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Gravity wave amplitude changes observed in different airglow emissions: influence of wave breaking and observational selection

Schmidt, Carsten and Wüst, Sabine and Hannawald, Patrick and Bittner, Michael (2015) Gravity wave amplitude changes observed in different airglow emissions: influence of wave breaking and observational selection. EGU General Assembly 2016, 17.–22. April 2016, Wien, Österreich.

Full text not available from this repository.

Abstract

The upper mesosphere lower thermosphere region is well known for enhanced gravity wave breaking. Airglow emissions originating in this height region provide a good possibility for detailed studies of gravity wave behavior in this altitude. Therefore, rotational temperatures and intensities of the OH(3-1), OH(4-2), OH(6-2) and O2b(0-1)-transitions recorded at the NDMC (Network for the Detection of Mesospheric Change) site Oberpfaffenhofen (48.1N, 10.3E), Germany are examined. First results indicate, that both significant amplitude growth from the lower (87km) OH airglow emissions to the higher (95km) O2 airglow emissions of more than 100% as well as strong damping can be observed. On several occasions OH- and O2-emissions show completely independent behavior – probably related to the complete breakup of a gravity wave. These amplitude changes are set into relation to emission layer height, vertical wavelength, absolute temperature and potential seasonal dependence. Observations from further NDMC sites in France, Germany and Austria are used to discuss the evolution of these waves on horizontal scales from 100km to 1000km.

Item URL in elib:https://elib.dlr.de/108388/
Document Type:Conference or Workshop Item (Speech)
Title:Gravity wave amplitude changes observed in different airglow emissions: influence of wave breaking and observational selection
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schmidt, Carstencarsten.schmidt (at) dlr.dehttps://orcid.org/0000-0002-9580-724X
Wüst, Sabinesabine.wuest (at) dlr.deUNSPECIFIED
Hannawald, Patrickpatrick.hannawald (at) physik.uni-augsburg.deUNSPECIFIED
Bittner, MichaelMichael.Bittner (at) dlr.deUNSPECIFIED
Date:2015
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Airglow, MLT-region, gravity wave
Event Title:EGU General Assembly 2016
Event Location:Wien, Österreich
Event Type:international Conference
Event Dates:17.–22. April 2016
Organizer:European Geosciences Union
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Datenprodukte für Klima- und Atmosphärenanwendungen (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Atmosphere
Deposited By: Schmidt, Carsten
Deposited On:28 Nov 2016 11:22
Last Modified:28 Nov 2016 11:22

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