Abstract
The problem of the generation of internal gravity waves (IGWs) by a localized source of perturbations is considered. An oscillating source is located in the ocean with arbitrary depth distributions of the buoyancy frequency and background shear current. Integral representations of solutions are obtained under the Miles–Howard stability condition. To solve the spectral problem, a numerical algorithm is proposed for calculating the main dispersion relations, which determine the phase characteristics of the generated waves. For the characteristic distributions of the buoyancy frequency and background shear flows observed in the ocean, the results of numerical calculations of dispersion curves and phase patterns of wave fields are presented. The transformation of the phase patterns of IGW fields is studied numerically for various generation parameters.
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Funding
This work was performed on the topics of the State Task nos. АААА-А20-120011690131-7 (V.V. Bulatov and Yu.V. Vladimirov) and 0149-2019-0004, 0128-2021-0002 (I.Yu. Vladimirov), and with partial financial support from the Russian Foundation for Basic Research, project no. 20-01-00111A.
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Bulatov, V.V., Vladimirov, Y.V. & Vladimirov, I.Y. Internal Gravity Waves from an Oscillating Source in the Ocean. Izv. Atmos. Ocean. Phys. 57, 321–328 (2021). https://doi.org/10.1134/S0001433821030026
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DOI: https://doi.org/10.1134/S0001433821030026