ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2022, Vol. 19, No. 6, pp. 63-75

Reanalysis of hydrophysical fields based on assimilation of data from the IKI-Monitoring Center for Collective Use in the hydrothermodynamics model of the Black, Azov and Marmara seas

N.B. Zakharova 1 , E.I. Parmuzin 1, 2 , N.R. Lezina 1 , V.I. Agoshkov 1, 2 , T.O. Sheloput 1, 3 , S.A. Lebedev 4, 1 , V.P. Shutyaev 1, 3 , B.S. Shevchenko 2 
1 Marchuk Institute of Numerical Mathematics RAS, Moscow, Russia
2 Lomonosov Moscow State University, Moscow, Russia
3 Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, Russia
4 Geophysical Center RAS, Moscow, Russia
Accepted: 21.11.2022
DOI: 10.21046/2070-7401-2022-19-6-63-75
This work is devoted to the reanalysis of hydrophysical fields based on the assimilation of remote sensing observational data in a numerical model of the hydrothermodynamics of the Black, Azov and Marmara seas in order to integrate the calculation results into the system for monitoring the state of marine areas. The analysis of Aqua, Terra, Sentinel and SNPP satellite data on the sea surface temperature received from the IKI-Monitoring Center for Collective Use was carried out. To process the obtained observational data, to identify and eliminate erroneous values, the statistical method for finding anomalous values and the three-sigma rule were used. An algorithm for variational assimilation of satellite data was implemented. The work uses the INMOM marine circulation mathematical model based on the complete equations of marine hydrothermodynamics. As a result of modeling using the procedure of variational assimilation of observational data, the fields of the main hydrophysical parameters (temperature, salinity, velocity field, sea level) were constructed for the studied water areas. The calculated fields were integrated into the See the Sea satellite service for solving interdisciplinary problems of marine research. The three-dimensional reanalysis fields transferred to the service add the possibility for users to study processes in the water column.
Keywords: sea surface temperature, data assimilation, data processing, satellite data, collective use center, reanalysis
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