doi:  10.3878/j.issn.1006-9895.1904.18255
中国夏季风影响过渡区与其它地区蒸发皿蒸发趋势相反的原因

The reason why China''s summer monsoon affects the transition zone is opposite to that of other regions.
摘要点击 365  全文点击 85  投稿时间:2018-11-13  修订日期:2019-02-11
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基金:  
中文关键词:  夏季风影响过渡区  蒸发皿蒸发  气象因子独立变化  贡献率  
英文关键词:  Summer monsoon transition region  The pan evaporation  The single meteorological factor changing  Contribution rate  
           
作者中文名作者英文名单位
杨司琪Yang Siqi兰州大学大气科学学院
张强Zhang Qiang
奚小霞
乔梁
引用:杨司琪,张强,奚小霞,乔梁.2020.中国夏季风影响过渡区与其它地区蒸发皿蒸发趋势相反的原因[J].大气科学
Citation:Yang Siqi,Zhang Qiang.2020.The reason why China''s summer monsoon affects the transition zone is opposite to that of other regions.[J].Chinese Journal of Atmospheric Sciences (in Chinese)
中文摘要:
      夏季风影响过渡区是天气和气候的敏感区,随着全球变暖,其特殊的气候环境响应引起人们对该地区的重点关注。研究以南昌、定西、乌鲁木齐作为夏季风影响区、夏季风影响过渡区以及非夏季风影响区的代表站,通过对比中国夏季风影响过渡区和其他地区50年来各气象因子的气侯变化趋势,以及分析各气象因子单独变化对蒸发皿蒸发的影响,发现了在夏季风影响过渡区各个气象因子的变化均使蒸发皿蒸发量增加,而在非夏季风影响过渡区,只有温度使蒸发皿蒸发量增加,其他各因子的变化均会造成蒸发皿蒸发量的下降。贡献度更直观的反映各气象因子对不同地区蒸发皿蒸发的作用。结果表明温度对夏季风影响过渡区蒸发皿蒸发量的贡献最大,贡献率为48.93%。风速对夏季风影响区蒸发皿蒸发量的贡献最大,贡献率为51.54%。降水量对非夏季风影响区蒸发皿蒸发量的贡献最大,贡献率为58.57%。此外,低云量对夏季风影响过渡区、夏季风影响区和非夏季风影响区的贡献均达到20%以上。因此,不同地区影响蒸发皿蒸发的最主要的因子是不同的,但低云量对任何地区蒸发皿蒸发的影响都非常重要。
Abstract:
      The summer monsoon transition region is a sensitive region of weather and climate. With global warming, its special climate environmental response has attracted more attention.It is studied that Nanchang station, Dingxi station and Urumqi station can take as representative stations of summer monsoon region, the summer monsoon transition region and non-monsoon region.The climate change trends were compared between the summer monsoon transition region and other regions of China over the past 50 years.The trends of pan evaporation wih the single meteorological factor changing were analyzed. We found in the summer monsoon transition region ,any single meteorological factor changed would lead to the trends of pan evaporation increase.But in the other region, only air temperature changed would lead to the trends of pan evaporation increase, other factors changed would cause the pan evaporation decreased.The contribution rate can intuitively reflect the effect of meteorological factor.The results showed that the temperature had the greatest contribution to the pan evaporation in the summer monsoon transition region.The contribution rate was 48.93%.The wind speed had the greatest contribution to the pan evaporation in the summer monsoon region.The contribution rate was 51.54%.Precipitation contributed the most to the pan evaporation in the non-monsoon region, with a contribution rate of 58.57%.In addition, the contribution of low cloud cover reached more than 20 percent no mater the summer monsoon transition zone and other regions.Therefore, the main factors affecting the pan evaporation were different in different regions, but the effect of low cloud in any regions were very important.
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