Abstract
The study considers the simulation of tides by two marine circulation models applied for the Sea of Okhotsk: the z-model with a spatial resolution of \(\sim\) 3.7 km implemented directly for the Sea of Okhotsk and the \(\sigma\) -model implemented for the Sea of Okhotsk and the Sea of Japan with a spatial resolution of \(\sim\) 3.5 km. The z-model is based on the HyRMoS (Hydrometeorological Center of Russia Model of the Sea) developed by S.K. Popov at the Hydrometeorological Center of Russia, and the \(\sigma\) -model is based on the INMOM (Institute of Numerical Mathematics Ocean Model). The results of model simulations are compared with the data of the harmonic constants of the main tidal constituents measured at 98 coastal tide gauge stations of the Sea of Okhotsk and Tatar Strait. Analysis of the simulation results shows that the accuracy of both models is comparable. Differences in the tidal harmonic values obtained from the z- and \(\sigma\) -models are primarily attributed to the accuracy and specific features of the bottom topography used, as well as to the location of the open boundary and the configuration of the grid domains.
