JP1.8
Multiplicity of ENSO
Fei-Fei Jin, Florida State Univ., Tallahassee, FL; and L. Bejarano
El Niņo and La Niņa are currently understood as warm and cold phases of a natural mode of oscillation that arises as the result of the ocean and the atmosphere interaction over the tropical Pacific. A new picture for the El Niņo phenomenon emerged from this study: the great variations and the broad spectrum of the El Niņo and La Niņa cycles in modern time result from the coexistence of at least two leading modes with periods of nearly 4-6 and 2-3 years. This multiplicity also makes the El Niņo phenomenon gravely sensitive to climate state changes of either natural or anthropogenic causes.
Joint Poster Session 1, DYNAMICS AND CHANGES OF CLIMATE MODES, INCLUDING ANNULAR MODES (JOINT WITH MIDDLE ATMOSPHERE, FLUID DYNAMICS AND CLIMATE VARIATIONS)-POSTER
Monday, 13 June 2005, 4:30 PM-6:00 PM, Riverside
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