Russian Journal of Earth Sciences Russian Journal of Earth Sciences Russian Journal of Earth Sciences 1681-1208 53555 10.2205/2022ES000832 ОРИГИНАЛЬНЫЕ СТАТЬИ ORIGINAL ARTICLES ОРИГИНАЛЬНЫЕ СТАТЬИ Geographical and seasonal distribution of tidal body force field in the Sea of Okhotsk in the context of internal wave dynamics Geographical and seasonal distribution of tidal body force field in the Sea of Okhotsk in the context of internal wave dynamics Кокоулина Мария Владимировна Kokoulina Maria Vladimirovna https://orcid.org/0000-0002-4030-2906 Куркина Оксана Евгеньевна Kurkina Oxana Evgenievna Рувинская Екатерина Александровна Rouvinskaya Ekaterina Aleksandrovna https://orcid.org/0000-0003-3828-6406 Куркин Андрей Александрович Kurkin Andrey Aleksandrovich aakurkin@gmail.com Нижегородский государственный технический университет имени Р.Е. Алексеева Nizhny Novgorod State Technical University named after R.E. Alexeyev Нижегородский государственный технический университет Nizhniy Novgorod RU Nizhny Novgorod State Technical University n.a. R.E. Alekseev Nizhniy Novgorod RU Тихоокеанский океанологический институт им. В.И.Ильичева Дальневосточного отделения РАН Vladivostok Россия V.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch Vladivostok Russian Federation 31 12 2022 31 12 2022 22 6 1 10 25 10 2022 04 11 2022 https://ras.editorum.ru/en/nauka/article/53555/view

Estimates of the barotropic tidal body force for diurnal and semidiurnal tides are obtained for the Sea of Okhotsk for the summer and winter periods. It is shown that in the study area, the tidal body force for diurnal tides is significantly greater than for semidiurnal ones. The maximum values of this quantity can reach about 2-8 m2 s-2, and these values are typical for areas with a sharp bathymetric gradient. A comparison of the tidal body force for the two seasons showed noticeable differences. The features of the transformation of a barotropic tidal wave propagating in the zone of large values of the tidal body force for the K1, O1, M2 tidal constituents are demonstrated. Numerical simulations indicate that baroclinic tidal waves are effectively generated in this area, and intense short-period internal waves are likely to occur.

Estimates of the barotropic tidal body force for diurnal and semidiurnal tides are obtained for the Sea of Okhotsk for the summer and winter periods. It is shown that in the study area, the tidal body force for diurnal tides is significantly greater than for semidiurnal ones. The maximum values of this quantity can reach about 2-8 m2 s-2, and these values are typical for areas with a sharp bathymetric gradient. A comparison of the tidal body force for the two seasons showed noticeable differences. The features of the transformation of a barotropic tidal wave propagating in the zone of large values of the tidal body force for the K1, O1, M2 tidal constituents are demonstrated. Numerical simulations indicate that baroclinic tidal waves are effectively generated in this area, and intense short-period internal waves are likely to occur.

 Sea of Okhotsk tidal body force multicomponent barotropic tide internal waves numerical modeling. Sea of Okhotsk tidal body force multicomponent barotropic tide internal waves numerical modeling. The reported study was funded by the Ministry of Science and Higher Education of the Russian Feder-ation (project No. FSWE-2020-0007) and the Council of the grants of the President of the Russian Federation for the state support of Leading Scientific Schools of the Russian Federation (Grant No. NSH-70.2022.1.5) and young scientists and graduate students (Grant No. SP-692.2021.5). The reported study was funded by the Ministry of Science and Higher Education of the Russian Feder-ation (project No. FSWE-2020-0007) and the Council of the grants of the President of the Russian Federation for the state support of Leading Scientific Schools of the Russian Federation (Grant No. NSH-70.2022.1.5) and young scientists and graduate students (Grant No. SP-692.2021.5).

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