中国近50 a地表温度时空变化特征分析
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国家重点基础研究发展计划项目(973计划)"气候变暖背景下我国南方旱涝灾害的变化规律及其影响与机理"(2013CB430200)之子专题"气候变暖背景下我国南方旱涝灾害规律的变化(2013CB430201)


Temporal and Spatial Changes of Land Surface Temperature in China in Recent 50 Years
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    摘要:

    [目的] 研究大气下垫面地表温度的时空分布规律,为进一步了解中国区域地气相互作用,地表能量交换等提供科学依据。[方法] 通过气候统计方法,对中国近50 a地表温度时空变化特征进行研究。[结果](1)中国近50 a平均地表温度呈显著上升趋势,平均每10 a上升0.29℃,尤其2000年以来中国年平均地表温度增温趋势最显著。对于四季而言,中国近50 a地表温度在所有季节均呈现上升趋势,从增温趋势看,冬季平均地表温度增温趋势最明显。(2)中国近50 a平均地表温度空间分布由北向南逐渐升高。对于四季而言,地表温度在所有季节都呈现出由北向南升高,但是不同季节地表温度分布有着不同的特点。(3)中国近50 a大部地区地表温度增温显著,其中中国北方大部地区增温明显,增温率为(0.2~0.6℃)/10 a。[结论] 中国近50 a平均地表温度呈显著上升趋势,且由北向南逐渐升高。

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    [Objective] We aimed to study the spatial and temporal variation of land surface temperature in order to provide a scientific basis for the further understanding of regional land-atmosphere interactions and surface energy exchange in China.[Methods] By statistical analysis, the spatial change of ground temperature in recent 50 years in China has been discussed.[Results] (1) In recent 50 years, the average ground temperature in China showed an increasing trend at a rate of 0.29℃/10 a. Significant increase occurred since 2000. The ground temperature in recent 50 years has increased in all seasons, while it increased most in winter.(2) The spatial distribution of ground temperature showed an increasing trend from the north to the south in all seasons, but it was slightly different in different seasons.(3) In recent 50 years, in most area of China, the ground temperature increased dramatically, especially in the north part of China, the increasing rate of temperature reached to 0.2~0.6℃/10 a.[Conclusion] In recent 50 years, the average surface temperature of China showed a significant increasing trend, and spatially increased from the north to the south.

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乔丽,吴林荣,张高健.中国近50 a地表温度时空变化特征分析[J].水土保持通报,2015,35(5):323-326

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  • 收稿日期:2015-03-05
  • 最后修改日期:2015-03-26
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  • 在线发布日期: 2016-04-05
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