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

Dubinkina, Svetlana;Goosse, Hugues;Sallaz-Damaz, Yoann;Crespin, Elisabeth;Crucifix, Michel
(2011) European Geosciences Union General Assembly — Location: Vienna, Austria (3.April.2011)

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Authors
  • Dubinkina, SvetlanaUCLouvain
    Author
  • Goosse, Huguesorcid-logoUCLouvain
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  • Sallaz-Damaz, YoannESRF, France
    Author
  • Crespin, ElisabethUCLouvain
    Author
  • Crucifix, Michelorcid-logoUCLouvain
    Author
Abstract
We implement a data-assimilation method, a particle filter, in a climate model focusing on 100 years time scale. Several tests are performed with particle filtering using pseudo-observations obtained from a twin experiment with the coupled climate model LOVECLIM, as well as using real-data observations over the last century HADCRUT3. These tests demonstrate that it is possible to obtain a model output correlated well with the observations at the large scales at a reasonable cost.
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Dubinkina, S., Goosse, H., Sallaz-Damaz, Y., Crespin, E., & Crucifix, M. (2011). Testing a particle filter to reconstruct climate changes over the past centuries. European Geosciences Union General Assembly, Vienna, Austria. https://hdl.handle.net/2078.5/206253