data — including satellite imagery, aerial photography, satellite altimetry, cadastral survey data, and digitized topographic maps— were converted to 16-bit binary raster grids through stereo-profiling, image pattern recognition, contour-to-grid, point-to-grid surface generation, and a variety of other techniques.
Selection of GLOBE DataMany areas multiple candidate datasets, which were compared before final selection and mosaicked into the full global DEM. The CEOS GLOBE Task Team and IGBP-DIS. The final product received peer review on four continents.
Versions UnrestrictedFull global coverage, no copyright or security distribution restrictions
RestrictedContains higher quality copyrighted data in areas where it was licensed, available, and necessary
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