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- Digital Elevation Terrain Model (DEM) | NASA Earthdata
A digital elevation model (DEM) is a three-dimensional graphic of the "bare earth" surface of land shown without trees, buildings or other objects DEMs can be created using traditional topographic maps, modern light detection and ranging (LIDAR) data and other sources gathered by airborne and space-based instruments NASA's DEM data, such as files collected by the Space Shuttle Radar
- ASTER Global Digital Elevation Model V003 | NASA Earthdata
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)
- NASADEM: Creating a New NASA Digital Elevation Model and Associated . . .
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
- Create a DEM using Sentinel-1 Data - NASA Earthdata
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
- 到底什么是DEM？如何获取该数据？ - 知乎
DEM，Digital Elevation Model，DEM，数字高程模型，是描述地表起伏形态特征的空间数据模型，目前可以免费下载到的全球DEM数据主要有SRTM、HGTNASA、AW3D30、TanDEM-X DEM等。
- New in CSDA: High Resolution Digital Elevation Models
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
- New Version of the ASTER GDEM | NASA Earthdata
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 million scenes from the ASTER archive
- 我想下载且只想下载某个省份的DEM数据，该如何下载? - 知乎
插值算法来自于Reuter et al （2007） 这里我以SRTMDEM 90M 分辨率原始高程数据下载为例，选择以行政区来进行数据下载 然后点击检索，可以看到江西省需要五副DEM影像才能完整覆盖，那么把列表显示的五个数据下载下来就好了。
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