Matthias, Vivien und Dörnbrack, Andreas und Stober, Gunter (2016) The extraordinarily strong and cold polar vortex in the early northern winter 2015/16. Geophysical Research Letters, 43 (23), Seiten 12287-12294. Wiley. doi: 10.1002/2016GL071676. ISSN 0094-8276.
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Offizielle URL: http://dx.doi.org/10.1002/2016GL071676
Kurzfassung
The Arctic polar vortex in the early winter 2015/16 was the strongest and coldest o f the la st 68 years. Using global reanalysis data, satellite observations, and mesospheric radar wind measurements over northern Scandinavia we investigate the characteristics of the early sta g e polar vortex and relate them to previous winters. We found a correlation between the planetary wave (PW) activity and the strength and temperature of the northern polar vor- tex in the stratosphere and mesosphere. In Nov/D ec 2015, a reduced PW generation in the troposphere and a stronger PW filtering in the troposphere and stratosphere, caused by stronger zonal winds in mid-latitudes, resulted in a stronger polar vortex. Thi s effect was strengthened by the equator ward shift of PWs due to the strong zonal wind in polar latitudes resulting in a southward shift of the Eliassen-Palm flux divergence and hence inducinga decreased deceleration of th e polar vortex by PWs.
elib-URL des Eintrags: | https://elib.dlr.de/108690/ | ||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||
Titel: | The extraordinarily strong and cold polar vortex in the early northern winter 2015/16 | ||||||||||||||||
Autoren: |
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Datum: | Dezember 2016 | ||||||||||||||||
Erschienen in: | Geophysical Research Letters | ||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||
Open Access: | Ja | ||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||
Band: | 43 | ||||||||||||||||
DOI: | 10.1002/2016GL071676 | ||||||||||||||||
Seitenbereich: | Seiten 12287-12294 | ||||||||||||||||
Verlag: | Wiley | ||||||||||||||||
ISSN: | 0094-8276 | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | coldest and strongest Arctic polar vortex , stratospheric planetary wave activity | ||||||||||||||||
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 | ||||||||||||||||
Hinterlegt von: | Ziegele, Brigitte | ||||||||||||||||
Hinterlegt am: | 01 Dez 2016 13:58 | ||||||||||||||||
Letzte Änderung: | 26 Mai 2020 12:29 |
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