Observation of Gravity Wave Vertical Propagation through a Mesospheric Inversion Layer
The impact of a mesospheric temperature inversion on the vertical propagation of gravity waves has been investigated using OH airglow images and ground-based Rayleigh lidar measurements carried out in December 2017 at the Haute-Provence Observatory (OHP, France, 44N). These measurements provide comp...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/13/7/1003 |
| _version_ | 1797440961185316864 |
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| author | Thurian Le Du Philippe Keckhut Alain Hauchecorne Pierre Simoneau |
| author_facet | Thurian Le Du Philippe Keckhut Alain Hauchecorne Pierre Simoneau |
| author_sort | Thurian Le Du |
| collection | DOAJ |
| description | The impact of a mesospheric temperature inversion on the vertical propagation of gravity waves has been investigated using OH airglow images and ground-based Rayleigh lidar measurements carried out in December 2017 at the Haute-Provence Observatory (OHP, France, 44N). These measurements provide complementary information that allows the vertical propagation of gravity waves to be followed. An intense mesospheric inversion layer (MIL) observed near 60 km of altitude with the lidar disappeared in the middle of the night, offering a unique opportunity to evaluate its impact on gravity wave (GW) propagation observed above the inversion with airglow cameras. With these two instruments, a wave with a 150 min period was observed and was also identified in meteorological analyses. The gravity waves’ potential energy vertical profile clearly shows the GW energy lost below the inversion altitude and a large increase of gravity wave energy above the inversion in OH airglow images with waves exhibiting higher frequency. MILs are known to cause instabilities at its top part, and this is probably the reason for the enhanced gravity waves observed above. |
| first_indexed | 2024-03-09T12:15:59Z |
| format | Article |
| id | doaj.art-8d5096499bc2477f8d0f670a11a50e77 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-09T12:15:59Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-8d5096499bc2477f8d0f670a11a50e772023-11-30T22:46:17ZengMDPI AGAtmosphere2073-44332022-06-01137100310.3390/atmos13071003Observation of Gravity Wave Vertical Propagation through a Mesospheric Inversion LayerThurian Le Du0Philippe Keckhut1Alain Hauchecorne2Pierre Simoneau3ONERA, Chemin de la Hunière, 91761 Palaiseau, FranceLATMOS/IPSL, UVSQ University Paris-Saclay, UPMC University Paris 06, CNRS, 78280 Guyancourt, FranceLATMOS/IPSL, UVSQ University Paris-Saclay, UPMC University Paris 06, CNRS, 78280 Guyancourt, FranceONERA, Chemin de la Hunière, 91761 Palaiseau, FranceThe impact of a mesospheric temperature inversion on the vertical propagation of gravity waves has been investigated using OH airglow images and ground-based Rayleigh lidar measurements carried out in December 2017 at the Haute-Provence Observatory (OHP, France, 44N). These measurements provide complementary information that allows the vertical propagation of gravity waves to be followed. An intense mesospheric inversion layer (MIL) observed near 60 km of altitude with the lidar disappeared in the middle of the night, offering a unique opportunity to evaluate its impact on gravity wave (GW) propagation observed above the inversion with airglow cameras. With these two instruments, a wave with a 150 min period was observed and was also identified in meteorological analyses. The gravity waves’ potential energy vertical profile clearly shows the GW energy lost below the inversion altitude and a large increase of gravity wave energy above the inversion in OH airglow images with waves exhibiting higher frequency. MILs are known to cause instabilities at its top part, and this is probably the reason for the enhanced gravity waves observed above.https://www.mdpi.com/2073-4433/13/7/1003nightglowgravity wavetemperature inversion |
| spellingShingle | Thurian Le Du Philippe Keckhut Alain Hauchecorne Pierre Simoneau Observation of Gravity Wave Vertical Propagation through a Mesospheric Inversion Layer Atmosphere nightglow gravity wave temperature inversion |
| title | Observation of Gravity Wave Vertical Propagation through a Mesospheric Inversion Layer |
| title_full | Observation of Gravity Wave Vertical Propagation through a Mesospheric Inversion Layer |
| title_fullStr | Observation of Gravity Wave Vertical Propagation through a Mesospheric Inversion Layer |
| title_full_unstemmed | Observation of Gravity Wave Vertical Propagation through a Mesospheric Inversion Layer |
| title_short | Observation of Gravity Wave Vertical Propagation through a Mesospheric Inversion Layer |
| title_sort | observation of gravity wave vertical propagation through a mesospheric inversion layer |
| topic | nightglow gravity wave temperature inversion |
| url | https://www.mdpi.com/2073-4433/13/7/1003 |
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