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气象:2007,33(5):77-82
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华南一次典型MCC过程的成因及天气分析
(民航中南空中交通管理局气象中心,广州 510406)
Mechanism Analysis of a Typical MCC Event in South China
(Meteorological Center,Central and Southern Regional Air Traffic Management Bur eau of CAAC, Guangzhou 510406)
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投稿时间:2006-08-08    修订日期:2007-01-31
中文摘要: 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。
中文关键词: MCC  飑线  下击暴流  低空风切变
Abstract:Based on meteorological observational data and FY 2C TBB,a typical mes oscale con vective complex in South China on May 6, 2006 was analyzed. It shows that the su rface cold air movement and the couple of high and low level jets are the keys t o the formation and development of MCC under the unstable and plentiful vapor co nditions. The trumpet shape landform and the temperature change of underlay als o contribute to its evolution. A squall line in MCC was monitored by using termi nal Doppler radar and AWOS, and the value of low level wind shear was calculate d to provide for Guangzhou Baiyun airport.
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刘峰,李萍,2007.华南一次典型MCC过程的成因及天气分析[J].气象,33(5):77-82.
Liu Feng,Li Ping,2007.Mechanism Analysis of a Typical MCC Event in South China[J].Meteor Mon,33(5):77-82.