Russian Journal of Earth Sciences Russian Journal of Earth Sciences Russian Journal of Earth Sciences 1681-1208 46592 10.2205/2019ES000667 ОРИГИНАЛЬНЫЕ СТАТЬИ ORIGINAL ARTICLES ОРИГИНАЛЬНЫЕ СТАТЬИ Far fields of internal gravity waves from a source moving in the ocean with an arbitrary buoyancy frequency distribution Far fields of internal gravity waves from a source moving in the ocean with an arbitrary buoyancy frequency distribution Bulatov V V Bulatov V V internalwave@mail.ru Vladimirov Yu V Vladimirov Yu V Vladimirov I Yu Vladimirov I Yu Ishlinsky Institute for Problems in Mechanics RAS ru Ishlinsky Institute for Problems in Mechanics RAS ru Ishlinsky Institute for Problems in Mechanics RAS ru Ishlinsky Institute for Problems in Mechanics RAS ru Shirshov Institute of Oceanology RAS ru Shirshov Institute of Oceanology RAS ru 19 5 29 10 2021 https://rjes.ru/en/nauka/article/46592/view

The generation of internal gravity waves in the ocean with an arbitrary distribution of the buoyancy frequency generated by a moving source of perturbations is considered. The basic dispersion characteristics determining the properties of the generated far wave fields are studied analytically and numerically. The results of numerical computations of internal wave fields for different generation modes are presented. It is shown that the far wave fields of a separate mode can be presented as a sum of wave trains. The article investigates the specific characteristics of how these wave trains are generated. The proposed approach can be used to model internal wave wakes from a moving typhoon.

The generation of internal gravity waves in the ocean with an arbitrary distribution of the buoyancy frequency generated by a moving source of perturbations is considered. The basic dispersion characteristics determining the properties of the generated far wave fields are studied analytically and numerically. The results of numerical computations of internal wave fields for different generation modes are presented. It is shown that the far wave fields of a separate mode can be presented as a sum of wave trains. The article investigates the specific characteristics of how these wave trains are generated. The proposed approach can be used to model internal wave wakes from a moving typhoon.

 Internal gravity waves stratified ocean far fields asymptotics Internal gravity waves stratified ocean far fields asymptotics The research was carried out in the framework of the Federal target program, projects No. 0149-2019-0004 (I. Yu. Vladimirov) and No. AAAA-A17-117021310375-7 (V. V. Bulatov, Yu. V. Vladimirov).

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