Abstract
Based on Palmer Drought Severity Index (PDSI), this paper analysed the spatial distribution of dry-wet condition in the Zhujiang River Basin in 1961-2015, and studied the dry-wet climatic regionalization by Rotated Empirical Orthogonal Function (REOF). The results show most areas in the Zhujiang River Basin was in normal state of dry-wet condition and the whole basin can be divided into 7 dry-wet climate zones. The above conclusions reflect the dry-wet characteristics in the basin reasonably, which can provide a reference on prediction, monitoring and evaluation of some kinds of extreme climatic disasters such as floods and droughts inextricably linked with dry-wet condition.
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