We implement a data-assimilation method based on a particle filter in the coupled climate model LEVECLIM 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.
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World Scientific Publishing Co. Pte. Ltd. ((Singapore) Singapore)
International Journal of Bifurcation and Chaos in Applied Sciences and Engineering

Dubinkina, S., Goosse, H., Sallaz-Damaz, Y., Crespin, E., & Crucifix, M. (2011). Testing a particle filter to reconstruct climate changes over the past centuries. International Journal of Bifurcation and Chaos in Applied Sciences and Engineering, 21(12), 3611–3618.