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Volume 17 Issue 4

Oct.  2000

Article Contents
Article >  ADVANCES IN ATMOSPHERIC SCIENCES  > 2000 >  17(4): 503-518

Climatic Features Related to Eastern China Summer Rainfalls in the NCAR CCM3

  • 1.

    LASG, Institute of Atmospheric Physics. Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics. Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics. Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics. Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics. Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics. Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics. Chinese Academy of Sciences, Beijing 100029


doi: 10.1007/s00376-000-0014-9

  • The climatic features associated with the eastern China summer rainfalls (ECSR) are examined in the National Center for Atmospheric Research (NCAR) Community Climate Model Version 3 (CCM3) of the United States of America, and run with time-evolving sea surface temperature (SST) from September 1978 to August 1993. The CCM3 is shown to capture the salient seasonal features of ECSR. As many other cli-mate models, however, there are some unrealistic projections of ECSR in the CCM3. The most unacceptable one is the erroneously intensified precipitation center on the east periphery of the Tibetan Plateau and its northeastward extension.The artificial strong rainfall center is fairly assessed by comparing with the products of the station rainfall data. Xie and Arkin (1996) rainfall data and the European Centre for Medium-Range Weather Fore-casts (ECMWF) reanalysis (Gibson et al., 1997). The physical processes involved in the formation of the rainfall center are discussed. The preliminary conclusion reveals that it is the overestimated sensible heating over and around the Tibetan Plateau in the CCM3 that causes the heavy rainfall. The unreal strong surface sensible heating over the southeast and northeast of Tibetan Plateau favors the forming of a powerful subtropical anticyclone over the eastern China. The fake enclosed subtropical anticyclone center makes the moist southwest wind festen on the east periphery of the Tibetan Plateau and extend to its northeast. In the southeast coast of China, locating on the southeast side of the subtropical anticyclone, the southwest mon-soon is decreased and even replaced by northeast wind in some cases. In the CCM3, therefore, the precipita-tion is exaggerated on the east periphery of the Tibetan Plateau and its northeast extension and is underestimated in the southeast coast of China.
  • [1] Yuanchang DONG, Guoping LI, Xiaolin XIE, Long YANG, Peiwen ZHANG, Bo ZENG, 2024: Mechanism of Diabatic Heating on Precipitation and the Track of a Tibetan Plateau Vortex over the Eastern Slope of the Tibetan Plateau, ADVANCES IN ATMOSPHERIC SCIENCES, 41, 155-172.  doi: 10.1007/s00376-023-2275-7
    [2] LIU Yimin, WU Guoxiong, 2004: Progress in the Study on the Formation of the Summertime Subtropical Anticyclone, ADVANCES IN ATMOSPHERIC SCIENCES, 21, 322-342.  doi: 10.1007/BF02915562
    [3] CHEN Feng, and XIE Zhenghui, 2013: An evaluation of RegCM3_CRES for regional climate modeling in China, ADVANCES IN ATMOSPHERIC SCIENCES, 30, 1187-1200.  doi: 10.1007/s00376-012-2114-8
    [4] Yu ZHAO, Anmin DUAN, Guoxiong WU, 2018: Interannual Variability of Late-spring Circulation and Diabatic Heating over the Tibetan Plateau Associated with Indian Ocean Forcing, ADVANCES IN ATMOSPHERIC SCIENCES, 35, 927-941.  doi: 10.1007/s00376-018-7217-4
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    [8] ZUO Jinqing, LI Weijing, SUN Chenghu, XU Li, and REN Hong-Li, 2013: Impact of the North Atlantic sea surface temperature tripole on the East Asian summer monsoon, ADVANCES IN ATMOSPHERIC SCIENCES, 30, 1173-1186.  doi: 10.1007/s00376-012-2125-5
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    [13] WEN Xinyu, ZHOU Tianjun, WANG Shaowu, WANG Bin, WAN Hui, LI Jian, 2007: Performance of a Reconfigured Atmospheric General Circulation Model at Low Resolution, ADVANCES IN ATMOSPHERIC SCIENCES, 24, 712-728.  doi: 10.1007/s00376-007-0712-7
    [14] Lingkun RAN, Changsheng CHEN, 2016: Diagnosis of the Forcing of Inertial-gravity Waves in a Severe Convection System, ADVANCES IN ATMOSPHERIC SCIENCES, 33, 1271-1284.  doi: 10.1007/s00376-016-5292-y
    [15] Chanh Q. KIEU, Da-Lin ZHANG, 2012: Is the Isentropic Surface Always Impermeable to the Potential Vorticity Substance?, ADVANCES IN ATMOSPHERIC SCIENCES, 29, 29-35.  doi: 10.1007/s00376-011-0227-0
    [16] Li Weiping, Theo Chidiezie Chineke, Liu Xin, Wu Guoxiong, 2001: Atmospheric Diabatic Heating and Summertime Circulation in Asia-Africa Area, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 257-269.  doi: 10.1007/s00376-001-0018-0
    [17] Luo Dehai, Ji Liren, 1989: The Role of Topography and Diabatic Heating in the Formation of Dipole Blocking in the Atmosphere, ADVANCES IN ATMOSPHERIC SCIENCES, 6, 173-185.  doi: 10.1007/BF02658014
    [18] Yawen DUAN, Peili WU, Xiaolong CHEN, Zhuguo MA, 2018: Assessing Global Warming Induced Changes in Summer Rainfall Variability over Eastern China Using the Latest Hadley Centre Climate Model HadGEM3-GC2, ADVANCES IN ATMOSPHERIC SCIENCES, 35, 1077-1093.  doi: 10.1007/s00376-018-7264-x
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    • Manuscript History

    Manuscript received: 10 October 2000
    Manuscript revised: 10 October 2000
    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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    Climatic Features Related to Eastern China Summer Rainfalls in the NCAR CCM3

    • 1. LASG, Institute of Atmospheric Physics. Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics. Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics. Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics. Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics. Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics. Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics. Chinese Academy of Sciences, Beijing 100029
    • Manuscript received: 2000-10-10
    • Manuscript revised: 2000-10-10

    Abstract: The climatic features associated with the eastern China summer rainfalls (ECSR) are examined in the National Center for Atmospheric Research (NCAR) Community Climate Model Version 3 (CCM3) of the United States of America, and run with time-evolving sea surface temperature (SST) from September 1978 to August 1993. The CCM3 is shown to capture the salient seasonal features of ECSR. As many other cli-mate models, however, there are some unrealistic projections of ECSR in the CCM3. The most unacceptable one is the erroneously intensified precipitation center on the east periphery of the Tibetan Plateau and its northeastward extension.The artificial strong rainfall center is fairly assessed by comparing with the products of the station rainfall data. Xie and Arkin (1996) rainfall data and the European Centre for Medium-Range Weather Fore-casts (ECMWF) reanalysis (Gibson et al., 1997). The physical processes involved in the formation of the rainfall center are discussed. The preliminary conclusion reveals that it is the overestimated sensible heating over and around the Tibetan Plateau in the CCM3 that causes the heavy rainfall. The unreal strong surface sensible heating over the southeast and northeast of Tibetan Plateau favors the forming of a powerful subtropical anticyclone over the eastern China. The fake enclosed subtropical anticyclone center makes the moist southwest wind festen on the east periphery of the Tibetan Plateau and extend to its northeast. In the southeast coast of China, locating on the southeast side of the subtropical anticyclone, the southwest mon-soon is decreased and even replaced by northeast wind in some cases. In the CCM3, therefore, the precipita-tion is exaggerated on the east periphery of the Tibetan Plateau and its northeast extension and is underestimated in the southeast coast of China.

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