SRTM | NASA Earthdata
2000年2月11日 · 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 Elevation Models (DEMs). Data from the X-band radar were used to create slightly higher resolution DEMs but without the global coverage of the C-band radar.
NASADEM: Creating a New NASA Digital Elevation Model and …
Our objective is to provide the scientific and civil communities with a state-of-the-art global digital elevation model (DEM) derived from a combination of Shuttle Radar Topography Mission processing improvements, elevation control, void-filling and merging with data unavailable at the time of the original SRTM production:
New Version of the ASTER GDEM | NASA Earthdata
2024年12月9日 · Version 3 of the Advanced Spaceborne Thermal Emission and Reflection Radiometer Global Digital Elevation Model is now available from NASA’s Land Processes Distributed Active Archive Center . The ASTER GDEM covers land surfaces between 83°N and 83°S, and was produced through automated processing of 2.3 million scenes from the ASTER …
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. Definition source: Wiki.GIS
Radiometrically Terrain-Correct (RTC) Sentinel-1 Data Using …
2024年10月31日 · Digital Elevation Model (DEM) (available from many sources, including USGS Earth Explorer and OpenTopography; choose projection in meters) GAMMA software package (MSP + ISP + DIF&GEO + LAT). Note: GAMMA requires purchase, a significant expense. GDAL warp (part of GDAL Utilities)
Tearing Down Technical Barriers | NASA Earthdata
2023年6月15日 · The product is distributed in Cloud Optimized GeoTIFF (COG) format as a set of 10 files, including water classification, classification confidence, land cover classification, terrain shadow, cloud/cloud-shadow classification, digital elevation model …
Terrain-Correct CEOS Data | NASA Earthdata
2024年10月18日 · At the top of the interface, select the General tab under Select Processing Steps, click Terrain Correct (with Digital Elevation Model), Geocode to a Map Projection, and Export to a Graphics File Format. Select the Terrain Correction tab, click on Browse next to the DEM File field, navigate to your working directory, and open your downloaded ...
RIVA overlays images on a base map. Remote sensing images can be mosaicked with a digital elevation model, offering a data package which provides a realistic, three dimensional view, incorporating multiple data set information. Easily manipulating varied formats and resolutions, RIVA renders global projections by compiling
GeoTIFF | NASA Earthdata
2019年9月14日 · However, there is continued interest and demand for the GeoTIFF file format, mostly as a distribution format for satellite or aerial photography imagery and for other kinds of data such as Digital Elevation Model (DEM) data and Digital Ortho Quadrangle data. Status. OGC GeoTIFF 1.1 is an approved NASA Earth Science Data Systems standard.
VIIRS/NPP Day/Night Band Moderate Resolution Terrain …
2021年11月1日 · A digital terrain model is used to model the Earth's surface. The main inputs are the spacecraft attitude and orbit ephemeris data, the instrument telemetry and the digital elevation model.