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Life Cycles of Blocking Flows Associated with Synoptic-Scale Eddies: Observed Results and Numerical Experiments


doi: 10.1007/s00376-002-0003-2

  • An observational study is presented to confirm that the life cycle of blocking associated with synoptic-scale eddies is a transfer process between dispersion and nondispersion. In addition, numerical experiments are conducted. It is found that the synoptic-scale eddies seem to play a dominant role in the amplification of blocking, while the topography effect appears to play a phase-locking role. At the same time,the synoptic eddies tend to split into two branches during the onset of blocking. This supports the observational results obtained.
  • [1] Yao YAO, Dehai LUO, 2018: An Asymmetric Spatiotemporal Connection between the Euro-Atlantic Blocking within the NAO Life Cycle and European Climates, ADVANCES IN ATMOSPHERIC SCIENCES, 35, 796-812.  doi: 10.1007/s00376-017-7128-9
    [2] Luo Dehai, Li Jianping, 2000: Barotropic Interaction between Planetary- and Synoptic-Scale Waves during the Life Cycles of Blockings, ADVANCES IN ATMOSPHERIC SCIENCES, 17, 649-670.  doi: 10.1007/s00376-000-0026-5
    [3] Debashis NATH, CHEN Wen, WANG Lin, and MA Yin, 2014: Planetary Wave Reflection and Its Impact on Tropospheric Cold Weather over Asia during January 2008, ADVANCES IN ATMOSPHERIC SCIENCES, 31, 851-862.  doi: 10.1007/s00376-013-3195-8
    [4] Dorina CHYI, Zuowei XIE, Ning SHI, Pinwen GUO, Huijun WANG, 2020: Wave-Breaking Features of Blocking over Central Siberia and Its Impacts on the Precipitation Trend over Southeastern Lake Baikal, ADVANCES IN ATMOSPHERIC SCIENCES, 37, 75-89.  doi: 10.1007/s00376-019-9048-3
    [5] Debashis NATH, Wen CHEN, 2016: Impact of Planetary Wave Reflection on Tropospheric Blocking over the Urals-Siberia Region in January 2008, ADVANCES IN ATMOSPHERIC SCIENCES, 33, 309-318.  doi: 10.1007/s00376-015-5052-4
    [6] Mozheng WEI, Jorgen S. FREDERIKSEN, 2005: Finite-Time Normal Mode Disturbances and Error Growth During Southern Hemisphere Blocking, ADVANCES IN ATMOSPHERIC SCIENCES, 22, 69-89.  doi: 10.1007/BF02930871
    [7] LUO Dehai, LIU Jinting, LI Jianping, 2010: Interaction between Planetary-Scale Diffluent Flow and Synoptic-Scale Waves During the Life Cycle of Blocking, ADVANCES IN ATMOSPHERIC SCIENCES, 27, 807-831.  doi: 10.1007/s00376-009-9074-7
    [8] Cholaw BUEH, Jingbei PENG, Dawei LIN, Bomin CHEN, 2022: On the Two Successive Supercold Waves Straddling the End of 2020 and the Beginning of 2021, ADVANCES IN ATMOSPHERIC SCIENCES, 39, 591-608.  doi: 10.1007/s00376-021-1107-x
    [9] DIAO Yina, FENG Guolin, LIU Shida, LIU Shikuo, LUO Dehai, HUANG Sixun, LU Weisong, CHOU Jifan, 2004: Review of the Study of Nonlinear Atmospheric Dynamics in China (1999-2002), ADVANCES IN ATMOSPHERIC SCIENCES, 21, 399-406.  doi: 10.1007/BF02915567
    [10] DING Ruiqiang, FENG Guolin, LIU Shida, LIU Shikuo, HUANG Sixun, FU Zuntao, 2007: Nonlinear Atmospheric and Climate Dynamics in China (2003--2006): A Review, ADVANCES IN ATMOSPHERIC SCIENCES, 24, 1077-1085.  doi: 10.1007/s00376-007-1077-7
    [11] HAN Zhe, LI Shuanglin, MU Mu, 2011: The Role of Warm North Atlantic SST in the Formation of Positive Height Anomalies over the Ural Mountains during January 2008, ADVANCES IN ATMOSPHERIC SCIENCES, 28, 246-256.  doi: 10.1007/s00376-010-0069-1
    [12] Yao HA, Zhong ZHONG, Haikun ZHAO, Yimin ZHU, Yao YAO, Yijia HU, 2022: A Climatological Perspective on Extratropical Synoptic-Scale Transient Eddy Activity Response to Western Pacific Tropical Cyclones, ADVANCES IN ATMOSPHERIC SCIENCES, 39, 333-343.  doi: 10.1007/s00376-021-0375-9
    [13] SONG Fengfei, and ZHOU Tianjun, 2013: FGOALS-s2 Simulation of Upper-level Jet Streams over East Asia: Mean State Bias and Synoptic-scale Transient Eddy Activity, ADVANCES IN ATMOSPHERIC SCIENCES, 30, 739-753.  doi: 10.1007/s00376-012-2212-7
    [14] Xingyan ZHOU, Riyu LU, Guanghua CHEN, Liang WU, 2018: Interannual Variations in Synoptic-Scale Disturbances over the Western North Pacific, ADVANCES IN ATMOSPHERIC SCIENCES, 35, 507-517.  doi: 10.1007/s00376-017-7143-x
    [15] Dehai LUO, Binhe LUO, Wenqi ZHANG, 2023: A Perspective on the Evolution of Atmospheric Blocking Theories: From Eddy-Mean flow Interaction to Nonlinear Multiscale Interaction, ADVANCES IN ATMOSPHERIC SCIENCES, 40, 553-569.  doi: 10.1007/s00376-022-2194-z
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    [17] C. H. So, Johnny C. L. Chan, 1997: Regional and Synoptic-scale Features Associated with Inactive Periods of the Summer Monsoon over South China, ADVANCES IN ATMOSPHERIC SCIENCES, 14, 223-230.  doi: 10.1007/s00376-997-0021-1
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    [19] Zhu Zhengxin, Xiao Jie, 1986: NUMERICAL EXPERIMENTS ON DYNAMIC MECHANISM OF BLOCKING, ADVANCES IN ATMOSPHERIC SCIENCES, 3, 105-114.  doi: 10.1007/BF02680049
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Manuscript History

Manuscript received: 10 July 2002
Manuscript revised: 10 July 2002
通讯作者: 陈斌, bchen63@163.com
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Life Cycles of Blocking Flows Associated with Synoptic-Scale Eddies: Observed Results and Numerical Experiments

  • 1. Department of Atmospheric and Oceanic Sciences, Oceanic University of Qingdao,LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,Department of Atmospheric and Oceanic Sciences, Ocean University of Qingdao, Qingdao, 266003

Abstract: An observational study is presented to confirm that the life cycle of blocking associated with synoptic-scale eddies is a transfer process between dispersion and nondispersion. In addition, numerical experiments are conducted. It is found that the synoptic-scale eddies seem to play a dominant role in the amplification of blocking, while the topography effect appears to play a phase-locking role. At the same time,the synoptic eddies tend to split into two branches during the onset of blocking. This supports the observational results obtained.

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