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Volume 12 Issue 3

Jul.  1995

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Article >  ADVANCES IN ATMOSPHERIC SCIENCES  > 1995 >  12(3): 361-370

Numerical Study of Ural Blocking High’s Effect Upon Asian Summer Monsoon Circulation and East China Flood and Drought

  • 1.

    Nanjing Institute of Meteorology, Nanjing 210044,Nanjing Institute of Meteorology, Nanjing 210044,Fujian Meteorological Administration, Fuzhou 350001


doi: 10.1007/BF02656985

  • In terms of Kuo-Qian p-sigma incorporated coordinate five-level primitive equation spheric band (70oN-30oS) model with the Ural high’s effect introduced into it as initial and boundary conditions, study is made of the high’s in-fluence on Asian summer monsoon circulation and dryness / wetness, of eastern China bated on case contrast and control experiments. Results show that as an excitation source, the blocking high produces a SE-NW stationary wavetrain with its upper-air atnicyclonic divergent circulation (just over a lower-level trough zone) precisely over the middle to lower reaches of the Changjiang River, enhancing East Asian westerly jet, a situation that contributes to perturbation growth, causing an additional secondary meridional circulation at the jet entrance, which intensifies the updraft in the monsoon area. As such, the high’s presence and its excited steady wavetrain represent the large-scale key factors and acting mechanisms for the rainstorm over the Chamgjiang-Huaihe River catchment in the eastern part of the land.
  • [1] Yang Yan, Li Zhijin, Ji Liren, 1997: Adjoint Sensitivity Analyses on the Anomalous Circulation Features in East Asian Summer Monsoon, ADVANCES IN ATMOSPHERIC SCIENCES, 14, 111-123.  doi: 10.1007/s00376-997-0050-9
    [2] Shi Neng, Zhu Qiangen, 1993: Studies on the Northern Early Summer Teleconnection Patterns, Their Interannual Variations and Relation to Drought / Flood in China, ADVANCES IN ATMOSPHERIC SCIENCES, 10, 155-168.  doi: 10.1007/BF02919138
    [3] Li Shuanglin, Ji Liren, Lin Wantao, Ni Yunqi, 2001: The Maintenance of the Blocking over the Ural Mountains during the Second Meiyu Period in the Summer of 1998, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 87-105.  doi: 10.1007/s00376-001-0006-4
    [4] Huang Ronghui, Wu Bingyi, Sung-Gil Hong, Jai-Ho Oh, 2001: Sensitivity of Numerical Simulations of the East Asian Summer Monsoon Rainfall and Circulation to Different Cumulus Parameterization Schemes, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 23-41.  doi: 10.1007/s00376-001-0002-8
    [5] Xue Feng, 2001: Interannual to Interdecadal Variation of East Asian Summer Monsoon and its Association with the Global Atmospheric Circulation and Sea Surface Temperature, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 567-575.  doi: 10.1007/s00376-001-0045-x
    [6] Yao YAO, Wenqi ZHANG, Dehai LUO, Linhao ZHONG, Lin PEI, 2022: Seasonal Cumulative Effect of Ural Blocking Episodes on the Frequent Cold events in China during the Early Winter of 2020/21, ADVANCES IN ATMOSPHERIC SCIENCES, 39, 609-624.  doi: 10.1007/s00376-021-1100-4
    [7] Lin Chunyu, 1985: STABILIZATION OF SUMMER MONSOON IN MIDDLE AND LOWER REACHES OF THE CHANGJIANG RIVER AND SEASONAL TRANSITION OF EAST-ASIAN CIRCULATION PATTERN IN EARLY SUMMER, ADVANCES IN ATMOSPHERIC SCIENCES, 2, 376-384.  doi: 10.1007/BF02677254
    [8] Zhiyan ZUO, Renhe ZHANG, 2016: Influence of Soil Moisture in Eastern China on the East Asian Summer Monsoon, ADVANCES IN ATMOSPHERIC SCIENCES, 33, 151-163.  doi: 10.1007/s00376-015-5024-8
    [9] SUN Li, SHEN Baizhu, GAO Zongting, SUI Bo, Lesheng BAI, Sheng-Hung WANG, AN Gang, LI Jian, 2007: The Impacts of Moisture Transport of East Asian Monsoon on Summer Precipitation in Northeast China, ADVANCES IN ATMOSPHERIC SCIENCES, 24, 606-618.  doi: 10.1007/s00376-007-0606-8
    [10] HAN Jinping, WANG Huijun, 2007: Interdecadal Variability of the East Asian Summer Monsoon in an AGCM, ADVANCES IN ATMOSPHERIC SCIENCES, 24, 808-818.  doi: 10.1007/s00376-007-0808-0
    [11] Chen Qiying, Yu Yongqiang, Guo Yufu, 1997: Simulation of East Asian Summer Monsoon with IAP CGCM, ADVANCES IN ATMOSPHERIC SCIENCES, 14, 461-472.  doi: 10.1007/s00376-997-0064-3
    [12] Chen Longxun, Luo Shaohua, Shen Rugui, 1984: THE ASIAN SUMMER MONSOON AND ITS RELATIONS TO THE RAINFALL IN CHINA, ADVANCES IN ATMOSPHERIC SCIENCES, 1, 263-285.  doi: 10.1007/BF02678139
    [13] Chen Wen, Hans-F. Graf, Huang Ronghui, 2000: The Interannual Variability of East Asian Winter Monsoon and Its Relation to the Summer Monsoon, ADVANCES IN ATMOSPHERIC SCIENCES, 17, 48-60.  doi: 10.1007/s00376-000-0042-5
    [14] YAN Hongming, YANG Hui, YUAN Yuan, LI Chongyin, 2011: Relationship Between East Asian Winter Monsoon and Summer Monsoon, ADVANCES IN ATMOSPHERIC SCIENCES, 28, 1345-1356.  doi: 10.1007/s00376-011-0014-y
    [15] Zhu Jinhong, Wang Shaowu, 2001: 80a-Oscillation of Summer Rainfall over the East Part of China and East-Asian Summer Monsoon, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 1043-1051.  doi: 10.1007/s00376-007-0024-y
    [16] ZENG Gang, Wei-Chyung WANG, SUN Zhaobo, LI Zhongxian, 2011: Atmospheric Circulation Cells Associated with Anomalous East Asian Winter Monsoon, ADVANCES IN ATMOSPHERIC SCIENCES, 28, 913-926.  doi: 10.1007/s00376-010-0100-6
    [17] Congwen ZHU, Boqi LIU, Kang XU, Ning JIANG, Kai LIU, 2021: Diversity of the Coupling Wheels in the East Asian Summer Monsoon on the Interannual Time Scale: Challenge of Summer Rainfall Forecasting in China, ADVANCES IN ATMOSPHERIC SCIENCES, 38, 546-554.  doi: 10.1007/s00376-020-0199-z
    [18] FENG Juan*, CHEN Wen, 2014: Interference of the East Asian Winter Monsoon in the Impact of ENSO on the East Asian Summer Monsoon in Decaying Phases, ADVANCES IN ATMOSPHERIC SCIENCES, 31, 344-354.  doi: 10.1007/s00376-013-3118-8
    [19] Hoffman H. N. CHEUNG, Wen ZHOU, 2016: Simple Metrics for Representing East Asian Winter Monsoon Variability: Urals Blocking and Western Pacific Teleconnection Patterns, ADVANCES IN ATMOSPHERIC SCIENCES, 33, 695-705.  doi: 10.1007/s00376-015-5204-6
    [20] FU Jianjian, LI Shuanglin, 2013: The Influence of Regional SSTs on the Interdecadal Shift of the East Asian Summer Monsoon, ADVANCES IN ATMOSPHERIC SCIENCES, 30, 330-340.  doi: 10.1007/s00376-012-2062-3
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    • Manuscript History

    Manuscript received: 10 July 1995
    Manuscript revised: 10 July 1995
    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

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    Numerical Study of Ural Blocking High’s Effect Upon Asian Summer Monsoon Circulation and East China Flood and Drought

    • 1. Nanjing Institute of Meteorology, Nanjing 210044,Nanjing Institute of Meteorology, Nanjing 210044,Fujian Meteorological Administration, Fuzhou 350001
    • Manuscript received: 1995-07-10
    • Manuscript revised: 1995-07-10

    Abstract: In terms of Kuo-Qian p-sigma incorporated coordinate five-level primitive equation spheric band (70oN-30oS) model with the Ural high’s effect introduced into it as initial and boundary conditions, study is made of the high’s in-fluence on Asian summer monsoon circulation and dryness / wetness, of eastern China bated on case contrast and control experiments. Results show that as an excitation source, the blocking high produces a SE-NW stationary wavetrain with its upper-air atnicyclonic divergent circulation (just over a lower-level trough zone) precisely over the middle to lower reaches of the Changjiang River, enhancing East Asian westerly jet, a situation that contributes to perturbation growth, causing an additional secondary meridional circulation at the jet entrance, which intensifies the updraft in the monsoon area. As such, the high’s presence and its excited steady wavetrain represent the large-scale key factors and acting mechanisms for the rainstorm over the Chamgjiang-Huaihe River catchment in the eastern part of the land.

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