Abstract
In this paper, we give an analysis and a general procedure for 4D variational data assimilation (4D-Var). In functional partial differential equation setting, the adjoint equation method, sensitivity analysis, and multicomponent operator splitting are discussed. Nonlinear optimization methods and convergence analysis are also investigated for 4D-Var.
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Jiang, L., Douglas, C.C. An analysis of 4D variational data assimilation and its application. Computing 84, 97–120 (2009). https://doi.org/10.1007/s00607-008-0022-7
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DOI: https://doi.org/10.1007/s00607-008-0022-7
Keywords
- 4D-Var
- Operator splitting methods
- Optimal control problems
- Dynamic data-driven application systems (DDDAS)