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Volume 2 Issue 3

Jul.  1985

Article Contents

THE INFLUENCE OF HORIZONTALLY NON-UNIFORM HEATING UPON THE DEVELOPMENT OF STRONG CONVECTIVE MESOSCALE DISTURBANCES


doi: 10.1007/BF02677251

  • It is shown by observational data and synoptic analysis that the development of strong convective echo is influenced by the horizontally non-uniform heating, such as the one caused by lake-land distribution. In this paper, a simple linear cell-convection model is established using an appropriate heating field, and the instability of heating convection is theoretically studied. It is found that the heating convection development will be unstable if the heating-caused temperature gradient dT0/dy is greater than the critical value (dT0/dy)c which is approximately 0.64℃/10 km, and that the development of convective band has a preferred width of 12.5 km. It will take 25 min for the initial disturbance to increase intensity by 10 times. All these results are in rather good agreement with the squall line process in the lake-land region of Jiangsu Province on June 8, 1979.
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    [2] Liu Ruizhi, 1986: A NUMERICAL EXPERIMENT OF CYCLOGENESIS AND THE DEVELOPMENT OF DISTURBANCES, ADVANCES IN ATMOSPHERIC SCIENCES, 3, 499-504.  doi: 10.1007/BF02657939
    [3] Y.L. McHall, 1993: Energetics Constraint for Linear Disturbances Development, ADVANCES IN ATMOSPHERIC SCIENCES, 10, 273-286.  doi: 10.1007/BF02658133
    [4] Daeun JEONG, Ki-Hong MIN, Gyuwon LEE, and Kyung-Eak KIM, 2014: A Case Study of Mesoscale Convective Band (MCB) Development and Evolution along a Quasi-stationary Front, ADVANCES IN ATMOSPHERIC SCIENCES, 31, 901-915.  doi: 10.1007/s00376-013-3089-9
    [5] Ye Weizuo, 1991: Influence of Advection on Marine PBL Development, ADVANCES IN ATMOSPHERIC SCIENCES, 8, 201-210.  doi: 10.1007/BF02658094
    [6] Jing YANG, Gaopeng LU, Ningyu LIU, Haihua CUI, Yu WANG, Morris COHEN, 2017: Analysis of a Mesoscale Convective System that Produced a Single Sprite, ADVANCES IN ATMOSPHERIC SCIENCES, 34, 258-271.  doi: 10.1007/s00376-016-6092-0
    [7] Jo-Han LEE, Dong-Kyou LEE, Hyun-Ha LEE, Yonghan CHOI, Hyung-Woo KIM, 2010: Radar Data Assimilation for the Simulation of Mesoscale Convective Systems, ADVANCES IN ATMOSPHERIC SCIENCES, 27, 1025-1042.  doi: 10.1007/s00376-010-9162-8
    [8] Na LI, Lingkun RAN, Linna ZHANG, Shouting GAO, 2017: Potential Deformation and Its Application to the Diagnosis of Heavy Precipitation in Mesoscale Convective Systems, ADVANCES IN ATMOSPHERIC SCIENCES, 34, 894-908.  doi: 10.1007/s00376-017-6282-4
    [9] Dang Renqing, Tang Xinzhang, Zhang Jiacheng, 1992: Experiments in Forecasting Mesoscale Convective Weather over Changjiang Delta, ADVANCES IN ATMOSPHERIC SCIENCES, 9, 223-230.  doi: 10.1007/BF02657512
    [10] Fan Beifen, Ye Jiadong, William R. Cotton, Gregory J. Tripoli, 1990: Numerical Simulation of Microphysics in Meso-β-Scale Convective Cloud System Associated with a Mesoscale Convective Complex, ADVANCES IN ATMOSPHERIC SCIENCES, 7, 154-170.  doi: 10.1007/BF02919153
    [11] Kong Fanyou, Qin Yu, 1993: The Vertical Transport of Air Pollutants by Convective Clouds. Part I: A Non-Reactive Cloud Transport Model, ADVANCES IN ATMOSPHERIC SCIENCES, 10, 415-427.  doi: 10.1007/BF02656966
    [12] Yifan Zhao, Xindong Peng, Xiaohan Li, Siyuan Chen, 2023: Improved Diurnal Cycle of Precipitation on Land in a Global Non-hydrostatic Model Using a Revised Deep NSAS Convective Scheme, ADVANCES IN ATMOSPHERIC SCIENCES.  doi: 10.1007/s00376-023-3121-7
    [13] HAN Bo, LU Shihua, AO Yinhuan, 2012: Development of the Convective Boundary Layer Capping with a Thick Neutral Layer in Badanjilin: Observations and Simulations, ADVANCES IN ATMOSPHERIC SCIENCES, 29, 177-192.  doi: 10.1007/s00376-011-0207-4
    [14] Wanli LI, Xiushu QIE, Shenming FU, Debin SU, Yonghai SHEN, 2016: Simulation of Quasi-Linear Mesoscale Convective Systems in Northern China: Lightning Activities and Storm Structure, ADVANCES IN ATMOSPHERIC SCIENCES, 33, 85-100.  doi: 10.1007/s00376-015-4170-3
    [15] ZHU Guofu, CHEN Shoujun, 2003: A Numerical Case Study on a Mesoscale Convective System over the Qinghai-Xizang (Tibetan) Plateau, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 385-397.  doi: 10.1007/BF02690797
    [16] Zhiwei HE, Qinghong ZHANG, Jun SUN, 2016: The Contribution of Mesoscale Convective Systems to Intense Hourly Precipitation Events during the Warm Seasons over Central East China, ADVANCES IN ATMOSPHERIC SCIENCES, 33, 1233-1239.  doi: 10.1007/s00376-016-6034-x
    [17] ZHU Guofu, CHEN Shoujun, 2003: Analysis and Comparison of Mesoscale Convective Systems over the Qinghai-Xizang (Tibetan) Plateau, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 311-322.  doi: 10.1007/BF02690789
    [18] Anjing HUANG, Gaopeng LU, Hongbo ZHANG, Feifan LIU, Yanfeng FAN, Baoyou ZHU, Jing YANG, Zhichao WANG, 2018: Locating Parent Lightning Strokes of Sprites Observed over a Mesoscale Convective System in Shandong Province, China, ADVANCES IN ATMOSPHERIC SCIENCES, 35, 1396-1414.  doi: 10.1007/s00376-018-7306-4
    [19] Zhemin TAN, Qinghong ZHANG, Xudong LIANG, Kun ZHAO, Xin XU, Lili LEI, 2023: Preface to the Special Issue on the 14th International Conference on Mesoscale Convective Systems and High-Impact Weather, ADVANCES IN ATMOSPHERIC SCIENCES, 40, 745-746.  doi: 10.1007/s00376-023-2022-0
    [20] LIU Dongxia, QIE Xiushu, XIONG Yajun, FENG Guili, 2011: Evolution of the Total Lightning Activity in a Leading-Line and Trailing Stratiform Mesoscale Convective System over Beijing, ADVANCES IN ATMOSPHERIC SCIENCES, 28, 866-878.  doi: 10.1007/s00376-010-0001-8

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Manuscript History

Manuscript received: 10 July 1985
Manuscript revised: 10 July 1985
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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THE INFLUENCE OF HORIZONTALLY NON-UNIFORM HEATING UPON THE DEVELOPMENT OF STRONG CONVECTIVE MESOSCALE DISTURBANCES

  • 1. DepartmentofMeteorology,NanjingUniversity,Nanjing,InstituteofMeteorology,thePLAAirForce.Nanjing

Abstract: It is shown by observational data and synoptic analysis that the development of strong convective echo is influenced by the horizontally non-uniform heating, such as the one caused by lake-land distribution. In this paper, a simple linear cell-convection model is established using an appropriate heating field, and the instability of heating convection is theoretically studied. It is found that the heating convection development will be unstable if the heating-caused temperature gradient dT0/dy is greater than the critical value (dT0/dy)c which is approximately 0.64℃/10 km, and that the development of convective band has a preferred width of 12.5 km. It will take 25 min for the initial disturbance to increase intensity by 10 times. All these results are in rather good agreement with the squall line process in the lake-land region of Jiangsu Province on June 8, 1979.

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