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Volume 20 Issue 3

May  2003

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Article >  ADVANCES IN ATMOSPHERIC SCIENCES  > 2003 >  20(3): 349-356

A Dynamic Study of Ekman Characteristics by Using 1998 SCSMEX and TIPEX Boundary Layer Data

  • 1.

    Chinese Academy of Meteorological Sciences, Beijing 100081,Chinese Academy of Meteorological Sciences, Beijing 100081,Chinese Academy of Meteorological Sciences, Beijing 100081


doi: 10.1007/BF02690793

  • A dynamic study on Ekman characteristics by using 1998 SCSMEX and TIPEX boundary layerdata is made. The results are as follows: (1) Similar dynamical Ekman characteristics are observed in theTibetan Plateau and in the South China Sea and its surrounding area. (2) The thickness of the boundarylayer is about 2250 m over the Tibetan Plateau, and considering its variation, the thickness could be up to2250-2750 m. In the tropical southwest Pacific, the thickness of the boundary layer is about 2000 m, andthe variation is smaller; a smaller thickness of the boundary layer is in the plain area of the Bohai Sea.(3) Because of the difference in elevation between the Tibetan Plateau and the tropical ocean area, theinfluence of the boundary layer on the atmosphere is quite different although the two areas have almostthe same thickness for the boundary layer, the height where the friction forcing occurs is quite different.(4) The vertical structure of turbulence friction is quite different in the Plateau and in the tropical oceanarea. Calculations by 1998 SCSMEX and TIPEX boundary layer data indicate that even in the lowestlevels, eddy viscosity in the Tibetan Plateauan can be 2.3 times than in the tropical ocean area.
  • [1] Chen Longxun, Zhu Congwen, Wang Wen, Zhang Peiqun, 2001: Analysis of the Characteristics of 30-60 Day Low-Frequency Oscillation over Asia during 1998 SCSMEX, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 623-638.  doi: 10.1007/s00376-001-0050-0
    [2] LI Wei, CHEN Longxun, 2003: Characteristics of the Seasonal Variation of the Surface Total Heating over the Tibetan Plateau and Its Surrounding Area in Summer 1998 and Its Relationship with the Convection over the Subtropical Area of the Western Pacific, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 343-348.  doi: 10.1007/BF02690792
    [3] WANG Jizhi, YANG Yuanqin, XU Xiangde, ZHANG Guangzhi, 2003: A Monitoring Study of the 1998 Rainstorm along the Yangtze River of China by Using TIPEX Data, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 425-436.  doi: 10.1007/BF02690800
    [4] LI Maoshan, MA Yaoming, MA Weiqiang, HU Zeyong, ISHIKAWA Hirohiko, Zhongbo SU, SUN Fanglin, 2006: Analysis of Turbulence Characteristics over the Northern Tibetan Plateau Area, ADVANCES IN ATMOSPHERIC SCIENCES, 23, 579-585.  doi: 10.1007/s00376-006-0579-z
    [5] Y. BHAVANI KUMAR, C. NAGESWARA RAJU, M. KRISHNAIAH, 2006: Indo-Japanese Lidar Observations of the Tropical Middle Atmosphere During 1998 and 1999, ADVANCES IN ATMOSPHERIC SCIENCES, 23, 711-725.  doi: 10.1007/s00376-006-0711-0
    [6] Xiaotong ZHU, Qingqing LI, Jinhua YU, Dan WU, Kai YAO, 2018: Geometric Characteristics of Tropical Cyclone Eyes before Landfall in South China Based on Ground-Based Radar Observations, ADVANCES IN ATMOSPHERIC SCIENCES, 35, 592-603.  doi: 10.1007/s00376-017-7144-9
    [7] Ni Yunqi, Zhang Qin, 1996: Low Frequency Characteristics of Tropical Pacific Wind Stress Anomalies in Observations and Simulations from a Simple and a Comprehensive Models, ADVANCES IN ATMOSPHERIC SCIENCES, 13, 445-460.  doi: 10.1007/BF03342036
    [8] YAO Zhanyu, XU Chenhai, YUAN Jian, LI Wanbiao, ZHU Yuanjing, ZHAO Bolin, 2003: Estimations of Precipitable Water and Its Characteristics during the HUBEX/IOP 1998, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 219-226.  doi: 10.1007/s00376-003-0007-6
    [9] Liu Huizhi, Zhang Hongsheng, Bian Lin＇gen, Chen Jiayi, Zhou Mingyu, Xu Xiangde, Li Shiming, Zhao Yijun, 2002: Characteristics of Micrometeorology in the Surface Layer in the Tibetan Plateau, ADVANCES IN ATMOSPHERIC SCIENCES, 19, 73-88.  doi: 10.1007/s00376-002-0035-7
    [10] Duan Tingyang, Elmar R. Reiter, 1990: Some Characteristics of Cumulus Convection over the Tibetan Plateau, ADVANCES IN ATMOSPHERIC SCIENCES, 7, 87-97.  doi: 10.1007/BF02919171
    [11] XU Xiangde, ZHOU Li, ZHANG Shengjun, MIAO Qiuju, 2003: Characteristics of the Correlation between Regional Water Vapor Transport along with the Convective Action and Variation of the Pacific Subtropical High in 1998, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 269-283.  doi: 10.1007/s00376-003-0013-8
    [12] FU Yunfei, LIN Yihua, Guosheng LIU, WANG Qiang, 2003: Seasonal Characteristics of Precipitation in 1998 over East Asia as Derived from TRMM PR, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 511-529.  doi: 10.1007/BF02915495
    [13] Yahao WU, Liping LIU, 2017: Statistical Characteristics of Raindrop Size Distribution in the Tibetan Plateau and Southern China, ADVANCES IN ATMOSPHERIC SCIENCES, 34, 727-736.  doi: 10.1007/s00376-016-5235-7
    [14] Yilun CHEN, Aoqi ZHANG, Yunfei FU, Shumin CHEN, Weibiao LI, 2021: Morphological Characteristics of Precipitation Areas over the Tibetan Plateau Measured by TRMM PR, ADVANCES IN ATMOSPHERIC SCIENCES, 38, 677-689.  doi: 10.1007/s00376-020-0233-1
    [15] ZHOU Feifan, MU Mu, 2011: The Impact of Verification Area Design on Tropical Cyclone Targeted Observations Based on the CNOP Method, ADVANCES IN ATMOSPHERIC SCIENCES, 28, 997-1010.  doi: 10.1007/s00376-011-0120-x
    [16] LIU Qinyu, WEN Na, YU Yongqiang, 2006: The Role of the Kuroshio in the Winter North Pacific Ocean-Atmosphere Interaction: Comparison of a Coupled Model and Observations, ADVANCES IN ATMOSPHERIC SCIENCES, 23, 181-189.  doi: 10.1007/s00376-006-0181-4
    [17] Zhang Mingli, Garrett G. Campbell, 1992: Comparison of Satellite and Ship Observations for Total Cloud Amount, ADVANCES IN ATMOSPHERIC SCIENCES, 9, 63-72.  doi: 10.1007/BF02656931
    [18] LIU Yanju, DING Yihui, SONG Yafang, ZHANG Jin, 2009: Climatological Characteristics of the Moisture Budget and Their Anomalies over the Joining Area of Asia and the Indian-Pacific Ocean, ADVANCES IN ATMOSPHERIC SCIENCES, 26, 642-655.  doi: 10.1007/s00376-009-9010-x
    [19] YAN Changxiang, ZHU Jiang, ZHOU Guangqing, 2007: Impacts of XBT, TAO, Altimetry and ARGO Observations on the Tropical Pacific Ocean Data ssimilationImpacts of XBT, TAO, Altimetry and ARGO Observations on the Tropical Pacific Ocean Data Assimilation, ADVANCES IN ATMOSPHERIC SCIENCES, 24, 383-398.  doi: 10.1007/s00376-007-0383-4
    [20] Dongxia LIU, Xiushu QIE, Yichen CHEN, Zhuling SUN, Shanfeng YUAN, 2020: Investigating Lightning Characteristics through a Supercell Storm by Comprehensive Coordinated Observations over North China, ADVANCES IN ATMOSPHERIC SCIENCES, 37, 861-872.  doi: 10.1007/s00376-020-9264-x
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    • Manuscript History

    Manuscript received: 10 May 2003
    Manuscript revised: 10 May 2003
    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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    A Dynamic Study of Ekman Characteristics by Using 1998 SCSMEX and TIPEX Boundary Layer Data

    • 1. Chinese Academy of Meteorological Sciences, Beijing 100081,Chinese Academy of Meteorological Sciences, Beijing 100081,Chinese Academy of Meteorological Sciences, Beijing 100081
    • Manuscript received: 2003-05-10
    • Manuscript revised: 2003-05-10

    Abstract: A dynamic study on Ekman characteristics by using 1998 SCSMEX and TIPEX boundary layerdata is made. The results are as follows: (1) Similar dynamical Ekman characteristics are observed in theTibetan Plateau and in the South China Sea and its surrounding area. (2) The thickness of the boundarylayer is about 2250 m over the Tibetan Plateau, and considering its variation, the thickness could be up to2250-2750 m. In the tropical southwest Pacific, the thickness of the boundary layer is about 2000 m, andthe variation is smaller; a smaller thickness of the boundary layer is in the plain area of the Bohai Sea.(3) Because of the difference in elevation between the Tibetan Plateau and the tropical ocean area, theinfluence of the boundary layer on the atmosphere is quite different although the two areas have almostthe same thickness for the boundary layer, the height where the friction forcing occurs is quite different.(4) The vertical structure of turbulence friction is quite different in the Plateau and in the tropical oceanarea. Calculations by 1998 SCSMEX and TIPEX boundary layer data indicate that even in the lowestlevels, eddy viscosity in the Tibetan Plateauan can be 2.3 times than in the tropical ocean area.

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