New Version of the ASTER GDEM - Earthdata
2020年11月4日 · 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). The ASTER GDEM covers land surfaces between 83°N and 83°S, and was produced through automated processing of 2.3 …
SRTM | NASA Earthdata
2000年2月11日 · The SRTM payload consisted of two radar antennas, one located in the shuttle's payload bay and the other installed on the end of a 200-foot mast that extended from the payload bay. Each SRTM radar assembly contained two types of antenna panels: C-band and X-band. C-band radar data were used to create near-global topographic maps of Earth called Digital …
NASADEM: Creating a New NASA Digital Elevation Model and
Canadian Digital Elevation Data produced by Natural Resources Canada We propose a significant modernization of the publicly- and freely-available DEM data. Accurate surface elevation information is a critical component in scientific research and …
New in CSDA: High Resolution Digital Elevation Models - Earthdata
2021年12月7日 · The digital elevation models, or DEMs, are the first data released as part of the EarthDEM Project, a collaboration between PGC, the Byrd Polar Research Center at The Ohio State University, the National Center for Supercomputing Applications at the University of Illinois, and government partners to produce high-resolution terrain maps for ...
NASA Shuttle Radar Topography Mission (SRTM) Version 3.0 …
Version 3.0 SRTM Global 1 arc second product is void-filled using elevation data from Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Digital Elevation Model 2 (GDEM2), USGS Global Multi-resolution Terrain Elevation Data (GMTED) 2010, and USGS National Elevation Dataset (NED).
Create a DEM using Sentinel-1 Data - Earthdata
2024年12月3日 · This recipe from NASA's Alaska Satellite Facility guides you through creating a Digital Elevation Model (DEM) from two Sentinel-1 SLC scenes. Follow the steps: create an interferogram, perform phase unwrapping, and generate the DEM.
Digital Elevation/Terrain Model (DEM) News - Earthdata
2021年3月1日 · NASA's data for digital elevation models (DEM) comes from airborne and space-based sources and are useful for analyzing a majority of Earth's terrain.
Altimeter Corrected Elevations, Version 2 (ACE2) - Earthdata
The Altimeter Corrected Elevations, Version 2 (ACE2) data set, is the Global Digital Elevation Model (GDEM) created by using multi-mission Satellite Radar Altimetry with the Shuttle Radar Topography Mission (SRTM). It was created by synergistically merging the SRTM data set with Satellite Radar Altimetry within the region bounded by 60�N and 60�S. Over the areas …
Digital Elevation/Terrain Model (DEM) - Earthdata
1997年3月9日 · A digital model or 3D representation of a terrain's surface created from terrain elevation data.
The Digital Elevation Model (DEM) file in the ALOS PALSAR Terrain Corrected product package is not generated from the PALSAR data. It is a copy of an existing DEM modified and used for the radiometric terrain correction process.