Kaifler, Natalie und Kaifler, Bernd und Dörnbrack, Andreas und Ehard, Benedikt und Rapp, Markus (2015) Gravity wave observations in the middle atmosphere at a mid-latitude southern-hemisphere site. 12th International Workshop on Layered Phenomena in the Mesopause Region, 2015-08-10 - 2015-08-13, Boulder, USA.
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Kurzfassung
The international DEEPWAVE campaign was carried out in New Zealand in 2014 to study gravity wave dynamics and vertical coupling in the lower and middle atmosphere. We present 500 hours of Rayleigh lidar measurements obtained at Lauder between June and November 2014 in the altitude range 25 to 85 km. The high temporal resolution (10 min) allows for detection of short-period gravity waves in the upper mesosphere. Gravity wave potential energy density derived from measured temperature profiles is used as proxy for gravity wave activity. It is strongly modulated by single events of one to five days duration. Gravity wave parameters like vertical wavelength and observed period are estimated using spectral analysis of wave-induced temperature perturbations and the amount of upward- and downward propagating waves is quantified. Mountain waves, detected in the lower stratosphere during strong tropospheric forcing, are generally not found to propagate to mesospheric altitudes. Short-period waves are observed in the whole altitude range, leading to large temperature perturbations in the upper mesosphere.
elib-URL des Eintrags: | https://elib.dlr.de/96797/ | ||||||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||
Titel: | Gravity wave observations in the middle atmosphere at a mid-latitude southern-hemisphere site | ||||||||||||||||||||||||
Autoren: |
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Datum: | 13 August 2015 | ||||||||||||||||||||||||
Referierte Publikation: | Nein | ||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||
Status: | akzeptierter Beitrag | ||||||||||||||||||||||||
Stichwörter: | Schwerewellen, LIDAR, Mesosphäre, DEEPWAVE | ||||||||||||||||||||||||
Veranstaltungstitel: | 12th International Workshop on Layered Phenomena in the Mesopause Region | ||||||||||||||||||||||||
Veranstaltungsort: | Boulder, USA | ||||||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz, Workshop | ||||||||||||||||||||||||
Veranstaltungsbeginn: | 10 August 2015 | ||||||||||||||||||||||||
Veranstaltungsende: | 13 August 2015 | ||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||||||||||||||
HGF - Programmthema: | Erdbeobachtung | ||||||||||||||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||||||||||
DLR - Forschungsgebiet: | R EO - Erdbeobachtung | ||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Atmosphären- und Klimaforschung | ||||||||||||||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Physik der Atmosphäre > Lidar Institut für Physik der Atmosphäre > Verkehrsmeteorologie Institut für Physik der Atmosphäre | ||||||||||||||||||||||||
Hinterlegt von: | Kaifler, Bernd | ||||||||||||||||||||||||
Hinterlegt am: | 23 Jun 2015 11:40 | ||||||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 20:02 |
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