Climate networks around the globe are significantly affected by El Niño.

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.

• Publication year

  2008

• Venue

  Physical Review Letters

• Publication date

  2008-04-08

• Fields of study

  Geography, Medicine, Physics, Environmental Science

• Identifiers
  DOI 10.1103/PHYSREVLETT.100.228501arXiv 0804.1374PMID 18643467
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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