Decadal/interdecadal variations of the ocean temperature and its impacts on climate

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Chongyin Li
  • Wen Zhou
  • Xiaolong Jia
  • Xin Wang

Detail(s)

Original languageEnglish
Pages (from-to)964-981
Journal / PublicationAdvances in Atmospheric Sciences
Volume23
Issue number6
Publication statusPublished - Nov 2006
Externally publishedYes

Abstract

Decadal/interdecadal climate variability is an important research focus of the CLIVAR Program and has been paid more attention. Over recent years, a lot of studies in relation to interdecadal climate variations have been also completed by Chinese scientists. This paper presents an overview of some advances in the study of decadal/interdecadal variations of the ocean temperature and its climate impacts, which includes interdecadal climate variability in China, the interdecadal modes of sea surface temperature (SST) anomalies in the North Pacific, and in particular, the impacts of interdecadal SST variations on the Asian monsoon rainfall. As summarized in this paper, some results have been achieved by using climate diagnostic studies of historical climatic datasets. Two fundamental interdecadal SST variability modes (7-10-years mode and 25-35-years mode) have been identified over the North Pacific associated with different anomalous patterns of atmospheric circulation. The southern Indian Ocean dipole (SIOD) shows a major feature of interdecadal variation, with a positive (negative) phase favoring a weakened (enhanced) Asian summer monsoon in the following summer. It is also found that the China monsoon rainfall exhibits interdecadal variations with more wet (dry) monsoon years in the Yangtze River (South China and North China) before 1976, but vice versa after 1976. The weakened relationship between the Indian summer rainfall and ENSO is a feature of interdecadal variations, suggesting an important role of the interdecadal variation of the SIOD in the climate over the south Asia and southeast Asia. In addition, evidence indicates that the climate shift in the 1960s may be related to the anomalies of the North Atlantic Oscillation (NAO) and North Pacific Oscillation (NPO). Overall, the present research has improved our understanding of the decadal/ interdecadal variations of SST and their impacts on the Asian monsoon rainfall. However, the research also highlights a number of problems for future research, in particular the mechanisms responsible for the monsoon long-term predictability, which is a great challenge in climate research.

Research Area(s)

  • Climate change, Decadal/interdecadal variation, Monsoon rainfall, Southern Indian Ocean dipole

Citation Format(s)

Decadal/interdecadal variations of the ocean temperature and its impacts on climate. / Li, Chongyin; Zhou, Wen; Jia, Xiaolong et al.
In: Advances in Atmospheric Sciences, Vol. 23, No. 6, 11.2006, p. 964-981.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review