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  Examining the Wind Shear Theory of Sporadic E With ICON/MIGHTI Winds and COSMIC‐2 Radio 2 Occultation Data

Yamazaki, Y., Arras, C., Andoh, S., Miyoshi, Y., Shinagawa, H., Harding, B. J., Englert, C. R., Immel, T. J., Sobhkhiz-Miandehi, S., Stolle, C. (2022): Examining the Wind Shear Theory of Sporadic E With ICON/MIGHTI Winds and COSMIC‐2 Radio 2 Occultation Data. - Geophysical Research Letters, 49, 1, e2021GL096202.
https://doi.org/10.1029/2021GL096202

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5009200 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5009200_2
Genre: Journal Article

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 Creators:
Yamazaki, Yosuke1, Author              
Arras, Christina2, Author              
Andoh, S.3, Author
Miyoshi, Y.3, Author
Shinagawa, H.3, Author
Harding, B. J.3, Author
Englert, C. R.3, Author
Immel, T. J.3, Author
Sobhkhiz-Miandehi, Sahar1, Author              
Stolle, C., Author
Affiliations:
12.3 Geomagnetism, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146030              
21.1 Space Geodetic Techniques, 1.0 Geodesy, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146025              
3External Organizations, ou_persistent22              

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 Abstract: The wind shear theory is widely accepted as an explanation for the formation of a sporadic E (Es) layer, but the direct comparison of Es with the local wind shear has been limited due to the lack of neutral wind measurements. This study examines the role of the vertical wind shear for Es, using signal-to-noise ratio profiles from COSMIC-2 radio occultation measurements and concurrent measurements of neutral wind profiles from the Ionospheric Connection Explorer. It is observed that the Es occurrence rate and average S4 index are correlated with the negative vertical shear of the eastward wind, providing observational support for the wind shear theory. Es can be observed even when the vertical wind shear is positive, which is interpreted as metallic ion layers generated at an earlier time.

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 Dates: 2021-12-302022
 Publication Status: Finally published
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 Rev. Type: -
 Identifiers: DOI: 10.1029/2021GL096202
GFZPOF: p4 T1 Atmosphere
GFZPOFCCA: p4 CARF RemSens
OATYPE: Hybrid - DEAL Wiley
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Title: Geophysical Research Letters
Source Genre: Journal, SCI, Scopus, ab 2023 oa
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Pages: - Volume / Issue: 49 (1) Sequence Number: e2021GL096202 Start / End Page: - Identifier: ISSN: 1944-8007
ISSN: 0094-8276
CoNE: https://gfzpublic.gfz-potsdam.de/cone/journals/resource/journals182
Publisher: American Geophysical Union (AGU)