Advances in Atmospheric Sciences

, Volume 19, Issue 1, pp 169–190 | Cite as

A flexible coupled ocean-atmosphere general circulation model

  • Yu Yongqiang
  • Yu Rucong
  • Zhang Xuehong
  • Liu Hailong
Advances in Atmospheric Sciences


Based on the National Center for Atmospheric Research (NCAR) Climate System Model version 1 (CSM-1), a Flexible coupled General Circulation Model version 0 (FGCM-0) is developed in this study through replacing CSM-1’s oceanic component model with IAP L30T63 global oceanic general circulation model and some necessary modifications of the other component models. After the coupled model FGCM-0 is spun up for dozens of years, it has been run for 60 years without flux correction. The model does not only show the reasonable long-term mean climatology, but also reproduce a lot of features of the interannual variability of climate, e.g. the ENSO-like events in the tropical Pacific Ocean and the dipole mode pattern in the tropical Indian Ocean. Comparing FGCM-0 with the NCAR CSM-1, some common features are found, e.g. the overestimation of sea ice in the North Pacific and the simulated double ITCZ etc. The further analyses suggest that they may be attributed to errors in the atmospheric model.

Key words

Coupled model ENSO Climate drift 


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Copyright information

© Advances in Atmospheric Sciences 2002

Authors and Affiliations

  • Yu Yongqiang
    • 1
  • Yu Rucong
    • 1
  • Zhang Xuehong
    • 1
  • Liu Hailong
    • 1
  1. 1.LASG, Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing

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