Advances in Atmospheric Sciences

, Volume 22, Issue 4, pp 479–495 | Cite as

Evaluation of East Asian climatology as simulated by seven coupled models

  • Jiang Dabang
  • Wang Huijun
  • Lang Xianmei


Using observation and reanalysis data throughout 1961–1990, the East Asian surface air temperature, precipitation and sea level pressure climatology as simulated by seven fully coupled atmosphere-ocean models, namely CCSR/NIES, CGCM2, CSIRO-Mk2, ECHAM4/OPYC3, GFDL-R30, HadCM3, and NCAR-PCM, are systematically evaluated in this study. It is indicated that the above models can successfully reproduce the annual and seasonal surface air temperature and precipitation climatology in East Asia, with relatively good performance for boreal autumn and annual mean. The models’ ability to simulate surface air temperature is more reliable than precipitation. In addition, the models can dependably capture the geographical distribution pattern of annual, boreal winter, spring and autumn sea level pressure in East Asia. In contrast, relatively large simulation errors are displayed when simulated boreal summer sea level pressure is compared with reanalysis data in East Asia. It is revealed that the simulation errors for surface air temperature, precipitation and sea level pressure are generally large over and around the Tibetan Plateau. No individual model is best in every aspect. As a whole, the ECHAM4/OPYC3 and HadCM3 performances are much better, whereas the CGCM2 is relatively poorer in East Asia. Additionally, the seven-model ensemble mean usually shows a relatively high reliability.

Key words

coupled model East Asian climatology evaluation 


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© Advances in Atmospheric Sciences 2003

Authors and Affiliations

  1. 1.Nansen-Zhu International Research Center, Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing
  2. 2.Key Laboratory of Regional Climate-Environment Research for Temperate East AsiaChinese Academy of SciencesBeijing

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