1961-2008年湖北省冷冬时空变化特征
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中国气象局2010年气候变化专项(CCFS-10-4)、湖北省气象局科技发展基金重点项目(QY-Z-201009)和湖北省地方标准“冷冬等级”(201013)


Spatial and temporal characteristics of cold winter in Hubei Province from 1961 to 2008
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    摘要:

    利用湖北省70个气象站1960-2008年冬季逐日平均气温数据,采用湖北省地方标准《冷冬等级》和自定义的冷冬指数,详细分析了湖北省1961-2008年间单站、分区、全省性(强、弱)冷冬事件时空变化特征及其灾害性。结果表明:湖北省单站冷冬频率呈东西部高、中部低的经向分布特征,强冷冬频率则呈南少北多的纬向分布特征;全省大部单站冷冬指数呈显著下降趋势;以1986年为界,前期(1961-1985年)冷冬事件频率较高,后期(1986-2008年)冷冬频率显著下降;48 a中全省性冷冬共发生13次(年),其中强冷冬(寒冬)共发生9次(年),集中出现在20世纪60至70年代,每次冷冬事件均对农业、交通、电力以及居民生活造成严重影响。

    Abstract:

    Based on the data of daily average temperature from 1960 to 2008 in all winters of 70 meteorological stations in Hubei Province,cold winters for single station were divided into two grades designated as “weak” and “strong”.Regional or provincial cold winters were analyzed based on cold winters of single station.It is revealed that the frequencies of cold winters for single station showed longitude type and the frequencies of strong cold winters for single station showed latitude type,meanwhile the frequencies of cold winters for most of stations showed decreasing trends significantly during the last 48 years.From 1961 to 1985,the occurrences of regional cold winters had a higher frequencies and the rate of 5 regional cold winters was over 60 percent.The incidence of cold winters decreased obviously since 1986.The results also showed that there were 13 provincial cold winter years over 48 years with 9 severe cold winters which mainly concentrated during 1960s and 1970s and led to serious damages on agricultural production,communication,electric power and people’s daily life.

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陈正洪,马德栗.1961-2008年湖北省冷冬时空变化特征[J].华中农业大学学报,2012,31(1):77-81

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