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Volume 14 Issue 1

Jan.  1997

Article Contents
Article >  ADVANCES IN ATMOSPHERIC SCIENCES  > 1997 >  14(1): 41-48

Teleconnection Patterns in the Northern Hemisphere Simulated by IAP GCM

  • 1.

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


doi: 10.1007/s00376-997-0041-x

  • Based on monthly mean sea level pressure and 500 hPa height data for a 20-year period simulated by IAP 2L AGCM, teleconnection patterns in the Northern Hemisphere appearing in the model are identified and compared with observations. The results show that almost all of the observed teleconnection patterns in the Northern winter can be reproduced by the model, thus these patterns exist in the atmosphere without any external anomalies. On the other hand, the simulated teleconnection patterns are more dependent on each other than the observed, i.e., they are lack of spatial orthogonality among them, therefore, it is possible that more complex patterns will appear under the action of anomalous external factors. Besides, the simulated teleconnection patterns in summer are greatly different from those in winter, in particular, its scale in summer is much less than that in winter
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    • Manuscript History

    Manuscript received: 10 January 1997
    Manuscript revised: 10 January 1997
    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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    Teleconnection Patterns in the Northern Hemisphere Simulated by IAP GCM

    • 1. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,
    • Manuscript received: 1997-01-10
    • Manuscript revised: 1997-01-10

    Abstract: Based on monthly mean sea level pressure and 500 hPa height data for a 20-year period simulated by IAP 2L AGCM, teleconnection patterns in the Northern Hemisphere appearing in the model are identified and compared with observations. The results show that almost all of the observed teleconnection patterns in the Northern winter can be reproduced by the model, thus these patterns exist in the atmosphere without any external anomalies. On the other hand, the simulated teleconnection patterns are more dependent on each other than the observed, i.e., they are lack of spatial orthogonality among them, therefore, it is possible that more complex patterns will appear under the action of anomalous external factors. Besides, the simulated teleconnection patterns in summer are greatly different from those in winter, in particular, its scale in summer is much less than that in winter

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