Acoustic-gravity waves in the atmosphere generated by infragravity waves in the ocean

Godin, Oleg A; Zabotin, Nikolay A; Bullett, Terence W

doi:10.1186/s40623-015-0212-4

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Acoustic-gravity waves in the atmosphere generated by infragravity waves in the ocean

2015
By Godin, Oleg A ; Zabotin, Nikolay A ; Bullett, Terence W
Source: Earth Planets and Space, 67, 47.

[PDF-2.57 MB]

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Journal Title:

Earth Planets and Space
Personal Author:

Godin, Oleg A ; Zabotin, Nikolay A ; Bullett, Terence W

Godin, Oleg A ; Zabotin, Nikolay A ; Bullett, Terence W Less -
NOAA Program & Office:

NESDIS (National Environmental Satellite, Data, and Information Service) ; OAR (Oceanic and Atmospheric Research) ; NCEI (National Centers for Environmental Information) ; ESRL (Earth System Research Laboratory)

NESDIS (National Environmental Satellite, Data, and Information Service) ; OAR (Oceanic and Atmospheric Research) ; NCEI (National Centers for Environmental Information) ; ESRL (Earth System Research Laboratory) Less -
Description:

Infragravity waves are surface gravity waves in the ocean with periods longer than approximately 30 s. Infragravity waves propagate transoceanic distances and, because of their long wavelengths, provide a mechanism for coupling wave processes in the ocean, atmosphere, and the solid Earth. Here, we present a strict physical justification for the hypothesis that background ocean waves may generate waves in the upper atmosphere. We show that, at frequencies below a certain transition frequency of about 3 mHz, infragravity waves continuously radiate their energy into the upper atmosphere in the form of acoustic-gravity waves. Based on ionospheric observations and estimates of the fluxes of the mechanical energy and momentum from the deep ocean, we conclude that acoustic-gravity waves of oceanic origin may have an observable impact on the upper atmosphere. We anticipate our work to be a starting point for a detailed analysis of global manifestations of the ocean-generated background acoustic-gravity waves.
Source:

Earth Planets and Space, 67, 47.
DOI:

https://doi.org/10.1186/s40623-015-0212-4
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Journal Article
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CC BY
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urn:sha256:846938fc72c4d8411424f58b24c8f9b74dc5988f19a02583f18e70016aa11dba
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Acoustic-gravity waves in the atmosphere generated by infragravity waves in the ocean

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