ENVIRONMENT AND CONDITIONS OF MESOSCALE CONVETIVE COMPLEX DEVELOPMENT IN NORTH CHINA PLAIN

Lu Yanbin; Zheng Yongg uang; Li Yaping; Tao Zuyu

Vol.13, NO.4, 2002

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2002 > 13(4): 406-412

Lu Yanbin, Zheng Yongg uang, Li Yaping, et al. Environment and conditions of mesoscale convetive complex development in North China Plain. J Appl Meteor Sci, 2002, 13(4): 406-412.

Citation:

Lu Yanbin, Zheng Yongg uang, Li Yaping, et al. Environment and conditions of mesoscale convetive complex development in North China Plain. J Appl Meteor Sci, 2002, 13(4): 406-412.

Lu Yanbin, Zheng Yongg uang, Li Yaping, et al. Environment and conditions of mesoscale convetive complex development in North China Plain. J Appl Meteor Sci, 2002, 13(4): 406-412.

Citation:

Lu Yanbin, Zheng Yongg uang, Li Yaping, et al. Environment and conditions of mesoscale convetive complex development in North China Plain. J Appl Meteor Sci, 2002, 13(4): 406-412.

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ENVIRONMENT AND CONDITIONS OF MESOSCALE CONVETIVE COMPLEX DEVELOPMENT IN NORTH CHINA PLAIN

1.
Tianjin Air Traf fic Control Station of CAAC, Tianjin 300300
2.
State Key Laboratory for Severe Storm Research, Pek ing University, Beijing 100871

Received Date: 2001-01-12
Rev Recd Date: 2001-03-13
Publish Date: 2002-08-31

Abstract

Abstract

The Mesoscale Convective Complex (MCC) can generate the torrential rainfall in the North China Plain. The composite synoptic environment before MCC genesis is obtained based on three typical MCCs selected from the general investigation of MCCs in the North China plain. Through diagnoses and analysis, the conditions of MCC development over North China plain are investigated. The results reveal that the synoptic environment of MCC development in North China plain is neither the same as in South China nor in North American. Since MCCs often occur at night, the results about the environment and conditions for MCC development are helpful in forecasting whether MCC will occur in the early evening of the day over the North China plain.
- Mesoscale Convective Complex (MCC);
- Composite analysis;
- Development conditions

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References(10)

Figures and Tables

图 1 合成的卫星红外云图的平均TBB分布 (单位:℃)

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图 2 MCC生成前合成的海平面气压场、测站风

(单位:hPa，等值线间隔1，粗线表示地面冷锋)

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图 3 MCC生成前合成的高低空流场、等风速线

(a)200 hPa (等值线间隔5，阴影区风速>15 m/s)(b)850 hPa (等值线间隔2，阴影区风速>8 m/s)(点线为流线；细实线为等风速线，单位:m/s)

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图 4 MCC生成前的稳定度条件和水汽条件

(a) 合成的对流稳定度θ_{e (500-850)}(单位:K_t值线间隔2）(b) 合成的850 hPa比湿场（单位:g/kg，值线间隔1）(c) 合成的水汽通置场 (矢线) 和水汽通量散度 (等值线间隔0.5×10^-7g/(s·hPa·cm³))

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图 5 MCC生成前的高低空散度场和涡度平流场

(a) 850 hPa散度场 (单位:10^-6s^-1，等值线间隔2) (b) 200 hPa散度场（间隔4）(c) 300 hPa涡度平流场 (单位:10^-10s^-2，等值线间隔4)

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表 1 MCC个例概况

References

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