Method for Setting Conditions at Open Lateral Boundaries in the Baltic Sea Hydrothermodynamic Model Based on Variational Assimilation of Salinity Data

• DOI: 10.3103/s1068373922020029
• Publication Date: 2022-06-21T09:03:35Z
• Authors: T. O. Sheloput; A. V. Gusev
• Keywords: Baltic sea; Inflow

An algorithm for taking into account salt fluxes through the open boundary of the simulated water area, that is based on the method of variational data assimilation, is proposed. The results of the numerical experiment on simulating the major Baltic inflow that occurred in December 2014 are presented. The experiment utilized the Baltic Sea hydrodynamic model developed on the basis of the INMOM ocean and sea circulation model with implementation of the proposed algorithm. A comparison between the simulation results obtained using the algorithm and the results obtained by relaxation to observational data is carried out.