泰山暴雨气候统计特征

The Climatological Statistical Features of Heavy Rain in Mount Tai

笔者依据1954～1998年泰山气象站有关暴雨观测记录资料进行了较为详细的统计，其结果是：45年内共出现日雨量≥50mm暴雨日共222个，平均每年4．9个，最多年为12个，年平均暴雨口量为79．2mm。1989年全年未出现暴雨，为历年罕见。暴雨日最早出现在4月7日，最晚出现在10月29日。其中日雨量≥100mm的大暴雨日有44个，平均每年1个，最多年为4个，出现在1994年；≥200mm特大暴雨日只有1次，出现在1958年6月30日，日量为201．8mm。本文还对山上、山下（泰安）季、年、月、日暴雨变化规律进行了比较统计，为深入研究泰山暴雨变化规律提供了重要的基础资料。

The author carries out detailed statistics according to the relevant rainstorm observationrecord data from 1954 to 1998 of the Meteorological Station of Taishan. The result is as follows: thereare 222 rainstorm days altogether whose rainfall≥50mm within 45 years; the average is 4. 9 days everyyear; the maximum is 12 days one year; the average rainstorm rainfall per day is 79. 2mm everyyear.There was no rainstorm in the whole ycar of 1989 which was rare over the years .The earliest rainstormappears on April, 7 and the 1atest on October, 29. Therc are 44 Iarge rainstorIn days≥100mm per day;the average is one day a year; the maxirnum is 4 days one ycar,showing up 1994,There is one particularlarge rainstorm day ,showing up on June. 30, 1958. The rainfall is 201. 8mm per day. The author also carries out comparative statistics on the rainfall changing regularities of season, year. month,day up anddown Mount Tai and supplies important data for further shudying on the rainstorm changing regularityof Mount Tai.