[1]陈征兰,陈燕丽,莫伟华,等.1961-2021年广西红树林生态区极端降雨事件时空变化特征[J].气象研究与应用,2023,44(03):9-14.[doi:10.19849/j.cnki.CN45-1356/P.2023.3.02]
　CHEN Zhenglan,CHEN Yanli,MO Weihua,et al.Temporal and spatial variations of extreme rainfall events in mangrove biome of Guangxi from 1961 to 2021[J].Journal of Meteorological Research and Application,2023,44(03):9-14.[doi:10.19849/j.cnki.CN45-1356/P.2023.3.02]
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1961-2021年广西红树林生态区极端降雨事件时空变化特征()
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气象研究与应用[ISSN:1673-8411/CN:45-1356/P]

卷:
第44卷
期数:
2023年03期
页码:
9-14
栏目:
出版日期:
2023-09-15

文章信息/Info

Title:
Temporal and spatial variations of extreme rainfall events in mangrove biome of Guangxi from 1961 to 2021
作者:
陈征兰1; 2;  陈燕丽1; 3;  莫伟华3;  孙明3;  何启玄2
1. 北海国家气候观象台开放实验室, 南宁 530022;
2. 北海市气象局, 广西 北海 536000;
3. 广西壮族自治区气象科学研究所, 南宁 530022
Author(s):
CHEN Zhenglan1; 2;  CHEN Yanli1; 3;  MO Weihua3;  SUN Ming3;  HE Qixuan2
1. Laboratory of Beihai National Climate Observatory, Nanning 530022, China;
2. Beihai Meteorological Bureau, Guangxi Beihai 536000, China;
3. Guangxi Institute of Meteorological Sciences, Nanning 530022, China
关键词:
红树林生态区; 极端降雨事件; 时空变化
Keywords:
mangrove biome; extreme rainfall events; temporal and spatial variations
分类号:
P426.6
DOI:
10.19849/j.cnki.CN45-1356/P.2023.3.02
摘要:
基于1961-2021年大气环流指数及广西沿海地区3个城市10个国家气象观测站日降水数据,研究广西红树林生态区极端降雨事件时空变化特征。结果表明:(1)近61a,广西红树林生态区降水强度、湿日总降水量、大雨和暴雨日数显著上升,说明极端降雨的强度及频率明显增加。(2)降水强度、大雨和暴雨日数突变年依次在1979-1980年、1971-1972年、1972-1978年之间,突变时间段相差不大。(3)防城港南部降雨的强度及频率较大,持续时间较长,防城港市北部相反,北海市降雨强度显著上升,防城港市东南部连续干日数减少趋势较明显,与红树林生态区整体增加趋势不同。(4)连续干日数、降雨强度均与亚洲极涡面积指数显著负偏相关。
Abstract:
Based on the atmospheric circulation index and daily precipitation of 10 national stations in three coastal cities from 1961 to 2021, we studied the temporal and spatial variations of extreme rainfall events in mangrove biome of Guangxi. The results showed that:(1) In 61 years, the trend of simple daily intensity index, annual total wet-day precipitation, heavy rain days and rainstorm days was significantly increased, which indicated that the intensity and frequency of extreme precipitation increased significantly.(2) The abrupt change years of simple daily intensity index, heavy rain days, and rainstorm days were from 1979 to 1980, from 1971 to 1972, and from 1972 to 1978, respectively, with little difference in the abrupt change period.(3) The intensity and frequency of rainfall in the southern part of Fangchenggang were relatively high, with a longer duration, while in the northern part of Fangchenggang, the opposite were true. The trend of simple daily intensity index of Beihai was significantly increased. The trend of continuous dry days in the southeast of Fangchenggang had an obvious decreasing trend, which was different from the overall increasing trend of the mangrove biome.(4) Continuous dry days were significantly negatively correlated with the Asian Polar Vortex Area Index, and simple daily intensity index was significantly negatively correlated with the Asian Polar Vortex Area Index, too.

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备注/Memo

备注/Memo:
收稿日期: 2023-01-10。
基金项目:北海国家气候观象台开放实验室专项研究项目"北部湾及周边地区气候变化对生态环境影响"(BNCO-2023S04)
作者简介:陈征兰(1997-),女,助理工程师,主要从事大气科学研究。E-mail:1628795189@qq.com
通讯作者:陈燕丽(1982-),女,博士,正研级高级工程师,主要从事生态遥感应用研究。E-mail:cyl0505@sina.com
更新日期/Last Update: 1900-01-01