[1]曾钦文,谢俊驹,巫燕辉,等.东江中上游流域降水及暴雨日的气候变化特征[J].水土保持研究,2019,26(05):129-136.
　ZENG Qinwen,XIE Junju,WU Yanhui,et al.Characteristics of Climate Change of Precipitation and Rainstorm Days in the Middle and Upper Reaches of the Dongjiang River[J].Research of Soil and Water Conservation,2019,26(05):129-136.
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东江中上游流域降水及暴雨日的气候变化特征

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 26 期数: 2019年05期 页码: 129-136 栏目: 出版日期: 2019-09-06
Title:
Characteristics of Climate Change of Precipitation and Rainstorm Days in the Middle and Upper Reaches of the Dongjiang River
作者:
曾钦文1,2, 谢俊驹1,4, 巫燕辉3, 李思玲2
1. 成都信息工程大学, 成都 610225;
2. 龙川县气象局, 广东 龙川 517300;
3. 河源市气象局, 广东 河源 517000;
4. 连平县气象局, 广东 连平 517100
Author(s):
ZENG Qinwen1,2, XIE Junju1,4, WU Yanhui3, LI Siling2
1. Chengdu University of Information Technology, Chengdu 610225, China;
2. Longchuan Meteorological Bureau of Guangdong Province, Longchuan, Guangdong 517300, China;
3. Heyuan Meteorological Bureau of Guangdong Province, Heyuan, Guangdong 517000, China;
4. lianping Meteorological Bureau of Guangdong Province, Lianping, Guangdong 517100, China
关键词:
降水量; 暴雨日数; 东江中上游; 气候变化; 时空特征
Keywords:
precipitation; rainstorm days; middle and upper reaches of Dongjiang River; climate change; temporal and spatial characteristics
分类号:
P467
摘要:
利用1965—2017年东江中上游8个国家气象站的逐日降水量和暴雨日数资料，运用线性趋势法、相关分析法、Mann-Kendall突变检验、滑动t检验、Morlet小波分析等方法，分析了东江中上游降水量和暴雨日数的时空变化特征。结果表明：东江中上游年、汛期、前汛期降水量和暴雨日数呈不显著减少趋势，年、后汛期降水量和暴雨日数呈不显著增加趋势；年、汛期、前（后）汛期降水量和暴雨日数空间上呈西南多东北少的分布特征；汛期为降水量和暴雨发生的集中时段，且前汛期多、后汛期少；汛期降水在1972年、1986年、2007年发生突变，前汛期降水在1971年、2005年发生突变，后汛期降水未发生突变；汛期暴雨日数在2003年、2008年前后发生突变，前汛期暴雨日数在1972年、2004年前后发生突变，后汛期暴雨日数在2011年前后发生突变；年降水量存在2 a，4～5 a，8～10 a的振荡周期，年暴雨日数存在2～4 a，5～6 a，8～10 a震荡周期，与年降水量周期有很好的对应性。
Abstract:
Based on the daily precipitation and rainstorm days of eight national meteorological stations in the middle and upper reaches of the Dongjiang River from 1965 to 2017, linear trend method, correlation analysis method, Mann-Kendall mutation test, sliding t test, Morlet wavelet analysis were used to analyze the time and space characteristics of precipitation and rainstorm days in the middle and upper reaches of the Dongjiang River. The results show that the precipitation and rainstorm days in the middle, upper flood season and the first flood season of Dongjiang River present no significant decrease trend, and the precipitation in the annual and post-flood seasons and the number of rainstorm days do not increase significantly; the annual, flood season, front (back) flood season precipitation and the number of rainstorm days more distribute in the southwest and more in the northeast. The flood season is the concentrated period of precipitation and heavy rain, and there are more pre-flood periods and less post-squat periods. The floods in the flood season had mutations in 1972, 1986 and 2007, and precipitation in the first flood season. Mutation occurred in 1971 and 2005, and there was no mutation in the post-rhodium precipitation. The number of rainstorm days in the flood season occurred in 2003 and around 2008. The number of rainstorm days in the first flood season changed in 1972 and around 2004. The number of rainstorm days in the flood season changed before and after 2011. The annual precipitation was 2 years, 4~5 years and 8~10 years. oscillation period during the 10 years, the number of annual rainstorm days has the 2~4 years, 5~6 years, and 8~10 years period, which has a good correspondence with the annual precipitation period.

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备注/Memo

收稿日期:2018-10-29;改回日期:2018-11-25。
基金项目:广东省气象部门青年英才助推计划项目（2015-151）；广东省气象局科学技术研究项目（GRMC2018Q17）；河源市社会发展科技计划项目（180628100222162）；广东省河源市气象局气象科学技术研究项目（2017-02）
作者简介:曾钦文(1989-),男,广东梅州人,硕士,工程师,主要从事天气预报与气候变化研究。E-mail:403200385@qq.com
通讯作者:巫燕辉(1972-),男,广东梅州人,学士,高级工程师,主要从事气象防灾减灾与气候变化研究。E-mail:1047963647@qq.com

更新日期/Last Update: 1900-01-01