The ETOPO Global Relief Model integrates topography, bathymetry, and shoreline data from regional and global datasets to enable comprehensive, high resolution renderings of geophysical characteristics of the earth’s surface. The model is designed to support tsunami forecasting, modeling, and warning, as well as ocean circulation modeling and Earth visualization. The current version, ETOPO 2022, is available in Ice Surface and Bedrock versions that portray either the top layer of the ice sheets covering Greenland and Antarctica, or the bedrock below. For more information, email firstname.lastname@example.org.
Current Version: ETOPO 2022
Use the Grid Extract interactive map to create and download spatial subsets of data from the Ice surface and Bedrock versions of ETOPO 2022.
ETOPO1 is available in Ice Surface and Bedrock versions that portray either the top layer of the ice sheets covering Greenland and Antarctica, or the bedrock below.
|ETOPO 1 Datasets | Metadata
Amante, C. and B.W. Eakins, 2009. ETOPO1 1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis. NOAA Technical Memorandum NESDIS NGDC-24. National Geophysical Data Center, NOAA. doi:10.7289/V5C8276M [access date]
- Data Sources
- Frequently Asked Questions
- Hypsographic Curve of the Earth's Surface from ETOPO1
- Product Details
- World Ocean Volumes
The 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
For help and information on the data format and how to import, see Ch. 11 in the project report. (Begins on Page 88)
Source 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 Data
Many 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.
Full global coverage, no copyright or security distribution restrictions
Contains higher quality copyrighted data in areas where it was licensed, available, and necessary