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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)
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
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
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。
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
Shuttle Radar Topography Mission (SRTM) | NASA Earthdata The Shuttle Radar Topography Mission (SRTM) payload flew aboard the Space Shuttle Endeavour during the STS-99 mission SRTM collected topographic data over nearly 80% of Earth's land surfaces, creating the first-ever near-global dataset of land elevations
海运中的滞期费 DEM 和滞留费 DET 分别是什么意思？ - 知乎 1、DEM（DEMURRAGE CHARGES）：滞期费 2、DET（Detention Charge）：拘留费 国贸程租业务中滞期费，就必然涉及买卖舍约。 法院认为滞期费是因租船人不能在合同规定的装卸时间内完成装卸货的违约行为而由租船人支付的损害赔偿。 在实务中，速遣费通常为滞期费的一半。