| 1959-2019年开平市雨日的气候特征 |
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| 引用本文： | 刘俭彤,王成,吴钩.1959-2019年开平市雨日的气候特征[J].广东气象,2021,43(1). |
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| 作者姓名： | 刘俭彤 王成 吴钩 |
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| 作者单位： | 开平市气象局,广东开平529300 |
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| 基金项目： | 江门市气象局课题(编号:201708)。 |
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| 摘 要： | 根据开平国家站1959—2019年的逐日降雨资料,利用气候倾向率、统计分析、突变检验、小波分析等方法,对开平市雨日的气候特征和突变转折进行分析。研究表明:1959—2019年开平市的总雨日和小雨日都呈现比较明显的减少趋势,其中1987年是雨日急剧减少的突变年;开平市雨日逐月变化呈双峰型分布,峰值主要集中在汛期;开平的雨日变化包含着4~6、8~17和13~20年的振荡周期。
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| 关 键 词： | 气候学 雨日特征 突变检验 开平市 |
Analysis of Climatological Characteristics of Rain Days in Kaiping from 1959 to 2019 |
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| LIU Jian-tong,WANG Cheng,WU Gou.Analysis of Climatological Characteristics of Rain Days in Kaiping from 1959 to 2019[J].Journal of Guangdong Meteorology,2021,43(1). |
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| Authors: | LIU Jian-tong WANG Cheng WU Gou |
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| Institution: | (Meteorological Bureau of Kaiping,Kaiping 529300) |
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| Abstract: | With the daily rain data of a national station in Kaiping from 1959 to 2019 and the methods of climate tendency rate,statistical analysis,abrupt change test and wavelet analysis,this work analyzes the climatological characteristics of rain days in the city and their abrupt changes and turns.The result is as follows.Both the total rain days and total light rain days show a significantly decreasing trend and 1987 is the year in which rain days decreased abruptly.In Kaiping,monthly variations of rain days are bimodal with rain peaks mainly in raining seasons.The variation of rain days oscillates at periods of 4 to 6,8 to 17 and 13 to 20 years. |
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| Keywords: | climatology characteristics of rain days abrupt change test Kaiping city |
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