Numerical modeling of nonlinear interactions of spectral components of acoustic-gravity waves in the middle and upper atmosphere

Николай Михайлович Гаврилов, Сергей Петрович Кшевецкий

Research output

Abstract

In this study, the wave sources contain a superposition of two AGW modes with different periods, wavelengths and phase speeds. Longer-period AGW modes served as the background conditions for the shorter-period wave modes. Thus, the larger-scale AGWs can modulate amplitudes of small-scale waves. In particular, interactions of two wave modes could sharp vertical temperature gradients and make easier the wave breaking and generating turbulence. On the other hand,
small-wave wave modes might increase dissipation and modify the larger-scale modes.
Translated title of the contributionЧисленное моделирование взаимодействий спектральных компонент акустико-гравитационных волн в средней и верхней атмосфере
Original languageEnglish
Title of host publicationEGUsphere
Subtitle of host publicationEGU General Assembly, Wien, May 3-10, 2020
Place of PublicationWien
PublisherEuropean Geosciences Union
VolumeEGU2020
DOIs
Publication statusPublished - 5 May 2020
EventEGU General Assembly 2020 - General Assembly , Vienna
Duration: 3 May 20208 May 2020

Conference

ConferenceEGU General Assembly 2020
CountryAustria
CityVienna
Period3/05/208/05/20

Scopus subject areas

  • Atmospheric Science

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