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Title:Orographic gravity waves in OH-airglow imaging systems
Authors:ID Wuest, Sabine, Deutsches Zentrum für Luft- und Raumfahrt Oberpfaffenhofen (DLR-DFD), Germany (Author)
ID Till, Jonas, Institut für Physik, Universität Augsburg, 86159 Augsburg, Germany (Author)
ID Sedlak, René, Institut für Physik, Universität Augsburg, 86159 Augsburg, Germany (Author)
ID Hannawald, Patrick, Deutsches Zentrum für Luft- und Raumfahrt Oberpfaffenhofen (DLR-DFD), Germany (Author)
ID Schmidt, Carsten, Deutsches Zentrum für Luft- und Raumfahrt Oberpfaffenhofen (DLR-DFD), Germany (Author)
ID Stanič, Samo, Center for Astrophysics and Cosmology, University of Nova Gorica, 5270 Ajdovščina, Slovenia (Author)
ID Bittner, Michael, Deutsches Zentrum für Luft- und Raumfahrt Oberpfaffenhofen (DLR-DFD), Germany (Author)
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Language:English
Work type:Not categorized
Typology:1.12 - Published Scientific Conference Contribution Abstract
Organization:UNG - University of Nova Gorica
Abstract:Atmospheric dynamics is strongly influenced by waves on different scales. Airflow over mountains can lead to all kinds of atmospheric waves, planetary and gravity waves as well as infrasound. Under certain circumstances these waves can propagate through the atmosphere and lead to a re- distribution of energy. In the case of gravity waves, a stably stratified atmosphere is a mandatory requirement for their generation and vertical propagation. Additionally, the vertical propagation depends on the horizontal wind field. In the Alpine and pre-Alpine region, we currently operate five OH-airglow imaging systems, which allow the investigation of orographic gravity waves. Depending on tropo-, strato- and mesospheric wind and temperature, it is checked which wavelengths can propagate into the fields of view of our instruments. This is done for a whole year in order to take into account annual and semi- annual cycles in wind and temperature. Concerning the generation of gravity waves, we put our focus on our OH-airglow imager (FAIM) deployed at Otlica (45.9°N, 13.9°E), Slovenia. Here, we also have additional measurements of an OH-airglow spectrometer (GRIPS). In case studies, we investigate whether strong wind events (Bora) lead to strong gravity waves activity or enhanced potential energy density.
Keywords:Orographic gravity waves, Bora, Otlica, Slovenia, OH-airglow imaging
Publication status:Published
Year of publishing:2020
Number of pages:1
PID:20.500.12556/RUNG-5883 New window
COBISS.SI-ID:31741955 New window
DOI:https://doi.org/10.5194/egusphere-egu2020-2878 New window
NUK URN:URN:SI:UNG:REP:UJMSS2FC
Publication date in RUNG:08.10.2020
Views:2745
Downloads:0
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Record is a part of a monograph

Title:European Geophysics Union, General Assembly 2020, 4–8 May 2020
Place of publishing:Online
Publisher:Copernicus GmbH
Year of publishing:2020
Conference organizer:European Geophysics Union

Document is financed by a project

Funder:ARRS - Slovenian Research Agency
Project number:P1-0031
Name:Astrofizika osnovnih delcev

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