Mixed-Mode Oscillations of El Niño–Southern OscillationSource: Journal of the Atmospheric Sciences:;2016:;Volume( 073 ):;issue: 004::page 1755Author:Roberts, Andrew
,
Guckenheimer, John
,
Widiasih, Esther
,
Timmermann, Axel
,
Jones, Christopher K. R. T.
DOI: 10.1175/JAS-D-15-0191.1Publisher: American Meteorological Society
Abstract: ery strong El Niño events occur sporadically every 10?20 yr. The origin of this bursting behavior still remains elusive. Using a simplified three-dimensional dynamical model of the tropical Pacific climate system, which captures El Niño?Southern Oscillation (ENSO) combined with recently developed mathematical tools for fast?slow systems, the authors show that decadal ENSO bursting behavior can be explained as a mixed-mode oscillation (MMO), which also predicts a critical threshold for rapid amplitude growth. It is hypothesized that the MMO dynamics of the low-dimensional climate model can be linked to a saddle-focus equilibrium point, which mimics a tropical Pacific Ocean state without ocean circulation.
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| contributor author | Roberts, Andrew | |
| contributor author | Guckenheimer, John | |
| contributor author | Widiasih, Esther | |
| contributor author | Timmermann, Axel | |
| contributor author | Jones, Christopher K. R. T. | |
| date accessioned | 2017-06-09T16:58:58Z | |
| date available | 2017-06-09T16:58:58Z | |
| date copyright | 2016/04/01 | |
| date issued | 2016 | |
| identifier issn | 0022-4928 | |
| identifier other | ams-77409.pdf | |
| identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4219964 | |
| description abstract | ery strong El Niño events occur sporadically every 10?20 yr. The origin of this bursting behavior still remains elusive. Using a simplified three-dimensional dynamical model of the tropical Pacific climate system, which captures El Niño?Southern Oscillation (ENSO) combined with recently developed mathematical tools for fast?slow systems, the authors show that decadal ENSO bursting behavior can be explained as a mixed-mode oscillation (MMO), which also predicts a critical threshold for rapid amplitude growth. It is hypothesized that the MMO dynamics of the low-dimensional climate model can be linked to a saddle-focus equilibrium point, which mimics a tropical Pacific Ocean state without ocean circulation. | |
| publisher | American Meteorological Society | |
| title | Mixed-Mode Oscillations of El Niño–Southern Oscillation | |
| type | Journal Paper | |
| journal volume | 73 | |
| journal issue | 4 | |
| journal title | Journal of the Atmospheric Sciences | |
| identifier doi | 10.1175/JAS-D-15-0191.1 | |
| journal fristpage | 1755 | |
| journal lastpage | 1766 | |
| tree | Journal of the Atmospheric Sciences:;2016:;Volume( 073 ):;issue: 004 | |
| contenttype | Fulltext |