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Numerical experiments on estimating the accuracy of four-dimensional analysis of hydrophysical fields using a quasi-geostrophic model of currents

  • Analysis of Observations and Methods of Calculating Oceanic Hydrophysical Fields
  • Published:
Soviet journal of physical oceanography

Abstract

The relationship between the results of four-dimensional (4-D) analysis and the approximations employed in the assimilation scheme, as well as the initial fields, is studied. The contribution made by a procedure of correcting the horizontal velocities by theT, S data to the increase of the quality of the data obtained is estimated. Numerical experiments were carried out on the data of measurements made in the observation site located in the Newfoundland energy-active zone in August 1985.

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References

  1. Knysh, V. V., Moiseenko, V. A. and Chernov, V. V. Some results of 4-D analysis of hydrophysical fields in the tropical Atlantic.Izv. Akad. Nauk SSSR. Fiz. Atmos. Okeana (1988)7, 744–752.

    Google Scholar 

  2. Timchenko, I. E., Khlopushina, S. I. and Belozersky, V. O. The system 4-D analysis of the ocean fields in the tropical Atlantic based on dynamico-stochastic models. Preprint of MHI, Sevastopol (1987), 52 p.

  3. Knysh, V. V., Moiseenko, V. A. and Chernov, V. V. Estimation of the characteristics of the thermodynamic water structure in the Newfoundland energy-active zone based on the results of 4-D analysis.Mar. Hydrophys. J. (1990)1, 17–25.

    Google Scholar 

  4. Rivin, G. S. Studying the assimilation of additional meteorological data using ‘twins and cousins’ experiments. In:Mathematic Models of the Atmospheric Motions. Novosibirsk: Nauka (1980), pp. 100–113.

    Google Scholar 

  5. Mashkovich, S. A. Numerical experiments on the multi-element 3-D objective analysis of meteorologic fields.Meteorol. Hydrol. (1989)10, 15–22.

    Google Scholar 

  6. Sakawa, Y. Optimal filtering in linear distributed parameter systems.Int. J. Control. (1972)16, 115–127.

    Google Scholar 

  7. Grishakov, F. F., Kolinko, A. V. and Shevchenko, S. N. Characteristic of the thermodynamic structure of waters in the Newfoundland energy-active zone. In:Hydrometeorological Regularities of the Formation of Mid-latitude Energy-Active Areas in the World's Oceans. Moscow: Gidrometeoizdat (1986), PI, pp. 7–18.

    Google Scholar 

  8. Baranov, E. I., Kolinko, A. V. and Regentovsky, V. S. Seasonal and interannual variability of thermohaline characteristics of waters in the Newfoundland energy-active zone.Proc. GOIN (1989)178, 3–17.

    Google Scholar 

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Translated by Mikhail M. Trufanov.

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Chernov, V.V. Numerical experiments on estimating the accuracy of four-dimensional analysis of hydrophysical fields using a quasi-geostrophic model of currents. Soviet Journal of Physical Oceanography 3, 43–52 (1992). https://doi.org/10.1007/BF02198492

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  • DOI: https://doi.org/10.1007/BF02198492

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