Affiliation:
1. China Electric Power Research Institute
Abstract
This paper researches the influence rule of unit size on relief amplitude by analyzing relief amplitudes under various statistical units and determines the optimum statistical unit in study area-Chongqing using the correlation between different statistical data. The results show that relief amplitude increased with increasing area of statistical unit, but increasing rate finally becomes stable. When determining the optimum unit using artificial drawing method, the point maintains stable can be found. The optimum unit area is 4km2 of SRTM-DEM data in study area.
Publisher
Trans Tech Publications, Ltd.
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