Drought Evaluation for Upper Reaches of the Huaihe River
Based on the data of daily precipitation from 1964 to 2000 at six stations in the upper reaches of the Huaihe River and the meteorological data at the neighboring weather stations,the Palmer drought severity index and rainfall anomaly index were calculated,and the results were compared and analyzed.The results show that the durative of droughts and floods grades are rather marked,the occurring frequency of moderate and mild drought is highest in the summer,the occurring frequency of drought is higher in the autumn and winter,and the extreme drought mainly occur in the spring,the north is drier than the south in the upper reaches of the Huaihe river.
upper reach of the Huaihe River,drought evaluationPalmer drought severity indexrainfall anomaly index
NETL
NSTL
万方数据
维普
