On the nonlinear interaction between global teleconnection patterns

• Published in: Quarterly Journal of the Royal Meteorological Society
• Main Authors: Khokhlov, V. N., Glushkov, A. V., Loboda, N. S.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2006
• Subjects: Antarctic; Arctic; The Antarctic; Antarc*; Climate change
• Online Access: http://dx.doi.org/10.1256/qj.05.05; http://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1256%2Fqj.05.05; https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1256/qj.05.05

Abstract Processes of nonlinear interaction between teleconnection patterns are addressed. Evidence of chaotic behaviour for the relationship between the Arctic Oscillation (AO), the Southern Oscillation (SO), and the Antarctic Oscillation (AAO) is examined using cross‐redundancy and Granger causality. The analysis is carried out for three epochs of the twentieth century, during which different trends of global temperature were observed. To study the influence of low‐frequency variations, a wavelet decomposition is applied. Presented results display many well‐known features of feedbacks between climate change and observed trends in the indices of teleconnection patterns. By using wavelet detail components, some behaviour is revealed as being particularly pure. At the same time, some findings require considerable further work, especially the apparent nonlinear interaction between the AO and the AAO. Our results are encouraging for the prospects of a useful model describing climate changes at the decadal and centurial time‐scales. Copyright © 2006 Royal Meteorological Society