Based on remote sensing technology the GIS grid model generated by digital elevation model (DEM) is utilized to analyze the flood submergence.
在遥感与GIS技术的基础上,应用数字高程模型(DEM)生成的格网模型进行洪水的淹没分析。
This paper discusses the methods of automatic extraction of digital elevation model (DEM) from remote sensing image. A system of scheme is established to extract DEM from SPOT image.
本文研究了利用航天遥感影像自动提取数字高程模型(DEM)的方法技术,建立了一整套利用SPOT影像提取DEM的方案。
The remote sensing datum, map datum, photo datum, document datum, DEM, and meta-data are included in the database.
数据库包括地图数据、遥感影像数据、文档数据、照片数据、数字高程模型以及各类数据的元数据信息。
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