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  Observing mesospheric neutral wind with the Electrojet Zeeman Imaging Explorer (EZIE)

Vanhamaki, H., de Mesquita, R., Maute, A., Yee, S., Gjerloev, J., Laundal, K., Wang, W., Espy, P. (2023): Observing mesospheric neutral wind with the Electrojet Zeeman Imaging Explorer (EZIE), XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-2397

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Datensatz-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018360 Versions-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018360_2
Genre: Konferenzbeitrag

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 Urheber:
Vanhamaki, Heikki1, Autor
de Mesquita, Rafael1, Autor
Maute, Astrid1, Autor
Yee, Sam1, Autor
Gjerloev, Jesper1, Autor
Laundal, Karl1, Autor
Wang, Wenbin1, Autor
Espy, Patrick1, 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: The Electrojet Zeeman Imaging Explorer (EZIE) mission will study the auroral electrojets using remote sensing of the associated magnetic perturbations. EZIE was selected as a NASA Heliophysics mission in December 2020, and is currently under development for a launch in the winter 2024-2025. The mission consists of 3 identical 6U CubeSats, each carrying 4 compact spectropolarimeters looking downward at nadir and three cross-track directions. These instruments will measure the Zeeman splitting of molecular oxygen thermal emissions around 118 GHz. Remote sensing utilizing the Zeeman effect gives information about the magnetic field in the volume where the emissions originate, which in this case is around 80 km altitude near the mesopause. In addition to the magnetic field, also highly precise line-of-sight neutral wind and temperature measurements can be retrieved. This presentation will give an overview of the EZIE mission and details about the anticipated wind retrieval, such as expected precision, flexible observing geometry, and location. To gain further insights into the ability to capture the local wind system we use high-resolution Whole Atmosphere Community Climate Model eXtended (WACCM-X) runs to test the wind analysis algorithm. As a possible EZIE data product, we will demonstrate how 2-dimensional (latitude-longitude) maps of the horizontal wind around the satellites' paths can be obtained by fitting the line-of-sight measurements with the Spherical elementary current system (SECS) method.

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Sprache(n): eng - Englisch
 Datum: 2023
 Publikationsstatus: Final veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.57757/IUGG23-2397
 Art des Abschluß: -

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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