Role of the ENSO-Indian Ocean coupling on ENSO variability in a coupled GCM

Jong Seong Kug, Tim Li, Soon Il An, In Sik Kang, Jing Jia Luo, Sebastien Masson, Toshio Yamagata

Research output: Contribution to journalArticle

80 Citations (Scopus)

Abstract

The effect of the Indian Ocean on El Niño/La Niña life cycles has been studied using 200-yrs simulation data of a coupled GCM. The results show that the interactive feedback between the ENSO and the Indian Ocean holds the key to the rapid transition to an opposite phase. This remote impact of the Indian Ocean SST anomaly is linked to the change of zonal wind stress in the western Pacific, which leads to a rapid demise of El Nino/La Nina. Without the involvement of the Indian Ocean, the phase transition is much slower. This role of the ENSO-Indian Ocean coupling on ENSO transition is consistent with that derived from the observational analysis.

Original languageEnglish
Article numberL09710
JournalGeophysical Research Letters
Volume33
Issue number9
DOIs
Publication statusPublished - 2006 May 16

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Indian Ocean
El Nino-Southern Oscillation
general circulation model
el Nino
data simulation
La Nina
zonal wind
phase transition
wind stress
El Nino
sea surface temperature
life cycle
anomalies
anomaly
cycles
simulation

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth and Planetary Sciences(all)

Cite this

Kug, J. S., Li, T., An, S. I., Kang, I. S., Luo, J. J., Masson, S., & Yamagata, T. (2006). Role of the ENSO-Indian Ocean coupling on ENSO variability in a coupled GCM. Geophysical Research Letters, 33(9), [L09710]. https://doi.org/10.1029/2005GL024916
Kug, Jong Seong ; Li, Tim ; An, Soon Il ; Kang, In Sik ; Luo, Jing Jia ; Masson, Sebastien ; Yamagata, Toshio. / Role of the ENSO-Indian Ocean coupling on ENSO variability in a coupled GCM. In: Geophysical Research Letters. 2006 ; Vol. 33, No. 9.
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Role of the ENSO-Indian Ocean coupling on ENSO variability in a coupled GCM. / Kug, Jong Seong; Li, Tim; An, Soon Il; Kang, In Sik; Luo, Jing Jia; Masson, Sebastien; Yamagata, Toshio.

In: Geophysical Research Letters, Vol. 33, No. 9, L09710, 16.05.2006.

Research output: Contribution to journalArticle

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AU - Masson, Sebastien

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AB - The effect of the Indian Ocean on El Niño/La Niña life cycles has been studied using 200-yrs simulation data of a coupled GCM. The results show that the interactive feedback between the ENSO and the Indian Ocean holds the key to the rapid transition to an opposite phase. This remote impact of the Indian Ocean SST anomaly is linked to the change of zonal wind stress in the western Pacific, which leads to a rapid demise of El Nino/La Nina. Without the involvement of the Indian Ocean, the phase transition is much slower. This role of the ENSO-Indian Ocean coupling on ENSO transition is consistent with that derived from the observational analysis.

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