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• (author = "Carrassi A.")
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Controlling instabilities along a 3DVar analysis cycle by assimilating in the unstable subspace: a comparison with the EnKF

Author(s) : Carrassi, A. , Trevisan, A. , Descamps, L. , Talagrand, O. , Uboldi, F.
Description : A hybrid scheme obtained by combining 3DVar with the Assimilation in the Unstable Subspace (3DVar-AUS) is tested in a QG model, under perfect model conditions, with a fixed observational network, with and without observational noise. The AUS scheme, originally formulated to assimilate adaptive obs...
Repository : arXiv , View repository documents
Language(s) : Undetermined
Subject(s) : Nonlinear Sciences - Chaotic Dynamics
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Publication Date(s) : 2008-04-14