| 冷空气引起的飞船主着陆场区偏北大风的特征分析及预报 |
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| 引用本文： | 王红军,胡英华,丁德华.冷空气引起的飞船主着陆场区偏北大风的特征分析及预报[J].内蒙古气象,2009(3):6-9. |
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| 作者姓名： | 王红军 胡英华 丁德华 |
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| 作者单位： | 1. 西安卫星测控中心,陕西,渭南,714000
2. 内蒙古气象台,内蒙古,呼和浩特,010051 |
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| 摘 要： | 分析了飞船主着陆场区1981—1999年1—4月和9—12月因冷空气而产生的偏北大风的过程中气候概况及其天气特征。通过分析发现:主着陆场区因冷空气引起的偏北大风以春季最频繁,秋、冬季最稀少;一天当中偏北大风以午后出现频率最大,午夜出现频率最少;对于不同季节的气压和温度,春、秋两季变化剧烈,冬季相对较小;在大风出现前24小时,主着陆场区的欧亚中高纬度大气环流以两槽一脊型、一槽一脊型、贝湖低压型为主;冷空气入侵前24小时,欧亚天气图上主着陆场区上游低层850hPa中高纬度有明显的冷中心,地面图场区上游冷高压中心的分布主要有3个区域:贝加尔湖西南至新疆、贝加尔湖到内蒙中北部、贝加尔湖西北部。大风前24小时在35～45°N、100～115°E等压线密集,等压线一般都在4根以上。
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| 关 键 词： | 冷空气 偏北大风 冷高压 |
Characteristic Analysis and Forecast on Northward Strong Wind in Spacecraft Main Landing Field Region Which Caused by Cold Air |
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| Authors: | Wang Hongjun Hu Yinghua Ding Dehua |
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| Institution: | 1.Xi'an Satellite Monitoring Center;Weinan 714000;2.Inner Mongolia Meteorological Bureau;Hohhot 010051 |
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| Abstract: | This paper analyzed climatic general situation and weather characteristic in the process of forming strong wind which caused by cold air in the spacecraft main landing field region during 1-4month and 5-9month of 1981-1999years.It is found that: the northward strong wind in spacecraft main landing field region which caused by cold air is the most frequent in spring and the least in summer and winter,the frequency of northward strong wind is the maximum in the afternoon during one day and the minimum in the ... |
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| Keywords: | Cold air North strong wind Cold high |
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