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  Gravity waves in the mesosphere lower-thermosphere region near Andes observed by airglow imaging at Rio Gallegos (51.6S), Patagonia, Argentina

Nakamura, T., Ejiri, M. K., Kogure, M., Perwitasari, S., Tomikawa, Y., Tsutsumi, M., Mizuno, A., Tsuno, K., Ogawa, T., Wada, S., Salvador, J. (2023): Gravity waves in the mesosphere lower-thermosphere region near Andes observed by airglow imaging at Rio Gallegos (51.6S), Patagonia, Argentina, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-4829

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Datensatz-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021234 Versions-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021234_1
Genre: Konferenzbeitrag

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 Urheber:
Nakamura, Takuji1, Autor
Ejiri, Mitsumu K.1, Autor
Kogure, Masaru1, Autor
Perwitasari, Septi1, Autor
Tomikawa, Yoshihiro1, Autor
Tsutsumi, Masaki1, Autor
Mizuno, Akira1, Autor
Tsuno, Katsuhiko1, Autor
Ogawa, Takayo1, Autor
Wada, Satoshi1, Autor
Salvador, Jacobo1, Autor
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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Schlagwörter: -
 Zusammenfassung: Atmospheric gravity waves play important roles in couplings in the terrestrial atmosphere and ionosphere, i.e. in the whole atmosphere, by transporting momentum and energy in vertical and horizontal directions. One of the hotspots, i.e. active source region of such gravity waves, is the area of the Andes and the Antarctic peninsula. In order to study gravity wave activity generated at this hotspot and propagating up to the MLT region, we installed an all-sky airglow camera in November 2017 at Rio Gallegos station (51.6S, 69.3W), Patagonia, Argentina. The imager at Rio Gallegos is equipped with an InGaAs array sensor, sensitive to the near-infrared (900-1700 nm), and can observe OH Meinel band airglow (~87 km altitude), obtaining an OH airglow image every 5 sec with an exposure time of 2 sec. This system has a similar specification with the five imagers of the ANtarctic Gravity Wave Instrument Network (ANGWIN) at Davis, McMurdo, Halley, Syowa and the south pole. In this presentation, we will report the results from Rio Gallegos station, by means of M-transform analysis, which quantitatively derives distributions of short-period gravity wave energy in the horizontal phase velocity domain. Also, comparison with the results from Syowa station in the Antarctic (69.0S, 39.6E) will be presented.

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Sprache(n): eng - Englisch
 Datum: 2023-07-112023-07-11
 Publikationsstatus: Final veröffentlicht
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 Ort, Verlag, Ausgabe: -
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 Identifikatoren: DOI: 10.57757/IUGG23-4829
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Veranstaltung

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Titel: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Veranstaltungsort: Berlin
Start-/Enddatum: 2023-07-11 - 2023-07-20

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Titel: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Genre der Quelle: Konferenzband
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Potsdam : GFZ German Research Centre for Geosciences
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