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Nonlinear effects on ENSO's period

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Nonlinear effects on ENSO's period. / Eccles, Fiona; Tziperman, Eli.
In: Journal of the Atmospheric Sciences, Vol. 61, No. 4, 02.2004, p. 474-482.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Eccles, F & Tziperman, E 2004, 'Nonlinear effects on ENSO's period', Journal of the Atmospheric Sciences, vol. 61, no. 4, pp. 474-482. https://doi.org/10.1175/1520-0469(2004)061<0474:NEOEP>2.0.CO;2

APA

Eccles, F., & Tziperman, E. (2004). Nonlinear effects on ENSO's period. Journal of the Atmospheric Sciences, 61(4), 474-482. https://doi.org/10.1175/1520-0469(2004)061<0474:NEOEP>2.0.CO;2

Vancouver

Eccles F, Tziperman E. Nonlinear effects on ENSO's period. Journal of the Atmospheric Sciences. 2004 Feb;61(4):474-482. doi: 10.1175/1520-0469(2004)061<0474:NEOEP>2.0.CO;2

Author

Eccles, Fiona ; Tziperman, Eli. / Nonlinear effects on ENSO's period. In: Journal of the Atmospheric Sciences. 2004 ; Vol. 61, No. 4. pp. 474-482.

Bibtex

@article{2d3ef2fed82a40cfafdd6a80ec8fa4fa,
title = "Nonlinear effects on ENSO's period",
abstract = "The dependence of ENSO{\textquoteright}s period on its amplitude is examined using a simple delayed oscillator model. This dependence is first calculated in the strongly nonlinear regime by extracting and analyzing unstable periodic orbits from the chaotic attractor of the model. In this regime, the period is found to decrease with increasing amplitude. Next, the dependence of the period on the amplitude is also calculated analytically and numerically in the weakly nonlinear regime by varying the ocean–atmosphere coupling coefficient. In this case, the period increases with the amplitude. The weakly nonlinear result reflects the dependence of the period on the ocean– atmosphere coupling strength rather than the dependence on the amplitude, while the strongly nonlinear result is the robust take-home message here: the period reduces with increasing amplitude.",
author = "Fiona Eccles and Eli Tziperman",
note = "{\textcopyright} 2004 American Meteorological Society",
year = "2004",
month = feb,
doi = "10.1175/1520-0469(2004)061<0474:NEOEP>2.0.CO;2",
language = "English",
volume = "61",
pages = "474--482",
journal = "Journal of the Atmospheric Sciences",
issn = "0022-4928",
publisher = "American Meteorological Society",
number = "4",

}

RIS

TY - JOUR

T1 - Nonlinear effects on ENSO's period

AU - Eccles, Fiona

AU - Tziperman, Eli

N1 - © 2004 American Meteorological Society

PY - 2004/2

Y1 - 2004/2

N2 - The dependence of ENSO’s period on its amplitude is examined using a simple delayed oscillator model. This dependence is first calculated in the strongly nonlinear regime by extracting and analyzing unstable periodic orbits from the chaotic attractor of the model. In this regime, the period is found to decrease with increasing amplitude. Next, the dependence of the period on the amplitude is also calculated analytically and numerically in the weakly nonlinear regime by varying the ocean–atmosphere coupling coefficient. In this case, the period increases with the amplitude. The weakly nonlinear result reflects the dependence of the period on the ocean– atmosphere coupling strength rather than the dependence on the amplitude, while the strongly nonlinear result is the robust take-home message here: the period reduces with increasing amplitude.

AB - The dependence of ENSO’s period on its amplitude is examined using a simple delayed oscillator model. This dependence is first calculated in the strongly nonlinear regime by extracting and analyzing unstable periodic orbits from the chaotic attractor of the model. In this regime, the period is found to decrease with increasing amplitude. Next, the dependence of the period on the amplitude is also calculated analytically and numerically in the weakly nonlinear regime by varying the ocean–atmosphere coupling coefficient. In this case, the period increases with the amplitude. The weakly nonlinear result reflects the dependence of the period on the ocean– atmosphere coupling strength rather than the dependence on the amplitude, while the strongly nonlinear result is the robust take-home message here: the period reduces with increasing amplitude.

U2 - 10.1175/1520-0469(2004)061<0474:NEOEP>2.0.CO;2

DO - 10.1175/1520-0469(2004)061<0474:NEOEP>2.0.CO;2

M3 - Journal article

VL - 61

SP - 474

EP - 482

JO - Journal of the Atmospheric Sciences

JF - Journal of the Atmospheric Sciences

SN - 0022-4928

IS - 4

ER -