CAJ | 학술논문

利用中国国家气象信息中心提供的华南89个代表站1969-2008年逐日降水资料，对华南后汛期（7-月）极端降水时空演变特征进行研究。结果表明：多年平均总降水量、强降水量、降水频率、强降水频率以及暴雨频率与强降水量阈值空间分布一致，广东和广西的南部及福建西南部为大值区；强降水量、降水频率及暴雨频率很大程度影响着华南后汛期总降水量的空间分布。强降水量、强降水频率、暴雨频率对后汛期总降水量的时间变化有很好的指示意义。华南后汛期极端降水在1992--1993年发生一次明显的年代际转折，1993年以来各指标的均值（除降水频率外）和方差均显著增加，华南发生极端旱涝的情况增多。另外，转折前后两个时段的总降水量、降水频率均呈减小趋势，但减小显著的区域有一定差异。
이용중국국가기상신식중심제공적화남89개대표참1969-2008년축일강수자료，대화남후신기（7-월）겁단강수시공연변특정진행연구。결과표명：다년평균총강수량、강강수량、강수빈솔、강강수빈솔이급폭우빈솔여강강수량역치공간분포일치，엄동화엄서적남부급복건서남부위대치구；강강수량、강수빈솔급폭우빈솔흔대정도영향착화남후신기총강수량적공간분포。강강수량、강강수빈솔、폭우빈솔대후신기총강수량적시간변화유흔호적지시의의。화남후신기겁단강수재1992--1993년발생일차명현적년대제전절，1993년이래각지표적균치（제강수빈솔외）화방차균현저증가，화남발생겁단한로적정황증다。령외，전절전후량개시단적총강수량、강수빈솔균정감소추세，단감소현저적구역유일정차이。
Daily precipitation data of 89 stations in South China from 1969 to 2008 ,provided by the China National Meteorological Information Center, are used to investigate the spatial and temporal fea- tures of the extreme precipitation during the post-flood season (July--September) in South China. Re- sults show that: 1 ) The spatial distributions of the cipitation amount, precipitation frequency, heavy average annual total precipitation amount, heavy pre- precipitation frequency and rainstorm frequency are basically in agreement with that of the extreme precipitation threshold during the post-flood season in South China, with larger values in the south of Guangdong and Guangxi, and the southwest of Fujian. Heavy precipitation amount,precipitation frequency and rainstorm frequency have a great influence on the spatial distribution of the total precipitation. Heavy precipitation amount, heavy precipitation fre- quency and rainstorm frequency have implications for the temporal variation of total precipitation. 2 ) The regional averaged extreme precipitation of South China during the post-flood season shows an obvi- ous interdecadal change around 1992, and the remarkable increase takes place for the mean values and variance of all the indices except for precipitation frequency, indicating that the drought and flood disasters have increased since 1993. In addition, the total precipitation and precipitation frequency decrease in the two stages(before 1992 and after 1993 ) ,with some differences for the notable decreasing regions.