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Climate Networks around the Globe are Significantly Affected by El Niño

Phys. Rev. Lett. 100, 228501 – Published 5 June 2008
K. Yamasaki, A. Gozolchiani, and S. Havlin
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    Abstract

    The temperatures in different zones in the world do not show significant changes due to El Niño except when measured in a restricted area in the Pacific Ocean. We find, in contrast, that the dynamics of a climate network based on the same temperature records in various geographical zones in the world is significantly influenced by El Niño. During El Niño many links of the network are broken, and the number of surviving links comprises a specific and sensitive measure for El Niño events. While during non-El Niño periods these links which represent correlations between temperatures in different sites are more stable, fast fluctuations of the correlations observed during El Niño periods cause the links to break.

    DOI: http://dx.doi.org/10.1103/PhysRevLett.100.228501

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    • Published 5 June 2008
    • Received 4 January 2008

    Authors & Affiliations

    K. Yamasaki1,*, A. Gozolchiani2, and S. Havlin2

    • 1Tokyo University of Information Sciences, Chiba, Japan
    • 2Minerva Center and Department of Physics, Bar Ilan University, Ramat Gan, Israel

    • *yamasaki@rsch.tuis.ac.jp

    See Also

    Topology and Predictability of El Niño and La Niña Networks

    Anastasios A. Tsonis and Kyle L. Swanson
    Phys. Rev. Lett. 100, 228502 (2008)

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