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地球科学进展  2011, Vol. 26 Issue (10): 1109-1115    DOI: 10.11867/j.issn.1001-8166.2011.10.1109
研究简报     
遵义市2009/2010年秋冬春连旱事实及形成原因初析
姚正兰,王君军
贵州省遵义市气象局,贵州遵义563002
A Preliminary Analysis of Serious Drought in Autumn, Winter and Spring in Zunyi from 2009 to 2010
Yao Zhenglan, Wang Junjun
Zunyi Meteorological Bureau of Guizhou Province,Zunyi563002, China
 全文: PDF(2107 KB)  
摘要:

2009年秋季到2010年初春,遵义市出现了特大干旱,对农业、林业、人畜饮水、水利电力等方面造成严重的危害和巨大的损失。详细分析干旱期间的气象要素,从秋季9月到初春3月的总降水量不足常年同期平均值的一半,并与历史上的秋冬干旱年份进行了比较,发现本次干旱期间遵义市大部分地方降水量等多项气象要素突破历史最少记录,因此认为2009—2010年出现的干旱是有气象记录以来最严重的秋冬春连旱,并且是在2009年夏季降水偏少的基础上发生的,因此干旱影响尤为突出。讨论了干旱期间大气环流和水汽输送特征,认为副热带高压持续偏强,冷空气势力弱,水汽输送差是造成干旱的主要气象成因。

关键词: 秋冬春连旱气象成因遵义市    
Abstract:

From the autumn of 2009 to the spring of 2010, a serious drought occurred in Zunyi, The drought has caused severe damage and loss to agriculture, forestry, drinking water, hydraulic power, etc. This paper analyzes the elements of weather during the drought. From September 2009 to March 2010, total rainfall was less than half of the annual average amount of the past years. With comparison with winter droughts of the past years, meteorological elements such as rainfall in most parts of the city reached an all-time low. It is believed that the drought from 2009 to 2010 has been the most serious drought from autumn to spring successively since the city had meteorological record. The drought took place on the basis of the little rainfall in summer of 2009, and thus its impact is quite serious. The general circulation and the transfer of water vapor characteristic in arid period are discussed. It is believed that the continuous strong subtropical pressure, the weak cold air influence and the difference of the transfer of water vapor create the arid main meteorological origin.

Key words: Drought from autumn to spring    Meteorological causes    Zunyi.
收稿日期: 2010-05-27 出版日期: 2011-10-10
:  P426.616  
基金资助:

贵州省气象局气象科技开发研究基金项目“基于自动站和雷达资料的突发气象灾害监测预警系统研究”(编号:黔气科合KF[2009]10号)资助.

通讯作者: 姚正兰(1965-),女,贵州遵义人,高级工程师,主要从事短期气候预测和气候变化研究。     E-mail: gzzyyzl@sohu.com
作者简介: 姚正兰(1965-),女,贵州遵义人,高级工程师,主要从事短期气候预测和气候变化研究. E-mail:gzzyyzl@sohu.com
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引用本文:

姚正兰,王君军. 遵义市2009/2010年秋冬春连旱事实及形成原因初析[J]. 地球科学进展, 2011, 26(10): 1109-1115.

Yao Zhenglan, Wang Junjun. A Preliminary Analysis of Serious Drought in Autumn, Winter and Spring in Zunyi from 2009 to 2010. Advances in Earth Science, 2011, 26(10): 1109-1115.

链接本文:

http://www.adearth.ac.cn/CN/10.11867/j.issn.1001-8166.2011.10.1109        http://www.adearth.ac.cn/CN/Y2011/V26/I10/1109

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