Analysis of an EL Nino-Southern Oscillation proxy record using Information Theory quantifiers
- Authors: Laura C. Carpi1, Patricia M. Saco2, Alejandra Figliola3, Eduardo Serrano4, Osvaldo A. Rosso5
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View Affiliations Hide Affiliations1 Civil, Surveying and Environmental Engineering, The University of Newcastle, University Drive, Callaghan NSW 2308, Australia 2 Civil, Surveying and Environmental Engineering, The University of Newcastle, University Drive, Callaghan NSW 2308, Australia 3 Instituto del Desarrollo Humano, Universidad Nacional de General Sarmiento Juan Mar´ıa Guti´errez 1150, Los Polvorines, Buenos Aires, Argentina 4 Centro de Matem´atica Aplicada, ECyT, Universidad Nacional de San Mart´ın, Irigoyen 3100, San Mart´ın, Buenos Aires, Argentina 5 Departamento de F´ısica, Instituto de Ciˆencias Exatas, Universidade Federal de Minas Gerais, Av. Antˆonio Carlos, 6627 - Campus Pampulha, 31270-901 Belo Horizonte - MG, Brazil
- Source: Concepts and Recent Advances in Generalized Information Measures and Statistics , pp 309-340
- Publication Date: December 2013
- Language: English
Analysis of an EL Nino-Southern Oscillation proxy record using Information Theory quantifiers, Page 1 of 1
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Quantifiers based on Information Theory, the normalized Shannon entropy, the Fisher information measure and the Shannon-Jensen statistical complexity are used to characterize changes in the dynamical behavior of EL Nino Southern-Oscillation (ENSO) during the Holocene. For this purpose we analyze the ENSO proxy record corresponding to Pallcacocha Lake sedimentary data for the Holoceno period (11,000 yr BP to present). By recourse of these quantifiers we found evidence of a shift in dynamics and cyclic behavior of the ENSO proxy, which is consistent with the results of Moy et al. [Nature 420 (2002) 162-165]. In addition, we have been also able to localize these cycles in time and to analyze connections to epochs of rapid climate change (RCC) during the Holocene.
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