| 西北干旱区空中水资源的时空变化特征及其原因分析 |
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| 引用本文： | 刘芸芸,张雪芹.西北干旱区空中水资源的时空变化特征及其原因分析[J].气候变化研究进展,2011,7(6):385-392. |
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| 作者姓名： | 刘芸芸 张雪芹 |
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| 作者单位： | 1. 国家气候中心;2. 中国科学院地理科学与资源研究所; |
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| 基金项目： | 国家重点基础研究发展计划(2009CB421300); 国家科技支撑计划(2009BAC51B05); 国家自然科学基金项目(41005037) |
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| 摘 要： | 利用1979-2008年NCEP/NCAR月平均再分析资料,从大气可降水量、水汽输送及收支等方面分析西北干旱区空中水资源的时空变化特征,并揭示其主要原因.研究表明,1979- 2008年西北干旱区整层年水汽含量略呈增加趋势,而夏季水汽总收入呈现显著增加趋势.区域空中水资源的变化与中纬度西风水汽输送密切相关.尽管区域西...
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| 关 键 词： | 西北干旱区 水汽输送 大气可降水量 水汽收支 |
Variations of Atmospheric Water Resources over the Arid Region of Northwest China and Its Causes |
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| Liu Yunyun,Zhang Xueqin.Variations of Atmospheric Water Resources over the Arid Region of Northwest China and Its Causes[J].Advances in Climate Change,2011,7(6):385-392. |
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| Authors: | Liu Yunyun Zhang Xueqin |
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| Institution: | Liu Yunyun1,Zhang Xueqin2(1 National Climate Center,China Meteorological Administration,Beijing 100081,China,2 Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China) |
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| Abstract: | Based on the NCEP/NCAR monthly reanalysis data from 1979 to 2008,this paper has analyzed the variations of the atmospheric water resource over the arid region of Northwest China(ARNC) from the aspects of water vapor transport,precipitable water vapor and water vapor budget,and then has revealed the main causes of the variability.The results show that the annual precipitable water vapor over ARNC has shown increasing trend during the recent 30 years,while the summer water vapor net income has displayed an ev... |
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| Keywords: | arid region of Northwest China(ARNC) water vapor transport precipitable water content water vapor budget |
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