西藏地区对流云系的天气学模式特征  被引量:1

Synoptic Model Analysis of Severe Convective Weather Systems Nephsystem over Tibet Areas

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作  者:裴春明 孙颖 王冰 邢军 

机构地区:[1]吉林省四平市气象局,吉林四平136000

出  处:《安徽农业科学》2012年第3期1771-1774,共4页Journal of Anhui Agricultural Sciences

摘  要:西藏地区在6~8月对流云系发展最为旺盛,对流天气中,雷暴的发生率最高,多分布在云团的边缘,冰雹大多伴随雷暴一起出现。利用MICAPS提供的2005~2009年卫星云图及地面、高空观测资料,将西藏地区的对流云系按系统性和非系统性2类进行研究。对比分析了云系与雷暴、冰雹等对流天气的生消演变关系,结合天气实况在云系演变中的反映,归纳出了切变线、低涡、槽线和弱气压场4类对流云系的天气学模式。The most vigorous severe convective weather nephsystem occurred during June–August over Tibet areas.The highest rate in the severe convective weather which the convective cloud caused was thunderstorm.Most of the thunderstorm occurred in the edges of the cloud,with hailstones appeared together.By utilizing the satellite images and surface chart,upper air chart data from 2005 to 2009 from the MICAPS,the severe convective of Tibet areas was divided into two types of systemic and non-systematic.The nephsystem was compared with the thunderstorm,hail and other convection extinction development relations.Combined with the reflection of actual weather in the evolution,concluded the shear line,trough-line,vortex and weak pressure field four kinds of convection weather learning model.

关 键 词:西藏 卫星云图 对流云系 天气学模式 

分 类 号:P468.027[天文地球—大气科学及气象学]

 

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