1991年梅雨期内一次连续6天的成灾暴雨过程诊断

DIAGNOSIS OF A DISASTROUS HEAVY-RAIN SUSTANING 6 DAYS DURING THE MEI-YU PERIOD IN 1991

采用信息化降水场和格点场资料,对1991年梅雨期内一次连续6d的成灾暴雨进行了成因诊断,得出该过程成云致雨的各种物理条件与一般暴雨相同和相异之处,由理论计算求得的可能降水量和实测雨量值之间的一致性,证实该诊断结论是正确的。

In this paper, the cause of a disastrous heavy—rain sustaining 6 days during the Mei-yu period in 1991 has been diagnosed, by using the data processing of precipitation and grid points. So we have obtained the similarities and the differences between physical conditions which resulted in cloud and rain, the disastrous heavy-rain and those of a general heavy-rain. And the concordance between the potential precipitation given by the theoretical calcuation and the actual observed values has proven that the diagnostic conclusions are correct.