Testing a particle filter to reconstruct climate changes over the past centuries

Svetlana Dubinkina*, Hugues Goosse, Yoann Sallaz-Damaz, Elisabeth Crespin, Michel Crucifix

*Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

We implement a data-assimilation method based on a particle filter in the coupled climate model LOVECLIM focusing on decadal to centennial time scales. Several tests are performed with particle filtering using pseudo-observations obtained from a twin experiment with the model, as well as using real-data observations over the last century. These tests demonstrate that it is possible to obtain a model output well correlated with the observations at the large scale at a reasonable cost.

Original languageEnglish
Pages (from-to)3611-3618
Number of pages8
JournalInternational Journal of Bifurcation and Chaos
Volume21
Issue number12
DOIs
Publication statusPublished - Dec 2011
Externally publishedYes

Keywords

  • data assimilation
  • multidecadal scale
  • Palaeoclimatology
  • particle filtering

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