Advances in Atmospheric Sciences

, Volume 20, Issue 6, pp 859–874 | Cite as

Atmospheric anomalies related to interdecadal variability of SST in the North Pacific

  • Li Chongyin
  • Xian Peng


Anomalous patterns of the atmospheric circulation and climate are studied corresponding to the two basic interdecadal variation modes of sea surface temperature (SST) in the North Pacific, namely, the 25–35-year mode and the 7–10-year mode. Results clearly indicate that corresponding to the positive and negative phases of the interdecadal modes of SST anomaly (SSTA) in the North Pacific, the anomalous patterns of the atmospheric circulation and climate are approximately out of phase, fully illustrating the important role of the interdecadal modes of SST. Since the two interdecadal modes of SSTA in the North Pacific have similar horizontal structures, their impacts on the atmospheric circulation and climate are also analogous. The impact of the interdecadal modes of the North Pacific SST on the atmospheric circulation is barotropic at middle latitudes and baroclinic in tropical regions.

Key words

anomaly of atmospheric circulation and climate North Pacific sea surface temperature interdecadal mode 


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© Advances in Atmospheric Sciences 2003

Authors and Affiliations

  1. 1.LASG, Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing

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