Satellite technology has revolutionized the way we acquire terrestrial surface data. Such remotely sensed terrestrial data have made it possible to generate digital elevation models (DEMs) at multiple spatial and temporal scales by exploiting stereographic, interferometric, radargrammetric, and lidar principles [1]-[10]. Schemes adapted to generate DEMs are hugely successful, and, as such, DEM generation is considered an engineering marvel. In turn, the availability of DEMs to the geoscientific community is a blessing.

中文翻译：

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数字高程模型：地球科学家的重要数据来源 [教育]


卫星技术彻底改变了我们获取地面数据的方式。此类遥感地面数据使得通过利用立体测量、干涉测量、雷达测量和激光雷达原理来生成多个空间和时间尺度的数字高程模型（DEM）成为可能[1]-[10]。用于生成 DEM 的方案取得了巨大成功，因此 DEM 生成被认为是工程奇迹。反过来，DEM 对地球科学界来说是一件幸事。