digital elevation model data的意思|示意

Digital Elevation Model(DEM) is a digital modeling process which aims at terrain and physiognomy. Irregular triangulation TIN is the best model when DEM data are stored and expressed.

数字地形模型是针对地形地貌的一种数字建模，这种建模的结果通常就是一个数字高程模型（DEM）。

The ASTER team released this image in June 2009 to promote its new global digital elevation model, which remains the most complete and consistent data set of its kind.

这种图片由热发射和反射接受器研究小组（ASTER）在2009年6月发布，旨在推广这种目前保留了最全最准确地球数据的新型地球数据测量模型。

The Principles of the techniques about shaded relief and synthetic stereo-pair viewing of images as well as their application in digital elevation model data processing are described.

说明了实现人工阴影和人工立体观察像对的方法的基本原理及其在处理数字高程模型数据上的应用；

The collected ground true data includes topography map with scale of 1:50 000 and the corresponding Digital Elevation Model (DEM).

收集的地理实况数据包括1：5万的地形图和根据该地形图经数字化处理生成的数字高程模型(dem)。

The method surmounts some shortcomings of using Remote Sensing image Digital Elevation Model, such as the complicated data structure, the slower image formative speed and so on.

它克服了通常作战仿真中采用遥感影像式数字高程模拟方法，数据结构复杂，图形生成速度慢等不足。

Digital Elevation Model (DEM) is an important type of basic data in gi s.

数字高程模型(dem)是地理信息系统的一种基础数据。