| 我国干旱地区大降水天气过程水汽来源 |
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| 引用本文： | 牟惟丰.我国干旱地区大降水天气过程水汽来源[J].应用气象学报,1991,2(3):308-314. |
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| 作者姓名： | 牟惟丰 |
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| 作者单位： | 1.国家气象局国家气象中心 |
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| 摘 要： | 干旱地区一般远离海洋，大降水天气过程的水汽供应方式往往有其特色。本文提出了我国干旱地区水汽供应方式的几种主要天气形势类型和特点，讨论了先兆过程的作用，南疆低层东风对降水的作用，中层西南气流对水汽的输送，以及本地区内循环水份的重要性。通过以上一些讨论对我国干旱地区大降水的水汽来源和供应方式给出概括的描述。
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A Review on the Supply of Water Vapour to Heavy Rain Process in Arid Regions of China |
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| Affiliation: | (National Meteorological Center, SMA) |
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| Abstract: | Arid regions are often far from sea and ocean, the patterns of supply of water vapour to heavy rain area are generally different from those in humid regions. Several major patterns were summarized and the effect of precursory light rain on the following heavy rain process, the effect of low-level easterly wind on the occurrence of heavy rain, the role of advected (external) moisture, and especially the importance of recycled (internal) moisture in south Xinjiang were also discussed |
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