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Teleconnection Paths via Climate Network Direct Link Detection

Dong Zhou, Avi Gozolchiani, Yosef Ashkenazy, and Shlomo Havlin
Phys. Rev. Lett. 115, 268501 – Published 30 December 2015
Physics logo See Synopsis: Finding Climate Teleconnection Paths
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Abstract

Teleconnections describe remote connections (typically thousands of kilometers) of the climate system. These are of great importance in climate dynamics as they reflect the transportation of energy and climate change on global scales (like the El Niño phenomenon). Yet, the path of influence propagation between such remote regions, and weighting associated with different paths, are only partially known. Here we propose a systematic climate network approach to find and quantify the optimal paths between remotely distant interacting locations. Specifically, we separate the correlations between two grid points into direct and indirect components, where the optimal path is found based on a minimal total cost function of the direct links. We demonstrate our method using near surface air temperature reanalysis data, on identifying cross-latitude teleconnections and their corresponding optimal paths. The proposed method may be used to quantify and improve our understanding regarding the emergence of climate patterns on global scales.

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  • Received 7 September 2015

DOI:https://doi.org/10.1103/PhysRevLett.115.268501

© 2015 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
  1. Physical Systems
Interdisciplinary Physics

Synopsis

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Finding Climate Teleconnection Paths

Published 30 December 2015

A new method allows researchers to extract climate connections between remote regions from global temperature datasets.

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Authors & Affiliations

Dong Zhou1,*, Avi Gozolchiani2, Yosef Ashkenazy2, and Shlomo Havlin1

  • 1Department of Physics, Bar-Ilan University, Ramat Gan 52900, Israel
  • 2Department of Solar Energy and Environmental Physics, BIDR, Ben-Gurion University, Midreshet Ben-Gurion 84990, Israel

  • *Corresponding author. zhoudongbnu@gmail.com

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Issue

Vol. 115, Iss. 26 — 31 December 2015

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