Digital Elevation/Terrain Model (DEM) | NASA Earthdata
5 days ago · This is a Shuttle Radar Topography Mission (SRTM) hillshade image of the Mount Everest region. SRTM obtained elevation data across nearly 80% of Earth creating the first ever near-global DEM dataset. The data was captured in February 2000 using radar interferometry equipment operating from inside Space Shuttle Endeavour's payload bay.
NASADEM: Creating a New NASA Digital Elevation Model and …
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 commercial and military applications. The current SRTM DEM product is the most intensely downloaded dataset in …
New in CSDA: High Resolution Digital Elevation Models
Dec 7, 2021 · High-resolution Digital Elevation Models (DEM) for non-polar regions at two-meter spatial resolution are now available through NASA’s Commercial SmallSat Data Acquisition (CSDA) program.
GeoTIFF | NASA Earthdata
Sep 14, 2019 · 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.
Create a DEM using Sentinel-1 Data | NASA Earthdata
Dec 3, 2024 · 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.
NASA Shuttle Radar Topography Mission (SRTM) Version 3.0
Mar 1, 2021 · This is the third release in the series providing access to additional NASA SRTM Version 3.0 Global 1 arc second (SRTMGL1) data coinciding with areas released by the USGS. The data are available for download via Earthdata Search and the LP DAAC Data Pool. For further information, contact LP DAAC User Services.
New Version of the ASTER GDEM | NASA Earthdata
Nov 4, 2020 · The first ASTER GDEM was released in 2009, with Version 2 being released in 2011. The ASTER GDEM Version 3 maintains the GeoTIFF format and the same gridding and tile structure as in previous versions, with 30-meter spatial resolution and 1°x1° tiles.
ALOS PALSAR RTC Project | NASA Earthdata
Apr 4, 2025 · The creation of radiometric terrain corrected (RTC) products was a project of the Alaska Satellite Facility to make SAR data accessible to a broader community of users. RTC removes the geometric and radiometric distortions inherent in synthetic aperture radar (SAR) and the corrected PALSAR data are
Access to High-Resolution DEMs | NASA Earthdata
The proposed SNWG-2020 activity would produce and distribute two 2.0 m DEM products: a near-Global Mosaic Earth DEM and DEM strips where new data was acquired for detailed change detection. The Global Mosaic EarthDEM product would be updated annually when new data are acquired. The DEM strips are at locations where Worldview collected stereo ...
PALSAR | NASA Earthdata
Jan 24, 2006 · NASA's PALSAR is a synthetic aperture radar (SAR) that actively emits microwave signals and receives the reflection from the ground to acquire information.