Izvestiya, Atmospheric and Oceanic Physics

, Volume 46, Issue 6, pp 677–712 | Cite as

Problems of variational assimilation of observational data for ocean general circulation models and methods for their solution

  • V. I. Agoshkov
  • V. M. Ipatova
  • V. B. Zalesnyi
  • E. I. Parmuzin
  • V. P. Shutyaev
Article

Abstract

Problems of the variational assimilation of satellite observational data on the temperature and level of the ocean surface, as well as data on the temperature and salinity of the ocean from the ARGO system of buoys, are formulated with the use of the global three-dimensional model of ocean thermodynamics developed at the Institute of Numerical Mathematics, Russian Academy of Sciences (INM RAS). Algorithms for numerical solutions of the problems are developed and substantiated, and data assimilation blocks are developed and incorporated into the global three-dimensional model. Numerical experiments are performed with the use of the Indian Ocean or the entire World Ocean as examples. These numerical experiments support the theoretical conclusions and demonstrate that the use of a model with an assimilation block of operational observational data is expedient.

Keywords

variational data assimilation satellite observational data ocean surface temperature salinity field ocean surface level problem of initialization of geophysical fields mathematical model of World Ocean circulation 

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Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • V. I. Agoshkov
    • 1
  • V. M. Ipatova
    • 2
  • V. B. Zalesnyi
    • 1
  • E. I. Parmuzin
    • 1
  • V. P. Shutyaev
    • 1
  1. 1.Institute of Numerical MathematicsRussian Academy of SciencesMoscowRussia
  2. 2.Moscow Institute of Physics and TechnologyDolgoprudnyi, Moscow oblastRussia

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