Bramberger, Martina und Dörnbrack, Andreas und Wilms, Henrike und Gemsa, Steffen und Raynor, Kevin und Sharman, Robert D. (2018) Vertically Propagating Mountain Waves—A Hazard for High-Flying Aircraft? Journal of Applied Meteorology and Climatology, 57 (9), Seiten 1957-1975. American Meteorological Society. doi: 10.1175/JAMC-D-17-0340.1. ISSN 1558-8424.
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Offizielle URL: http://dx.doi.org/10.1175/JAMC-D-17-0340.1
Kurzfassung
Stall warnings at flight level 410 (12.5 km) occurred unexpectedly during a research flight of the High Altitude and Long Range Research Aircraft (HALO) over Italy on 12 January 2016. The dangerous flight situation was mitigated by pilot intervention. At the incident location, the stratosphere was characterized by large horizontal variations in the along-track wind speed and temperature. On this particular day, strong northwesterly winds in the lower troposphere in concert with an aligned polar front jet favored the excitation and vertical propagation of large-amplitude mountain waves at and above the Apennines in Italy. These mountain waves carried large vertical energy fluxes of 8 W m22 and propagated without significant dissipation from the troposphere into the stratosphere. While turbulence is a well-acknowledged hazard to aviation, this case study reveals that nonbreaking, vertically propagating mountain waves also pose a potential hazard, especially to high-flying aircraft. It is the wave-induced modulation of the ambient along-track wind speed that may decrease the aircraft speed toward the minimum needed stall speed.
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||
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Titel: | Vertically Propagating Mountain Waves—A Hazard for High-Flying Aircraft? | ||||||||||||||||||||||||||||
Autoren: |
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Datum: | 2018 | ||||||||||||||||||||||||||||
Erschienen in: | Journal of Applied Meteorology and Climatology | ||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||
Band: | 57 | ||||||||||||||||||||||||||||
DOI: | 10.1175/JAMC-D-17-0340.1 | ||||||||||||||||||||||||||||
Seitenbereich: | Seiten 1957-1975 | ||||||||||||||||||||||||||||
Verlag: | American Meteorological Society | ||||||||||||||||||||||||||||
ISSN: | 1558-8424 | ||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||
Stichwörter: | Halo, stratosphere, variations in the along-track, | ||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||||||||||||||||||
HGF - Programmthema: | Luftverkehrsmanagement und Flugbetrieb | ||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | L AO - Air Traffic Management and Operation | ||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Klima, Wetter und Umwelt (alt) | ||||||||||||||||||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Physik der Atmosphäre > Verkehrsmeteorologie Flugexperimente > Oberpfaffenhofen | ||||||||||||||||||||||||||||
Hinterlegt von: | Ziegele, Brigitte | ||||||||||||||||||||||||||||
Hinterlegt am: | 22 Aug 2018 17:58 | ||||||||||||||||||||||||||||
Letzte Änderung: | 14 Nov 2023 09:33 |
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