Derivation of vertical wavelengths of gravity waves in the MLT-region from multispectral airglow observations
We present the derivation of gravity wave vertical wavelengths from OH airglow observations of different vibrational transitions. It utilizes small phase shifts regularly observed between the OH(3-1) and OH(4-2) intensities in the spectra of the GRIPS (GRound-based Infrared P-branch Spectrometer) in...
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ftdlr:oai:elib.dlr.de:123439 2023-12-17T10:26:44+01:00 Derivation of vertical wavelengths of gravity waves in the MLT-region from multispectral airglow observations Schmidt, Carsten Dunker, Tim Sabrina, Lichtenstern Scheer, Jürgen Wüst, Sabine Hoppe, Ulf-Peter Bittner, Michael 2018-03-02 application/pdf https://elib.dlr.de/123439/ https://elib.dlr.de/123439/1/1-s2.0-S1364682617305576-main.pdf https://www.sciencedirect.com/science/article/pii/S1364682617305576 de ger Elsevier https://elib.dlr.de/123439/1/1-s2.0-S1364682617305576-main.pdf Schmidt, Carsten und Dunker, Tim und Sabrina, Lichtenstern und Scheer, Jürgen und Wüst, Sabine und Hoppe, Ulf-Peter und Bittner, Michael (2018) Derivation of vertical wavelengths of gravity waves in the MLT-region from multispectral airglow observations. Journal of Atmospheric and Solar-Terrestrial Physics (173), Seiten 119-127. Elsevier. doi:10.1016/j.jastp.2018.03.002 <https://doi.org/10.1016/j.jastp.2018.03.002>. ISSN 1364-6826. Atmosphäre Zeitschriftenbeitrag PeerReviewed 2018 ftdlr https://doi.org/10.1016/j.jastp.2018.03.002 2023-11-20T00:24:18Z We present the derivation of gravity wave vertical wavelengths from OH airglow observations of different vibrational transitions. It utilizes small phase shifts regularly observed between the OH(3-1) and OH(4-2) intensities in the spectra of the GRIPS (GRound-based Infrared P-branch Spectrometer) instruments, which record the OH airglow emissions in the wavelength range from 1.5 μm to 1.6 μm simultaneously. These phase shifts are interpreted as being due to gravity waves passing through the OH airglow layer and affecting individual vibrational transitions at slightly different times due to small differences in their emission heights. The results are compared with co-located observations of the Na-Lidar measurements acquired between 2010 and 2014 at the Arctic Lidar Observatory for Middle Atmosphere Research (ALOMAR, 69.28 N, 16.01 E), Norway. This comparison shows best agreement if the mean height difference of the OH(3-1) and OH(4-2) emission is assumed to be 540 m (1σ +- 160 m). The results are also compared with co-located observations of the OH(6-2)- and O2b(0-1)-transitions by means of spectrometer observations (TANGOO instrument, Tilting-filter spectrometer for Atmospheric Nocturnal Ground-based Oxygen & hydrOxyl emission measurements) performed from 2013 until 2016 at Oberpfaffenhofen (48.08 N, 11.27 E), Germany. For approximately 40% of all wave events observed with GRIPS in the period range from 0.25 h to 17 h, a quantitative estimate of the phase relationship between the OH(3-1) and OH(4-2) intensities can be retrieved from the spectra allowing derivation of vertical wavelengths. The retrieval performs best for wave periods below two hours (80% success rate) and worse for periods above ten hours (successful in less than 10% of the cases). The average wavelength determined from 102 events amounts to 22.9 km (1σ: 9.0 km). The corresponding mean wavelength determined from the TANGOO observations amounts to 22.6 km +- 10.5 km, if a mean separation of 6.5 km is assumed for the height difference between ... Article in Journal/Newspaper Arctic German Aerospace Center: elib - DLR electronic library Arctic Norway Tilting ENVELOPE(-54.065,-54.065,49.700,49.700) Alomar ENVELOPE(-67.083,-67.083,-68.133,-68.133) Journal of Atmospheric and Solar-Terrestrial Physics 173 119 127 |
institution |
Open Polar |
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German Aerospace Center: elib - DLR electronic library |
op_collection_id |
ftdlr |
language |
German |
topic |
Atmosphäre |
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Atmosphäre Schmidt, Carsten Dunker, Tim Sabrina, Lichtenstern Scheer, Jürgen Wüst, Sabine Hoppe, Ulf-Peter Bittner, Michael Derivation of vertical wavelengths of gravity waves in the MLT-region from multispectral airglow observations |
topic_facet |
Atmosphäre |
description |
We present the derivation of gravity wave vertical wavelengths from OH airglow observations of different vibrational transitions. It utilizes small phase shifts regularly observed between the OH(3-1) and OH(4-2) intensities in the spectra of the GRIPS (GRound-based Infrared P-branch Spectrometer) instruments, which record the OH airglow emissions in the wavelength range from 1.5 μm to 1.6 μm simultaneously. These phase shifts are interpreted as being due to gravity waves passing through the OH airglow layer and affecting individual vibrational transitions at slightly different times due to small differences in their emission heights. The results are compared with co-located observations of the Na-Lidar measurements acquired between 2010 and 2014 at the Arctic Lidar Observatory for Middle Atmosphere Research (ALOMAR, 69.28 N, 16.01 E), Norway. This comparison shows best agreement if the mean height difference of the OH(3-1) and OH(4-2) emission is assumed to be 540 m (1σ +- 160 m). The results are also compared with co-located observations of the OH(6-2)- and O2b(0-1)-transitions by means of spectrometer observations (TANGOO instrument, Tilting-filter spectrometer for Atmospheric Nocturnal Ground-based Oxygen & hydrOxyl emission measurements) performed from 2013 until 2016 at Oberpfaffenhofen (48.08 N, 11.27 E), Germany. For approximately 40% of all wave events observed with GRIPS in the period range from 0.25 h to 17 h, a quantitative estimate of the phase relationship between the OH(3-1) and OH(4-2) intensities can be retrieved from the spectra allowing derivation of vertical wavelengths. The retrieval performs best for wave periods below two hours (80% success rate) and worse for periods above ten hours (successful in less than 10% of the cases). The average wavelength determined from 102 events amounts to 22.9 km (1σ: 9.0 km). The corresponding mean wavelength determined from the TANGOO observations amounts to 22.6 km +- 10.5 km, if a mean separation of 6.5 km is assumed for the height difference between ... |
format |
Article in Journal/Newspaper |
author |
Schmidt, Carsten Dunker, Tim Sabrina, Lichtenstern Scheer, Jürgen Wüst, Sabine Hoppe, Ulf-Peter Bittner, Michael |
author_facet |
Schmidt, Carsten Dunker, Tim Sabrina, Lichtenstern Scheer, Jürgen Wüst, Sabine Hoppe, Ulf-Peter Bittner, Michael |
author_sort |
Schmidt, Carsten |
title |
Derivation of vertical wavelengths of gravity waves in the MLT-region from multispectral airglow observations |
title_short |
Derivation of vertical wavelengths of gravity waves in the MLT-region from multispectral airglow observations |
title_full |
Derivation of vertical wavelengths of gravity waves in the MLT-region from multispectral airglow observations |
title_fullStr |
Derivation of vertical wavelengths of gravity waves in the MLT-region from multispectral airglow observations |
title_full_unstemmed |
Derivation of vertical wavelengths of gravity waves in the MLT-region from multispectral airglow observations |
title_sort |
derivation of vertical wavelengths of gravity waves in the mlt-region from multispectral airglow observations |
publisher |
Elsevier |
publishDate |
2018 |
url |
https://elib.dlr.de/123439/ https://elib.dlr.de/123439/1/1-s2.0-S1364682617305576-main.pdf https://www.sciencedirect.com/science/article/pii/S1364682617305576 |
long_lat |
ENVELOPE(-54.065,-54.065,49.700,49.700) ENVELOPE(-67.083,-67.083,-68.133,-68.133) |
geographic |
Arctic Norway Tilting Alomar |
geographic_facet |
Arctic Norway Tilting Alomar |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
https://elib.dlr.de/123439/1/1-s2.0-S1364682617305576-main.pdf Schmidt, Carsten und Dunker, Tim und Sabrina, Lichtenstern und Scheer, Jürgen und Wüst, Sabine und Hoppe, Ulf-Peter und Bittner, Michael (2018) Derivation of vertical wavelengths of gravity waves in the MLT-region from multispectral airglow observations. Journal of Atmospheric and Solar-Terrestrial Physics (173), Seiten 119-127. Elsevier. doi:10.1016/j.jastp.2018.03.002 <https://doi.org/10.1016/j.jastp.2018.03.002>. ISSN 1364-6826. |
op_doi |
https://doi.org/10.1016/j.jastp.2018.03.002 |
container_title |
Journal of Atmospheric and Solar-Terrestrial Physics |
container_volume |
173 |
container_start_page |
119 |
op_container_end_page |
127 |
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1785578472092991488 |