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dem    
n. demodulator的简写

demodulator的简写


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  • Digital Elevation Terrain Model (DEM) | NASA Earthdata
    NASA's data for digital elevation models (DEM) comes from airborne and space-based sources and are useful for analyzing a majority of Earth's terrain
  • 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
  • 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。
  • ASTER Global Digital Elevation Model V003 - NASA Earthdata
    Description 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)
  • 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
  • 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
  • NASADEM Merged DEM Global 1 arc second V001 - Earthdata
    Description The Land Processes Distributed Active Archive Center (LP DAAC) is responsible for the archive and distribution of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Digital Elevation Model (DEM) version 1 (NASADEM_HGT) dataset, which provides global elevation data at 1 arc second spacing
  • arcgis中dem这个配色展示怎么做？ - 知乎
    这个就是DEM叠加色彩，调整透明度等产生的效果。具体制作这么一张图，最主要的还是要有相应的数据和相应的思想。缺一不可，至于如何利用ArcGis软件来制作这么一张DEM叠加色彩透视图其实是相对比较简单的。 如图1-1至1-4所示，不同的叠加变换和透明度调整，会产生不同的效果。 图1-1：
  • New in CSDA: High Resolution Digital Elevation Models - Earthdata
    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





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