Global ETD Search
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Showing 1 to 2 of 2 for “"assimilation in the unstable subspace"”.
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A dynamical system approach to data assimilation in chaotic models
The Assimilation in the Unstable Subspace (AUS) was introduced by Trevisan and Uboldi in 2004, and developed by Trevisan, Uboldi and Carrassi, to minimize the analysis and forecast errors by exploiting the flow-dependent instabilities of the forecast-analysis cycle system, which may be thought of …
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Nonlinear filtering of high dimensional, chaotic, multiple timescale correlated systems
This dissertation addresses theoretical and numerical questions in nonlinear filtering theory for high dimensional, chaotic, multiple timescale correlated systems. The research is motivated by problems in the geosciences, in particular oceanic or atmospheric estimation and climate prediction. As …