Using MSSA to determine explicitly the oscillatory dynamics of weakly nonlinear climate systems

Stephane Raynaud, P. Yiou, R. Kleeman, S. Speich

Research output: Contribution to journalArticle

Abstract

This paper presents a statistical diagnostic to interpret the dynamics of nonlinear variability in models. It consists in applying the Multichannel Singular Spectrum Analysis to the variability of a suitable equation of a dynamical system. This method enables us to evaluate the sensitivity of the oscillatory features of a physical model to tendencies in its mathematical formulation. Hence, responses in amplitude and frequency are determined in the phase space of the model. The example of interannual variability of the tropical Pacific climate through the analysis the Sea Surface Temperature equation of a hybrid coupled model is used to illustrate and validate the methodology.

Original languageEnglish (US)
Pages (from-to)807-815
Number of pages9
JournalNonlinear Processes in Geophysics
Volume12
Issue number6
DOIs
StatePublished - Jan 1 2005

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Geophysics
  • Geochemistry and Petrology

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