SPATIAL DISTRIBUTION OF AMPLITUDES OF INTERNAL TIDAL WAVES ON THE NORTH-EASTERN SHELF OF SAKHALIN

E. A. Rouvinskaya; Рувинская Е. А.; O. E. Kurkina; Куркина О. Е.; A. A. Kurkin; Куркин А. А.

doi:10.31857/S2686739722602551

SPATIAL DISTRIBUTION OF AMPLITUDES OF INTERNAL TIDAL WAVES ON THE NORTH-EASTERN SHELF OF SAKHALIN

Authors: Rouvinskaya E.A.¹, Kurkina O.E.¹, Kurkin A.A.¹
Affiliations:
1. R.E. Alekseev Nizhny Novgorod State Technical University
Issue: Vol 509, No 1 (2023)
Pages: 81-86
Section: ОКЕАНОЛОГИЯ
URL: https://journals.rcsi.science/2686-7397/article/view/135753
DOI: https://doi.org/10.31857/S2686739722602551
EDN: https://elibrary.ru/TIIJEG
ID: 135753

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Abstract
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Abstract

The transformation of a multicomponent barotropic tide in the Sea of Okhotsk is considered in the framework of fully nonlinear non-hydrostatic calculations. The data of the tidal model and parameterized bottom topography and vertical profiles of sea water density based on data from open international atlases are used to initialize the model. Estimates of the wave amplitudes of the diurnal and semidiurnal baroclinic tides in terms of the displacement of isopycnal surfaces at different horizons are obtained and presented in the form of geographical maps. It is shown that the distribution of amplitudes significantly depends on depth, has a complex spatial structure with a noticeable predominance of the amplitudes of baroclinic waves of the diurnal period and the main extrema located on the shelf opposite Cape Elizabeth, Okhinsky Isthmus and Cape Patience. The implemented approach to mapping the amplitudes of internal tides can be applied to other shelf areas of the seas of the Russian Federation and used for predictions of these phenomena, including engineering assessments for the design and operation of marine infrastructure.

Keywords

baroclinic waves, Euler equations, fully nonlinear model, Sea of Okhotsk

References

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