Global climate network evolves with North Atlantic Oscillation phases: Coupling to Southern Pacific Ocean

• Main Authors: A. Gozolchiani, Y. Berezin, Y. Wang, S. Havlin
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2013
• Subjects: Pacific; North Atlantic; North Atlantic oscillation
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.665.2289; http://argento.bu.edu/%7Ehes/networks/ggbws13.pdf

PACS 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion Abstract – We construct a network from climate records of the atmospheric temperature at the surface level, at different geographical sites in the globe, using reanalysis data from years 1948–2010. We find that the network correlates with the North Atlantic Oscillation (NAO), both locally in the North Atlantic, and through coupling to the Southern Pacific Ocean. The existence of tele-connection links between those areas and their stability over time allows us to suggest a possible physical explanation for this phenomenon. Copyright c © EPLA, 2013 Introduction. – In recent years, the complex network framework has been applied to analyze climate fields such as temperature and geopotential height at a certain pres-sure level. The aim of this is to follow climate dynamics and to investigate the temporal stability of their struc-