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, 2:S16

First Online: 11 December 2013


Rainfall erosivity factor R is one of the most commonly used factors in soil erosion models. While rainfall energy E is the most elementary physical parameter to predict R. Based on comparative analysis of previous soil erosion models and rainfall erosivity factor measuring methods, integrated application of modern photogrammetric techniques, image analytic methods and automatic control theories, this paper provided a new method based on image analytic to calculate the rainfall energy and R factor, which obtains raindrop-s volume and velocity by means of modern photogrammetric technique. Results show that this method can improve both efficiency and accuracy of rainfall energy calculation and other rainfall physical parameters measurement.

KeywordsRainfall erosivity factor R Raindrop energy E physical parameters of raindrop photogrammetric measurement  Download fulltext PDF

Autor: Minghang Guo - Jinshi Jian - Zhun Zhao - Juying Jiao


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