Multiscale Analysis of Antarctic Surface Temperature Series by Empirical Mode Decomposition

G. Autret (1) , Frédérique Rémy (2) , Sylvie Roques (3)

1 LEGOS - Laboratoire d'études en Géophysique et océanographie spatiales
2 GLACIO LEGOS
3 IRAP - Institut de recherche en astrophysique et planétologie

This article illustrates the multiscale nature of the Antarctica climatology. Its variability is analyzed from coastal weather stations climate recordings of the continent, supplying temperature data since 1955. Using empirical mode decomposition, coupled to wavelet analysis, climatological signals are detected of a weak near-8-yr rotating wave that could be the so-called Antarctic Circumpolar Wave.

Domaines: Océanographie

G. Autret, Frédérique Rémy, Sylvie Roques. Multiscale Analysis of Antarctic Surface Temperature Series by Empirical Mode Decomposition. Journal of Atmospheric and Oceanic Technology, 2013, 30 (4), pp.649-654. ⟨10.1175/JTECH-D-11-00050.1⟩. ⟨hal-00846585⟩