| 华南一次典型MCC过程的成因及天气分析 |
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| 引用本文： | 刘峰,李萍.华南一次典型MCC过程的成因及天气分析[J].气象,2007,33(5):77-82. |
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| 作者姓名： | 刘峰 李萍 |
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| 作者单位： | 民航中南空中交通管理局气象中心,广州,510406 |
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| 摘 要： | 利用常规资料、FY2C红外TBB等资料分析了2006年5月6日发生在华南地区的一次典型MCC过程,发现在具备充足的水汽和不稳定层结条件下,地面冷空气的辐合抬升作用和高低空急流的耦合是此次MCC形成和发展的关键,同时“喇叭口”地形以及下垫面温度日变化也起着重要作用。利用广州白云机场的多普勒雷达和地面自动站资料对MCC内部的飑线进行实时监测,得到低空风切变对机场的影响情况。
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| 关 键 词： | 飑线 下击暴流 低空风切变 |
| 收稿时间： | 8/8/2006 12:00:00 AM |
| 修稿时间： | 2006-08-082007-01-31 |
Mechanism Analysis of a Typical MCC Event in South China |
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| Liu Feng and Li Ping.Mechanism Analysis of a Typical MCC Event in South China[J].Meteorological Monthly,2007,33(5):77-82. |
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| Authors: | Liu Feng and Li Ping |
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| Institution: | Meteorological Center, Central and Southern Regional Air Traffic Management Bureau of CAAC, Guangzhou 510406 |
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| Abstract: | Based on meteorological observational data and FY-2C TBB, a typical mesoscale convective complex in South China on May 6, 2006 was analyzed. It shows that the surface cold air movement and the couple of high and low level jets are the keys to the formation and development of MCC under the unstable and plentiful vapor conditions. The trumpet-shape landform and the temperature change of underlay also contribute to its evolution. A squall line in MCC was monitored by using terminal Doppler radar and AWOS, and the value of low-level wind shear was calculated to provide for Guangzhou Baiyun airport. |
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| Keywords: | MCC |
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