A Nonlinear Mechanism for Decadal El Niño Amplitude Changes.

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Timmermann, Axel and Jin, F.-F. (2002) A Nonlinear Mechanism for Decadal El Niño Amplitude Changes. Open Access Geophysical Research Letters, 29 (1). p. 1003. DOI 10.1029/2001GL013369.

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Abstract

Based on the analysis of a low-order tropical atmosphere-ocean model we propose a nonlinear mechanism explaining several features of the observed El Niño-Southern Oscillation (ENSO) phenomenon: ENSO irregularity, ENSO Amplitude Modulations and decadal tropical climate variability. The mechanism suggested here is based on the idea of homoclinic/heteroclinic orbits, an inherently nonlinear concept. It turns out that this mechanism operates even in the presence of wind noise and is consistent with results from intermediate ENSO model simulations.

Document Type: Article
Keywords: Decadal El Niño Amplitude changes
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-TM Theory and Modeling
Refereed: Yes
Open Access Journal?: No
Publisher: AGU (American Geophysical Union)
Date Deposited: 18 Feb 2008 17:25
Last Modified: 20 Feb 2018 07:51
URI: https://oceanrep.geomar.de/id/eprint/401

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