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Journal of Automation and Information Sciences

Publication de 12  numéros par an

ISSN Imprimer: 1064-2315

ISSN En ligne: 2163-9337

SJR: 0.173 SNIP: 0.588 CiteScore™:: 2

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Refinement of Model Parameters of Radionuclide Transport with Surface Water while Assimilation of Observational Data

Volume 35, Numéro 6, 2003, 16 pages
DOI: 10.1615/JAutomatInfScien.v35.i6.90
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RÉSUMÉ

The problem of forecast refinement and model parameters of radionuclide migration with surface water by measuring data is considered. We assume that only a priori estimations of the initial state and model parameters are known. This problem is reduced to an optimization problem with a quadratic quality functional in the vicinity of a priori estimations of the initial state and model parameters. We have proved the possibility of one-valued solvability of direct and adjoint problems for the state function of a model. Differential properties of the quality functional are investigated and the necessary conditions of its minimum are found. For weight functions of the quality functional the sufficient conditions of existence of a unique stationary point on a set of the feasible values of model parameters are obtained.

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