东篱科研大数据发现系统（DRDS）

位置：成果数据库 > 期刊 > 期刊详情页

The Impact of the Eastward Propagation of Convective Systems over the Tibetan Plateau on the Southwest Vortex Formation in Summer

ISSN号：0577-6619
期刊名称：《气象学报》
时间：0
分类：P433[天文地球—大气科学及气象学] P432.1[天文地球—大气科学及气象学]
作者机构：[1]Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China, [2]State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100084, China, [3]Graduate University of Chinese Academy of Sciences, Beijing 100049, China, [4]Cold andAridRegions Environmental andEngineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
相关基金：This research was supported by the National Natural Science Foundation of China （Grant Nos. 40875021 and 40930951） and the project of the State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences （Grant No. 2009LASW-A03）.

作者： FU Shen-Ming[1], SUN Jian-Hua[1,2], ZHAO Si-Xiong[1], LI Wan-Li[3,4]

关键词：青藏高原, 西南低涡, 对流系统, NCEP再分析资料, 夏季, 服务行业, 从业人员, 降水云系, Tibetan Plateau, southwest vortex, convective system, temperature of the black body, latent heat release, plateau edge cyclogenesis

中文摘要：

基于黑身体( TBB )的温度，观察的车站和 NCEP 分析数据，在西南旋涡( SWV )上的西藏的高原上的对流的云系统的东方繁殖的影响在2003年6月29日发生在 1800 UTC 的形成被使用 Zwack-Okossi ( Z-O )分析诊断热、动态的进程的方程。在夏天，严重对流活动经常由于潮湿的丰富的供应发生在西藏的高原上，这被发现。高原的东方边附近的对流的云能移动与短波马槽在东方西。被潜伏的热版本导致的分叉的中心，与严重对流活动被联系，与对流的云搬出去并且贡献为高原边风暴之发展形成(PEC ) 的形成有利的低级解压缩。Z-O 方程显示在这种情况中，潜伏的热版本和集中是为 SWV 形成的二个很重要的因素，它分别地等于大约 42% 学期总数和 15% 。热过程效果在 SWV 形成期间是比动态过程更重要的，这被暗示。

英文摘要：

Based on the temperature of the black body （TBB）, station observed and NCEP reanalysis data, the impacts of the eastward propagation of convective cloud systems over the Tibetan Plateau on the southwest vortex （SWV） formation that occurred at 1800 UTC on 29 June 2003 are analyzed by using the Zwack-Okossi （Z-O） equation to diagnose the thermal and dynamic processes. It is found that, in summer, severe convective activities often occur over the Tibetan Plateau due to the abundant supply of moisture. The convective cloud near the east edge of the plateau could move eastward with a short- wave trough in the westerly. The divergent center that is induced by latent heat release, which is associated with severe convective activities, moves out with the convec- tive cloud and contributes to the low level decompression which is favorable for the formation of plateau edge cyc- logenesis （PEC）. The Z-O equation indicates that, in this case, the latent heat release and convergence are the two most important factors for SWV formation, which amounts to about 42% and 15% of the term TOTAL, re- spectively. It is implied that the thermal process effect was more important than the dynamic process during SWV formation.

同期刊论文项目