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Several Properties of the Model Solution after Data Assimilation into the NEMO Ocean Circulation Model

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Abstract

Several characteristics and their dynamics, in particular, sea surface temperature simulated by the ocean circulation model of Nucleus for European Modeling of the Ocean in conjunction with data assimilation using the Generalized Kalman filter method developed by the authors are studied. Numerical simulation has been carried out on the period one month and Agro drifter data were used for assimilation. Argo data were used for different levels from sea surface until 2000 m. The Fokker–Planck–Kolmogorov equation was used to define the confidence bounds of assimilated parameters, in particular, sea surface temperature. The results of numerical experiments have been presented and analysed.

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Funding

This work was supported by the Russian Science Foundation, project no. 22-11-00053.

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Authors and Affiliations

  1. Shirshov Institute of Oceanology, Russian Academy of Sciences, 117218, Moscow, Russia

    K. Belyaev

  2. Federal Research Center ‘‘Computer Sciences and Control,’’ Russian Academy of Sciences, 119333, Moscow, Russia

    K. Belyaev & N. P. Tuchkova

  3. Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, 125047, Moscow, Russia

    A. Kuleshov

  4. Faculty of Computational Mathematics and Cybernetics, Lomonosov Moscow State University, 119991, Moscow, Russia

    I. Smirnov

Authors
  1. K. Belyaev
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  2. A. Kuleshov
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  3. I. Smirnov
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  4. N. P. Tuchkova
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Corresponding authors

Correspondence to K. Belyaev, A. Kuleshov, I. Smirnov or N. P. Tuchkova.

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(Submitted by A. M. Elizarov)

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Belyaev, K., Kuleshov, A., Smirnov, I. et al. Several Properties of the Model Solution after Data Assimilation into the NEMO Ocean Circulation Model. Lobachevskii J Math 44, 2251–2256 (2023). https://doi.org/10.1134/S1995080223060100

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