topographic index

基本解释

Data quality controlling is a important index for topographic digital map.
数据质量控制是良好的数字地形图质量的重要保证。
We must calculate their topographic indices in order to get their topographic index frequency distributions.
为了得到它们的地形指数频率分布，需计算它们的地形指数。
The former bases on the hillslope hydrology and puts emphasis on the effects of terrain which denoted with topographic index for each grid.
径流生成模块以山坡水文学理论为基础，重点考虑流域地形的影响，分单元引入地形指数进行产流计算。

地形指数
With the aid of GIS, we computed spatial distributing of topographic index and grade in Wenzhou.
借助地理信息系统技术，本文计算了温州地区的地形指数及坡度的分布。
水利工程
地形指数
The methods of extracting basin network and topographic index from DEM were discussed.
介绍并初步讨论了由DEM提取流域河网及地形指数的方法。