NUMERICAL SIMULATION OF THE GENERATION OF MESOSCALE CONVECTTVE SYSTEMS IN LARGE－SCALE ENVIRONMENT

Xia Daqing; Zheng Liangjie

doi:10.1007/BF02678656

Impact Factor: 5.8

Volume 3 Issue 3

Jul. 1986

Article Contents

Article > ADVANCES IN ATMOSPHERIC SCIENCES > 1986 > 3(3): 360-370

NUMERICAL SIMULATION OF THE GENERATION OF MESOSCALE CONVECTTVE SYSTEMS IN LARGE－SCALE ENVIRONMENT

1.
Institute of Meteorological Research, Headquarters of the General Staff, PLA, Beijing,Institute of Meteorological Research, Headquarters of the General Staff, PLA, Beijing

doi: 10.1007/BF02678656

Abstract
References
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Abstract:
The generation of mesoscale convective systems is simulated by a 7-level primitive equation model. The large-scale parts of observed, data at 1200 Z June 11, 1983, which are obtained by low-pass filter, are used as the initial data. The results show that the generation of mesoscale convective systems can be simulated from fields of meteorological variables on the large-scale background. When the low-level south-west jet stream is very moist, mesoscale convective systems can develop ahead of the wind speed maximum in the warm sector of Jiang-Huai (Changjiang-Huaihe Rivers) cyclone, where the potential stability tends to remain negative. Furthermore, they are similar to the mesoscale convective complex (MCC), which appears frequently in the central part of the United States during the warm season (March to September), in dynamical and thermal structure, distribution of precipitation and the process of generation and development.
References

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Manuscript History

Manuscript received: 10 July 1986

Manuscript revised: 10 July 1986

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

NUMERICAL SIMULATION OF THE GENERATION OF MESOSCALE CONVECTTVE SYSTEMS IN LARGE－SCALE ENVIRONMENT

1. Institute of Meteorological Research, Headquarters of the General Staff, PLA, Beijing,Institute of Meteorological Research, Headquarters of the General Staff, PLA, Beijing

Manuscript received: 1986-07-10
Manuscript revised: 1986-07-10

Abstract: The generation of mesoscale convective systems is simulated by a 7-level primitive equation model. The large-scale parts of observed, data at 1200 Z June 11, 1983, which are obtained by low-pass filter, are used as the initial data. The results show that the generation of mesoscale convective systems can be simulated from fields of meteorological variables on the large-scale background. When the low-level south-west jet stream is very moist, mesoscale convective systems can develop ahead of the wind speed maximum in the warm sector of Jiang-Huai (Changjiang-Huaihe Rivers) cyclone, where the potential stability tends to remain negative. Furthermore, they are similar to the mesoscale convective complex (MCC), which appears frequently in the central part of the United States during the warm season (March to September), in dynamical and thermal structure, distribution of precipitation and the process of generation and development.