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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
- NASADEM: Creating a New NASA Digital Elevation Model and Associated . . .
MEaSUREs 2012 project focused on providing the scientific and civil communities with a state-of-the-art global DEM from SRTM processing improvements
- 我想下载且只想下载某个省份的DEM数据，该如何下载? - 知乎
SRTM系统获取的雷达影像的数据量约9 8万亿字节，经过两年多的数据处理，制成了数字地形高程模型（DEM），即现在的SRTM地形产品数据。
- 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。
- 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。
- 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
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 Version 3 also features a new global product: the ASTER Water Body Dataset (ASTWBD
- 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
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