白永清,智协飞,祁海霞,张玲.基于多尺度 S P I的中国南方大旱监测.气象科学,2010,(3):292-300 Bai Yongqing,Zhi Xiefei,Qi Haixia,Zhang Ling.Severe drought monitoring in south China based on the standardized precipitation index at different scales.Journal of the Meteorological Sciences,2010,(3):292-300
基于多尺度 S P I的中国南方大旱监测
Severe drought monitoring in south China based on the standardized precipitation index at different scales
投稿时间:2009-05-11  
DOI:10.3969/2012jms.00**
中文关键词:  南方干旱监测,连旱,标准化降水指数
英文关键词:Drought monitoring,Consecutive drought,Standardized precipitation index
基金项目:教育部留学回国人员科研启动基金(2720);江苏省六大人才高峰项目.
作者单位
白永清 南京信息工程大学 气象灾害省部共建教育部重点实验室,南京 210044 
智协飞 南京信息工程大学 气象灾害省部共建教育部重点实验室,南京 210044 
祁海霞 南京信息工程大学 气象灾害省部共建教育部重点实验室,南京 210044 
张玲 南京信息工程大学 气象灾害省部共建教育部重点实验室,南京 210044 
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中文摘要:
      用标准化降水指数(SPI)对2003年南方大旱发生、发展、持续、缓解进行全过程监测。2002年12月—2003年5月中国西南地区东部以及华南南部两广交界一带发生冬春连旱,其中西南地区东部冬旱最为严重,华南南部一带春旱最为严重。入夏以来南方大范围地区6—12月逐月均表现亏水,尤以7、8、10月亏水面积最广,强度最大。2003年6—12月长江以南大范围地区持续夏秋冬三季连旱,旱情极为严重,局部地区出现极端干旱,而长江以北则持续偏涝。2003年3月—2004年2月全年属于典型的“南旱北涝”型分布。基于多尺度SPI进一步统计南方地区1951—2007年历史上严重的夏秋冬季连旱事件。结果表明1980s以前发生过3次,分别是1956、1967、1978年,每11 a出现一次;1980s以后仅2003年发生1次。而这4次连旱的强度却是一次高于一次。
英文摘要:
      Based on the precipitation data of 160 stations in China during the period from January 1951 through October 2007, the entire drought process in 2003 in southern China was monitored by using the standardized precipitation index (SPI). It was found that the consecutive drought in summer, autumn and winter occurred in the eastern region of southwest China where drought was the most serious in winter, and the southern part of south China where the drought was the most severe in spring during the period from December 2002 to May 2003. Water deficit occurred month by month since the beginning of summer in the large areas of south China. In addition, the extreme water shortage took place in July, August and October in large areas. From June to December 2003, the consecutive drought in summer, autumn and winter affected large areas in the south of the Yangtze River, while the consecutive flood occurred in the north of the Yangtze River. “Drought in the south and flood in the north” was the typical pattern from March 2003 to February 2004. Based on multi-scale SPI analysis, the consecutive drought events during the period 1951—2007 in south China was investigated in detail.The events of consecutive drought in summer, autumn and winter occurred three times before 1980s, namely in 1956, 1967 and 1978, and only one time in 2003 after 1980s. However, the intensities of the droughts in these four years were increasing year by year.
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