摘要
利用福建漳州和东山站资料采用回归订正方法插补厦门站缺测资料,分析研究了厦门1893-2005年间年、季降水量变化趋势、旱涝时段、变化周期、降水量气候变率长期变化、降水量异常发生频率及降水量突变点.结果表明:近113a厦门年、夏季降水量呈增加趋势.1893-1902年和1948-1971年为少雨时段,1931-1947年和1983-2005年为多雨时段.年降水量存在着7-8a、60-65a和17a左右的振荡周期.年降水量和夏季降水量在1903-1931年这一时段年际变化较剧烈.秋季是各季降水中气候变率最大的季节.1951-1960年、1901-1910年和1990-2000年是降水量异常事件的频发期.年降水量在1971-1972年和1982-1983年、春季降水量在1942-1943年和1972-1973年、夏季降水量在1987-1988年、秋季降水量在1972-1973年时段都发生了突变.
The scarcity of observation data over Xiamen areas were reinforced using the data of Zhang zhou and Dongshan. Then the annual and seasonal precipitation trend, dryness and wetness phase, variation period, secular change of precipitation under climatic change, frequency of precipitation anomaly and catastrophic point of precipitation over Xiamen were analyzed from 1893 to 2005. It showed that： （ 1 ）The annual and summer precipitation of Xiamen had increased in recent l13a. （2） It was rainless in 1893 -1902 and 1948 - 1971 while rainy in 1931 -1947 and 1983 -2005. （3） The annual precipitation had oscillation periods of 7 - 8a, 60 -65a and 17a. （4） The inter-annual change of annual and summer precipitation were acute in 1903 - 1931. （5）The climate variability of autumn precipitation was the highest among 4 seasons. （6） The precipitation anomaly events occurred frequently in 1951 - 1960, 1901 - 1910 and 1990 - 2000. （7） The annual precipitation over 1971 - 1972 and 1982 - 1983, spring precipitation over 1942 - 1943 and 1972 - 1973, summer precipitation over 1987 - 1988 and autumn precipitation over 1972 - 1973 had catastrophe occurrences.
出处
《台湾海峡》
CAS
CSCD
北大核心
2007年第1期17-25,共9页
Journal of Oceanography In Taiwan Strait
基金
福建省气象局开放式基金资助项目(k200601)
关键词
气候学
降水量变化
统计分析
小波分析
异常
突变
climatology
precipitation variation
statistical analysis
wavelet transform
anomalous
