ASTER GDEM coverage spans from 83 degrees north latitude to 83 degrees south, encompassing 99 percent of Earth's landmass. The improved GDEM V3 adds additional stereo-pairs, improving coverage and reducing the occurrence of artifacts.

Nov 4, 2020 · Version 3 of the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Digital Elevation Model (GDEM) is now available from NASA’s Land Processes Distributed Active Archive Center (LP DAAC).

1．Click button and move the cursor to your download area. 2．Select the area by dragging from the upper left to lower right on the map. Selected tiles in the area will be highlighted in yellow. 3．Selected tiles can be download using the button.

The ASTER Global Digital Elevation Model (GDEM) Version 3 (ASTGTM) provides a global digital elevation model (DEM) of land areas on Earth at a spatial resolution of 1 arc second (approximately 30 meter horizontal posting at the equator).The development of the ASTER GDEM data products is a collaborative effort between National Aeronautics and Space Administration (NASA) and Japan’s Ministry ...

The ASTER GDEM covers land surfaces between 83°N and 83°S and is comprised of 22,702 tiles. Tiles that contain at least 0.01% land area are included. The ASTER GDEM is distributed as Geographic Tagged Image File Format (GeoTIFF) files with geographic coordinates (latitude, longitude). The data are posted on a 1 arc-second (approximately 30 ...

ASTER provides a Global Digital Elevation Model (GDEM) of Earth's land surface at approximately 30-meter spatial resolution. ASTER GDEM is available for download on Earthdata Search.

Jun 29, 2009 · NASA and Japan's Ministry of Economy, Trade and Industry (METI) released the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Digital Elevation Model (GDEM) to the worldwide public on June 29, 2009.

The Terra Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Digital Elevation Model (GDEM) Version 3 (ASTGTM) provides a global digital elevation model (DEM) of land areas on Earth at a spatial resolution of 1 arc second (approximately 30 meter horizontal posting at the equator).

ASTER GDEM coverage spans from 83 degrees north latitude to 83 degrees south, encompassing 99 percent of Earth's landmass. The improved GDEM V3 adds additional stereo-pairs, improving coverage and reducing the occurrence of artifacts.

The GDEM was created by stereo-correlating the 1.3 million scene ASTER VNIR archive, covering the EarthÔÇÖs land surface between 83N and 83S latitudes. The GDEM is produced with 30 meter postings, and is formatted in 23,000 1 x 1 degree tiles as GeoTIFF files.