Research on drought assessment model based on three dimensional characteristic variables of “drought intensity-duration-loss”
Xiangyu LI , Tianjie LEI , Zhitao LIN , Junhong JI , Hui SUN , Qinghua WU , Jiabao WANG , Dongpan CHEN
Water Resources and Hydropower Engineering ›› 2025, Vol. 56 ›› Issue (S1) : 213 -220.
In order to study the quantitative relationship between drought loss of affected population and drought intensity and duration in Inner Mongolia. Based on the survey data and the Comprehensive Drought Index(CDI), the sample data of the affected population was obtained in Inner Mongolia. Based on the characteristic factors of drought intensity and duration, the correlation between the affected population and drought intensity and duration was analyzed, and the drought evaluation method and 3D model based on the 3D characteristic variables of drought intensity-duration-loss were constructed. The result showed that the affected population was determined by drought intensity, duration and other characteristic factors. The affected population was significantly correlated with drought intensity and duration, drought intensity and duration also have significant interaction. And the response relationship between the affected population and drought intensity and duration tended to be nonlinear.
drought / drought losses / drought intensity / duration / drought assessment
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