87th AMS Annual Meeting

Thursday, 18 January 2007: 9:30 AM
Beyond ENSO: The observational record of decadal climate variability in the Tropical Indo-Pacific Region
217C (Henry B. Gonzalez Convention Center)
Clara Deser, NCAR, Boulder, CO
In this talk, I will discuss observed patterns of decadal climate fluctuations over the tropical Indo-Pacific Ocean since the middle of the 19th century using a variety of data sets and simple analysis techniques, following in the spirit of Gene Rasmusson's classic ENSO studies. The results show that classic ENSO indices such as the “Nino3.4 SST Index” and the “Darwin-minus-Tahiti Southern Oscillation Index” are not optimal for characterizing the decadal variability, and that the Indian Ocean plays a more prominent role in decadal variability than interannual ENSO variability.

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