[1]陆杰英,孙丽颖,王春林,等.1979-2020年粤北和珠三角地区夏季降水结构对比分析[J].气象研究与应用,2022,43(02):23-28.[doi:10.19849/j.cnki.CN45-1356/P.2022.2.04]
　Lu Jieying,Sun Liying,Wang Chunlin,et al.Comparative analysis of summer precipitation structure in northern Guangdong and the Pearl River Delta from 1979 to 2020[J].Journal of Meteorological Research and Application,2022,43(02):23-28.[doi:10.19849/j.cnki.CN45-1356/P.2022.2.04]
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1979-2020年粤北和珠三角地区夏季降水结构对比分析()
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气象研究与应用[ISSN:1673-8411/CN:45-1356/P]

卷:
第43卷
期数:
2022年02期
页码:
23-28
栏目:
研究论文
出版日期:
2022-06-15

文章信息/Info

Title:
Comparative analysis of summer precipitation structure in northern Guangdong and the Pearl River Delta from 1979 to 2020
作者:
陆杰英1;  孙丽颖1;  王春林2;  翟志宏3;  吴健达2
1. 广东省广州市增城区气象局, 广州 511300;
2. 广州市气候与农业气象中心, 广州 511430;
3. 环珠江口气候环境与空气质量变化野外科学观测研究站, 广东 珠海 519082
Author(s):
Lu Jieying1;  Sun Liying1;  Wang Chunlin2;  Zhai Zhihong3;  Wu Jianda2
1. Zengcheng District Meteorological Bureau, Guangzhou 511300, China;
2. Guangzhou Climate and Agrometeorological Center, Guangzhou 5114303, China;
3. Field Scientific Observation and Research Station for Climate, Environment and Air Quality Changes Around the Pearl River Estuary, Guangdong Zhuhai 519082, China
关键词:
粤北; 珠三角; 持续性降水; 降水结构
Keywords:
North Guangdong; the Pearl River Delta; continuous precipitation; precipitation structure
分类号:
P426
DOI:
10.19849/j.cnki.CN45-1356/P.2022.2.04
摘要:
利用1979-2020年粤北和珠三角地区30个气象站逐日降水资料，通过计算降水集中度指数Q，分析了广东省粤北和珠三角地区夏季降水的结构。结果表明：（1）粤北和珠三角地区夏季降水空间分布呈北低南高态势，Q值为0.2~0.4，降水结构粤北比珠三角集中；两地降水量均呈增多趋势，珠三角中部增速最明显为30mm·（10a）-1，Q指数则呈下降趋势。（2）日雨量 ≥ 1mm雨日呈增多趋势，广州增速最大（2d·（10a）-1）；持续多日降水过程珠三角呈增加趋势，粤北相反。（3）日雨量 ≥ 25mm雨日呈增加趋势，广州增速最大（0.92d·（10a）-1），珠三角以雨日<3d降水过程占主导，粤北相反。（4）粤北日雨量 ≥ 50mm日数及雨日 ≥ 3d降水过程呈增加趋势，珠三角<3d降水过程呈增加趋势。粤北和珠三角夏季降水结构差异明显，存在反相分布现象。
Abstract:
Using the daily precipitation data of 30 meteorological stations in northern Guangdong and the Pearl River Delta from 1979 to 2020, and calculating the precipitation concentration index Q, the structure of summer precipitation in northern Guangdong and the Pearl River Delta was analyzed. The results show that (1) the spatial distribution of summer precipitation in northern Guangdong and the Pearl River Delta is lower in the north and higher in the south, with a Q value of 0.2~0.4, and the precipitation structure in northern Guangdong is more concentrated than that in the Pearl River Delta. The precipitation in both places show an increasing trend. The most obvious growth rate in the middle is 30mm·(10a)-1, and the Q index shows a downward trend. (2) The rainy days with daily rainfall ≥ 1mm show an increasing trend, and the maximum growth rate in Guangzhou is 2d·(10a)-1; the continuous multi-day rainfall process in the Pearl River Delta shows an increasing trend, and the opposite in northern Guangdong. (3) The rainy days with daily rainfall ≥ 25mm show an increasing trend, the maximum in Guangzhou is 0.92d·(10a)-1, the precipitation process of the Pearl River Delta is dominated by the rainy days <3d, and the opposite in northern Guangdong. (4) The number of days with daily rainfall ≥ 50mm in northern Guangdong and the precipitation process of rainy days ≥ 3d show an increasing trend, and the precipitation process that less than 3d in the Pearl River Delta show an increasing trend. There are obvious differences in the summer precipitation structure between northern Guangdong and the Pearl River Delta, and there is an opposite phase distribution phenomenon.

参考文献/References:

[1] 广东省气象局《广东省天气预报技术手册》编写组.广东省天气预报技术手册[M].北京,气象出版社,2006.
[2] 林锦冰,郑瑶娜,陈泳峰,等.揭阳市降水气候特征及其与厄尔尼诺/拉尼娜事件的关系[J].气象研究与应用,2020,41(1):11-15.
[3] 刘璐,张峰.一种短历时降雨综合评估方法在广州市的应用[J].气象研究与应用,2020,41(1):35-40.
[4] 梁振清,陈生.基于深度学习和雷达观测的华南短临预报精度评估[J].气象研究与应用,2020,41(1):41-47.
[5] 钱维宏,陈绿文,栗晗.中期模式扰动量在广州-东莞极端暴雨中的解释应用[J].气象研究与应用,2020,41(2):7-13.
[6] 林爱兰,李春晖,谷德军,等.广东省持续性干旱事件的变化及其成因[J].热带气象学报,2010,26(6):641-650.
[7] 凌良新,章鹰,陈往溪.广东年、季降水量时空变化分布特征[J].广东气象,2008,30(6):24-27.
[8] 薛羽君,董航宇,陈莉,等.广东省夏半年降水敏感区域分析[J].气象研究与应用,2014,35(3):5-10,126.
[9] Shannon C E.A Mathematical Theory of Communication[J].Bell System Technical Journal,2014,27(3):379-423.
[10] Li H, Zhai P M,Lu E, et al. Changes in Temporal Concentration Property of Summer Precipitation in China during 1961-2010 Based on a New Index[J]. Journal of Meteorological Research,2017,31(2):336-349.
[11] Sen P K. Estimates of the Regression Coefficient Based on Kendall’s Tau[J]. Journal of the American Statistical Association,1968,63(324):1379-1389.
[12] 曾志平.1979-2015年清远市汛期极端降水时空变化特征分析[J].人民珠江,2019,40(5):50-55.
[13] 李丽平,白婷.华南夏季多年平均降水低频特征及其与低频水汽输送关系[J].大气科学学报,2014,37(3):323-332.
[14] 邹贤菊,宋晓猛,刘翠善,等.珠江三角洲地区汛期降水时空演变特征[J].水利水电技术(中英文),2021,52(6):21-32.

备注/Memo

备注/Memo:
收稿日期:2022-04-11。
基金项目:广东省农业科技创新及推广项目（2020KJ102）、广州市气象局都市气候与农业气象创新团队项目
作者简介:陆杰英(1982-)女,广东省佛山市人,工程师,研究方向:应用气象。E-mail:20139478@qq.com
通讯作者:王春林,正研级高级工程师,研究方向:应用气象、生态气象。E-mail:444217124@qq.com
更新日期/Last Update: 1900-01-01