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气象:1990,16(6):9-14
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侵入青藏高原冷空气过程的等熵位涡分析
(气象科学研究院)
An analysis with isentropic potential vorticity on a cold wave entering the Qinghai-Xizang Plateau
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中文摘要: 用等熵位涡(IPV)图分析了1983年1月8—10日侵入青藏高原的一次较强冷空气过程。过程中,冷空气自乌拉尔山东侧的平流层,经巴尔喀什湖地区和新疆,进入青藏高原。天气系统在巴尔喀什湖地区强烈发展。文中讨论了其发展的动力学特征,揭示了冷空气的性质和结构及高原的影响。同时表明IPV图对大尺度天气过程的分析和预报具有很大潜力。
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Abstract:A strong cold wave entering Qinghai-Xizang Plateau during 8-10 January of 1983 is analys.ed by the isentropic potential vorticity (IPV) maps. In this process,the cold air from the stratosphere over the eastern , side of the Urals entered its appearance into the Qinghai-Xizang Plateau through the area of Balkhash Lake and Xinjiang. The weather system developed strongly in the Balkhash Lake area. Its dynamic characteristics -for the development is discussed. The feature and structure of the cold currents and the effects of the plateau are discovered.Therefore it shows that IPV maps are potentially reasonable for the analysis and forecasting of the large scale weather systems.
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引用文本:
赵其庚,1990.侵入青藏高原冷空气过程的等熵位涡分析[J].气象,16(6):9-14.
,1990.An analysis with isentropic potential vorticity on a cold wave entering the Qinghai-Xizang Plateau[J].Meteor Mon,16(6):9-14.