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Tsallis’ statistics in the variability of El Niño/Southern Oscillation during the Holocene epoch

Authors:	Gustavo L Ferri Alejandra Figliola

Institution:	^a Departamento de Física, Faultad de Ciencias Exactas y Naturales, Universidad Nacional de La Pampa, Uruguay 151, 6300 Santa Rosa, La Pampa, Argentina ^b Instituto del Desarrollo Humano, Universidad Nacional de General Sarmiento, Juan María Gutiérrez 1150, Los Polvorines, Buenos Aires, Argentina ^c Departamento de Física, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627 - Campus Pampulha, 31270-901 Belo Horizonte - MG, Brazil ^d Chaos & Biology Group, Instituto de Cálculo, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón II, Ciudad Universitaria, 1428 Ciudad Autónoma de Buenos Aires, Argentina

Abstract:	Analysis of the Tsallis q-triplet for the variability of El Niño Southern Oscillation (ENSO) index during the Holocene epoch (last 11,000 years) is presented. Three periods are analyzed, 0-7000, 7000-9700, 9700-11,000 years before the present. During the first and the third periods, the q-index values have the expected usual relations between them (q_sens<1<q_stat<q_rel), and in the second one there is an inversion between q_stat and q_rel (q_stat>q_rel).

Keywords:	Generalized statistical mechanics Metastable states Mixing Weak chaos _method=retrieve& _eid=1-s2 0-S0378437111008855& _mathId=si51 gif& _pii=S0378437111008855& _issn=03784371& _acct=C000051805& _version=1& _userid=1154080& md5=0e660356c435beafd207ed66c6167991')" style="cursor:pointer q-triplet" target="_blank">" alt="Click to view the MathML source" title="Click to view the MathML source">q-triplet ENSO index
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