| 西北地区降水对陆面特征敏感性的数值试验 |
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| 引用本文： | 周亚军,朱正义.西北地区降水对陆面特征敏感性的数值试验[J].干旱区地理,1995,18(2):72-76. |
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| 作者姓名： | 周亚军 朱正义 |
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| 作者单位： | 兰州干旱气象研究所!兰州730020(周亚军)，甘肃省气象局!兰州730020(朱正义，朱姝) |
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| 摘 要： | 本文是一个用大气环境模式研究中国西北地区陆面特征改变之后影响其降水的数值试验，模式中假定西北地区的植被完全被裸陆代替，对６、７、８月进行数值积分，以便检查夏季大气环流对陆面特征的响应，数值试验的结论是：陆面反照率升高后，与之相伴随的是降水率下降，并且大气的下沉运动控制了该地区。
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| 关 键 词： | 西北地区 降水 陆面特征 数值试验 |
NUMERICAL EXPERIMENT IN THE INFLUENCE OF GROUND SURFACE PROPERTY OF PRECIPITATION IN NORTHWEST CHINA |
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| Zhou Yajun.NUMERICAL EXPERIMENT IN THE INFLUENCE OF GROUND SURFACE PROPERTY OF PRECIPITATION IN NORTHWEST CHINA[J].Arid Land Geography,1995,18(2):72-76. |
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| Authors: | Zhou Yajun |
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| Abstract: | A numerical experiment in the influence of ground surface propcrty on precipitation in Northwest China has been carried out with GCM. It is supposed that the vegetation in Northwest China is replaced by desert, then, a model is integrated for three months (June,July and August) in order to examine the response of gcncral circulation to the changed ground surface. The simulated results show that if the albedo of ground surface is increased, precipitation will be decreased, and this area will be controlled by descending movement of atmosphere. |
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| Keywords: | precipitation in Northwest China property of ground surface numerical experiment |
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