Oceans are a major source of waves in the thermosphere

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

doi:10.1002/2016ja022357

i

Oceans are a major source of waves in the thermosphere

2016
By Zabotin, Nikolay A. ; Godin, Oleg A. ; Bullett, Terence W.

Details

Journal Title:

Journal of Geophysical Research: Space Physics
Personal Author:

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

NESDIS (National Environmental Satellite, Data, and Information Service) ; OAR (Oceanic and Atmospheric Research) ; CIRES (Cooperative Institute for Research in Environmental Sciences) ; ESRL (Earth System Research Laboratory) ; NCEI (National Centers for Environmental Information)
Description:

Recent theoretical analysis by Godin et al. (2015) led to the suggestion that infragravity waves (IGWs, i.e., surface gravity waves in the ocean with periods longer than 30 s) can radiate acoustic‐gravity waves (AGWs) and account for a significant part of the wave activity observed in the thermosphere with periods between about 5 min and 3 h. In this paper, we report a strong experimental demonstration of thermospheric waves being driven by the ocean using data from two Deep‐ocean Assessment and Reporting of Tsunamis stations located off the US East Coast and Dynasonde radar system located at Wallops Island, Virginia. Over a 9 month observation period, variations of IGW and AGW spectral amplitudes demonstrate large, statistically significant correlation in a broad range of frequencies (0.2–3.2 mHz) and altitudes (140–190 km). Peak correlation values (~0.43) indicate that waves radiated by the ocean represent a major constituent of thermospheric wave activity.
Source:

Journal of Geophysical Research: Space Physics, 121(4), 3452-3463
DOI:

https://doi.org/10.1002/2016ja022357
ISSN:

2169-9380 ; 2169-9402
Format:

pdf
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
Rights Information:

Other
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Library
Main Document Checksum:

urn:sha-512:57766b3bd9184b45d2da7d2c16a360eeb81898d2fa889a3ef50c834b18299778172637a26bb2ca0e75b438aed50269fb05501600512464b3e17e81d2c710c8e3
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https://repository.library.noaa.gov/view/noaa/68051/noaa_68051_DS1.pdf
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[PDF - 4.71 MB ]

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