湖南气候对全球气候变化的响应
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中国气象局气候变化专项(200920);湖南省气象局重点科研项目(200801)


Response of Hunan climate to global climate change
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    摘要:

    利用湖南省96个台站1960—2010年逐日气象观测资料,在进行均一性检验和订正的基础上对湖南省气候变化事实进行检测分析。结果表明:湖南气候与全球气候变化一致,呈现以变暖为主要特征的变化,且变暖存在季节、地域上的差异,冬、春、秋气温变暖趋势显著,增暖幅度最大的区域在湘北地区;对气候变暖响应敏感的要素主要是与平均气温、冬季气温相关密切的要素,如季平均气温、年平均最低气温、活动积温等;湖南气温在突变时间上具有较好的时间逻辑关系;湖南降水量无显著趋势变化,但极端降水增加,地域性差异明显,湖南东部地区降水量呈现明显增加趋势,日降水量大于等于100 mm的日数呈显著增加趋势;湖南日照时数、风速、相对湿度均呈现显著减少的变化趋势。

    Abstract:

    After the homogeneity test and correction,the meteorological data from 96 observation stations in Hunan province during 1960—2010 were used to analyze the climate change facts there.The results showed that getting warm was the main characteristic in climate change in Hunan,which was consistent with the global trend.The warming tendency in Hunan also presented seasonal and regional differences:the linear warming trend was significant in winter,spring and autumn and the most significant warming region appeared in northern areas;the factors sensitive to warming were closely related to temperature such as seasonal mean temperature,annual mean minimal temperature and active accumulated temperature.The abrupt change times of temperature presented a good logical relation;the linear trend of precipitation in Hunan was not significant but it presented regional differences and the extreme preicipitation events was increasing.There was an increasing trend in precipitation in eastern areas of Hunan and the annual days with daily precipitation of more than 100 mm were increasing significantly.The annual sunshine hours,annual mean wind speed and annual mean relative humidity in Hunan presented a significantly decresing trend in recent 61 years.

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廖玉芳,彭嘉栋,郭庆,2014.湖南气候对全球气候变化的响应[J].大气科学学报,37(1):75-81. LIAO Yu-fang, PENG Jia-dong, GUO Qing,2014. Response of Hunan climate to global climate change[J]. Trans Atmos Sci,37(1):75-81.

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  • 收稿日期:2011-09-17
  • 最后修改日期:2012-03-05
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  • 在线发布日期: 2014-02-25
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