Equatorial waves resolved by balloon-borne Global Navigation Satellite System radio occultation in the Strateole-2 campaign
Abstract ∼ 20 km) down to 6–8 km altitude, forming an orthogonal pattern of observations over a broad area (± 400 –500 km) surrounding the flight track. The refractivity profiles show an excellent agreement of better than 0.2 % with co-located radiosonde, spaceborne COSMIC-2 RO, and reanalysis products. The 200–500 m vertical resolution and the spatial and temporal continuity of sampling make it possible to extract properties of Kelvin waves and gravity waves with vertical wavelengths as short as 2–3 km. The results illustrate the difference in the Kelvin wave period (20 vs. 16 d) in the Lagrangian versus ground-fixed reference and as much as a 20 % difference in amplitude compared to COSMIC-2, both of which impact estimates of momentum flux. A small dataset from the extra Galileo, GLONASS, and BeiDou constellations demonstrates the feasibility of nearly doubling the sampling density in planned follow-on campaigns when data with full equatorial coverage will contribute to a better estimate of wave forcing on the quasi-biennial oscillation (QBO) and improved QBO representation in models.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Equatorial waves resolved by balloon-borne Global Navigation Satellite System radio occultation in the Strateole-2 campaign ; volume:22 ; number:23 ; year:2022 ; pages:15379-15402 ; extent:24
Atmospheric chemistry and physics ; 22, Heft 23 (2022), 15379-15402 (gesamt 24)
- Urheber
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Cao, Bing
Haase, Jennifer S.
Murphy, Michael J.
Alexander, M. Joan
Bramberger, Martina
Hertzog, Albert
- DOI
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10.5194/acp-22-15379-2022
- URN
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urn:nbn:de:101:1-2022120804243735500751
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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15.08.2025, 07:36 MESZ
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Beteiligte
- Cao, Bing
- Haase, Jennifer S.
- Murphy, Michael J.
- Alexander, M. Joan
- Bramberger, Martina
- Hertzog, Albert