| 高原北侧降水过程的等熵位涡分析 |
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| 引用本文： | 李立.高原北侧降水过程的等熵位涡分析[J].高原气象,1992,11(3):267-274. |
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| 作者姓名： | 李立 |
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| 作者单位： | 新疆气象科学研究所 乌鲁木齐市 |
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| 基金项目： | 国家自然科学基金，新疆维吾尔自治区自然科学基金联合资助 |
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| 摘 要： |
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| 关 键 词： | 高原 降水 等熵位涡 分析 |
ISENTROPIC POTENTIAL VORTICITY ANALYSIS OF A PRECIPITATION PROCESS OVER THE NORTHERN PART OF QINGHAI-XIZANG PLATEAU |
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| Li Li.ISENTROPIC POTENTIAL VORTICITY ANALYSIS OF A PRECIPITATION PROCESS OVER THE NORTHERN PART OF QINGHAI-XIZANG PLATEAU[J].Plateau Meteorology,1992,11(3):267-274. |
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| Authors: | Li Li |
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| Abstract: | In this paper, isentropic potential vorticity (IPV) theory is used to investigate a precipitation process in summer, which occured in Xinjiang of the Northern Qinghai-Xizang Plateau. The structure of atmospheric dynamic process associatted with precipitation is discussed. The results show that with the development of synoptic system, gradient of sloping to the north of isentropic surface in this region increassed, updraft enhanced here, so precipitation was influenced. The positive advection of IPV in IPV peak area make sense to forecast region in which it would be rain. The influencing system at surface mainly caused by frictional effects in planetary boundary layer frequently are high pressure ridges. |
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| Keywords: | Isentropic potential vorticity (IPV) Diagnostic analysis |
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