| 近40年来阿拉善地区的沙尘暴天气 |
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| 引用本文： | 尤莉,王革丽,吴学宏,王国勤.近40年来阿拉善地区的沙尘暴天气[J].干旱区资源与环境,2004(Z1). |
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| 作者姓名： | 尤莉 王革丽 吴学宏 王国勤 |
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| 作者单位： | 内蒙古气象探测资料中心 内蒙古呼和浩特010051
(尤莉)，中国科学院大气物理所中层与遥感部 北京100029
(王革丽)，内蒙古气象台 内蒙古呼和浩特010051
(吴学宏)，内蒙古气象台 内蒙古呼和浩特010051(王国勤) |
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| 基金项目： | 国家重点科技攻关项目(2000-k01-03-02)资助。 |
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| 摘 要： | 本文根据内蒙古阿拉善地区1961～2000年40年的沙尘暴、扬沙资料,分析其气候学特征,着重分析其地理特征、季节特征以及年际、年代际变化特征。结果显示,近40年来阿拉善地区沙尘暴出现日数在减少。但是进入20世纪90年代,阿拉善北部地区沙尘暴出现日数却呈波动增加趋势。沙尘暴出现日数的变化是特定气候变化的反映,下垫面条件的持续恶化是该地区沙尘暴天气持续增加的重要原因。
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| 关 键 词： | 阿拉善 沙尘暴 气候特征 变化 |
Sand Storm Weather in Alashan in Recent 40 Years |
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| YOU Li,WANG Ge-li,WU Xue-hong,WANG Guo-qin.Sand Storm Weather in Alashan in Recent 40 Years[J].Journal of Arid Land Resources and Environment,2004(Z1). |
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| Authors: | YOU Li WANG Ge-li WU Xue-hong WANG Guo-qin |
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| Institution: | YOU Li 1 WANG Ge-li 2 WU Xue-hong 3 WANG Guo-qin 3 |
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| Abstract: | Based on the observed dust-storm data in Alashan region of Inner Mongolia from 1961 to 2000, the climatic characteristics on dust-storm in this region, especially the geographical distribution and seasonal , yearly and decadal characteristics have been analyzed. The results show that dust-storm-days in Alashan region decreased during the last 40 years, the days were increasing as wave in northern Alashan in 1990s, the variation of the dust-storm-days is in response to some special climate variation, and the incessant deteriorated surface conditions is the important reason of increasing dust-storm-days in this region. |
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| Keywords: | Alashan dust-storm climatic characteristics climatic variation |
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