Abstract
Interpolation is a model to estimate value of an unknown point with a set of known points. In order to get the value of the soil erosion with high precision, it is necessary to develop a high precision soil erosion interpolation method. The paper introduces an interpolation method based on Flexible Factor, called Flexible Factor Based Inverse Distance Weighting (FFBIDW) and two popular classic interpolation methods called Ordinary Kriging (OK) and Inverse Distance Weighting (IDW). Considering the precipitation’s effect to the soil erosion, FFBIDW has more accurate result. FFBIDW will be checked by a series of experiments with Yunnan’s soil erosion data and have a compare to OK and IDW using RMSE. The test results demonstrate FFBIDW’s correctness and feasibility.
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