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MEI, SOI and mid-range correlations in the onset of El Niño–Southern Oscillation

Eduardo Ortiz-Tánchez, Werner Ebeling and Karl Lanius

Physica A: Statistical Mechanics and its Applications, 2002, vol. 310, issue 3, 509-520

Abstract: Entropy analysis and wavelet transforms are used to study the Southern Oscillation index (SOI) and multivariate ENSO index (MEI) indexes for the El Niño–Southern Oscillation. Trends to large decreasing symbolic chains responsible for La Niña and interrupted increasing chains for El Niño are found in the MEI persistence series. These are all located in regions where the wavelet transforms of both indexes reveal the existence of mid-range correlations. The SOI and MEI indexes are mutually correlated in a non-trivial manner in the time.

Keywords: Entropy analysis; Mid-range correlations (search for similar items in EconPapers)
Date: 2002
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:310:y:2002:i:3:p:509-520

DOI: 10.1016/S0378-4371(02)00812-9

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Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

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