本文介绍了地形指数的物理基础及其与土壤水分的关系。
In this paper, the physical basis of the index and its relationships with soil water storage are introduced.
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。
We must calculate their topographic indices in order to get their topographic index frequency distributions.
产流计算考虑到地形坡度的影响采用基于地形指数的计算方法。
The topography index method taking into consideration the effects of topography is used to calculate water yield.
地形指数空间变异特征分析可为研究流域地形和流域水文相似性提供基础资料。
The analysis of the topographic index variance can help us study catchment topography and hydrological similarity.
这种地形指数新算法的提出对于流域水文过程机理分析及陆面过程定量化研究具有一定的现实意义。
The new algorithm proposed in this paper will be useful to a certain extent to analyze watershed hydrological processes and quantify the land surface processes.
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。
The former bases on the hillslope hydrology and puts emphasis on the effects of terrain which denoted with topographic index for each grid.
利用DTM最重要的是保证它的真实性， DTM精度是指数字地面模型与实际地形表面的逼近程度。
The most important thing making use of DTM is to guarantee validity; the accuracy of DTM is degree of approximation of DTM'surface and actual terrain surface.
利用DTM最重要的是保证它的真实性， DTM精度是指数字地面模型与实际地形表面的逼近程度。
The most important thing making use of DTM is to guarantee validity; the accuracy of DTM is degree of approximation of DTM'surface and actual terrain surface.
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