TESTING A PARTICLE FILTER TO RECONSTRUCT CLIMATE CHANGES OVER THE PAST CENTURIES

2011/12/01 by SVETLANA DUBINKINA, Svetlana Dubinkina, HUGUES GOOSSE +7
Environmental Science · Earth and Planetary Sciences · #Climate variability and models #Meteorological Phenomena and Simulations #Cryospheric studies and observations

paper · doi:10.1142/s0218127411030763

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.

Citations

• Particle Filtering in Geophysical Systems
• Obstacles to High-Dimensional Particle Filtering
• Atmospheric Predictability as Revealed by Naturally Occurring Analogues

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