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The ENSO transition probabilities

The ENSO transition probabilities AbstractENSO is investigated here by considering it as a transition from different states. Transition probability matrices can be defined to describe the evolution of ENSO in this way. Sea Surface Temperature anomalies are classified into four categories, or states, and the probability to move from one state to another has been calculated both for observations and a simulation from a GCM. This could be useful for understanding and diagnosing General Circulation Models elucidating the mechanisms that govern ENSO in models. Furthermore, these matrices have been used to define a predictability index of ENSO based on the entropy concept introduced by Shannon (1948). The index correctly identifies the emergence of the Spring Predictability Barrier and the seasonal variations of the transition probabilities. The Transition Probability Matrices could also be used to formulate a basic prediction model for ENSO that was tested here on a case study. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Climate American Meteorological Society

The ENSO transition probabilities

Journal of Climate , Volume preprint (2017): 1 – Mar 28, 2017

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References (62)

Publisher
American Meteorological Society
Copyright
Copyright © American Meteorological Society
ISSN
1520-0442
eISSN
1520-0442
DOI
10.1175/JCLI-D-16-0490.1
Publisher site
See Article on Publisher Site

Abstract

AbstractENSO is investigated here by considering it as a transition from different states. Transition probability matrices can be defined to describe the evolution of ENSO in this way. Sea Surface Temperature anomalies are classified into four categories, or states, and the probability to move from one state to another has been calculated both for observations and a simulation from a GCM. This could be useful for understanding and diagnosing General Circulation Models elucidating the mechanisms that govern ENSO in models. Furthermore, these matrices have been used to define a predictability index of ENSO based on the entropy concept introduced by Shannon (1948). The index correctly identifies the emergence of the Spring Predictability Barrier and the seasonal variations of the transition probabilities. The Transition Probability Matrices could also be used to formulate a basic prediction model for ENSO that was tested here on a case study.

Journal

Journal of ClimateAmerican Meteorological Society

Published: Mar 28, 2017

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