Thermal structure of the mesopause region during the WADIS-2 rocket campaign

Thermal structure of the mesopause region during the WADIS-2 rocket campaign

<p>This paper presents simultaneous temperature measurements by three independent instruments during the WADIS-2 rocket campaign in northern Norway (69<span class="inline-formula"><sup>∘</sup></span>&thinsp;N, 14<span class="inline-formula">...

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Main Authors: R. Wörl, B. Strelnikov, T. P. Viehl, J. Höffner, P.-D. Pautet, M. J. Taylor, Y. Zhao, F.-J. Lübken
Format: Article
Language:English
Published: Copernicus Publications 2019-01-01
Series:Atmospheric Chemistry and Physics
Online Access:https://www.atmos-chem-phys.net/19/77/2019/acp-19-77-2019.pdf
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spelling doaj-c346fa0efd42429daea491fa3821f7622020-11-24T21:14:34ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242019-01-0119778810.5194/acp-19-77-2019Thermal structure of the mesopause region during the WADIS-2 rocket campaignR. Wörl0B. Strelnikov1T. P. Viehl2J. Höffner3P.-D. Pautet4M. J. Taylor5Y. Zhao6F.-J. Lübken7Leibniz-Institute of Atmospheric Physics at the University of Rostock, Kühlungsborn, GermanyLeibniz-Institute of Atmospheric Physics at the University of Rostock, Kühlungsborn, GermanyLeibniz-Institute of Atmospheric Physics at the University of Rostock, Kühlungsborn, GermanyLeibniz-Institute of Atmospheric Physics at the University of Rostock, Kühlungsborn, GermanyCenter for Atmospheric and Space Sciences, Utah State University, Logan, Utah, USACenter for Atmospheric and Space Sciences, Utah State University, Logan, Utah, USACenter for Atmospheric and Space Sciences, Utah State University, Logan, Utah, USALeibniz-Institute of Atmospheric Physics at the University of Rostock, Kühlungsborn, Germany<p>This paper presents simultaneous temperature measurements by three independent instruments during the WADIS-2 rocket campaign in northern Norway (69<span class="inline-formula"><sup>∘</sup></span>&thinsp;N, 14<span class="inline-formula"><sup>∘</sup></span>&thinsp;E) on 5 March 2015. Vertical profiles were measured in situ with the CONE instrument. Continuous mobile IAP Fe lidar (Fe lidar) measurements during a period of 24&thinsp;<span class="inline-formula">h</span>, as well as horizontally resolved temperature maps by the Utah State University (USU) Advanced Mesospheric Temperature Mapper (AMTM) in the mesopause region, are analysed. Vertical and horizontal temperature profiles by all three instruments are in good agreement. A harmonic analysis of the Fe lidar measurements shows the presence of waves with periods of 24, 12, 8, and 6&thinsp;<span class="inline-formula">h</span>. Strong waves with amplitudes of up to 10&thinsp;<span class="inline-formula">K</span> at 8 and 6&thinsp;<span class="inline-formula">h</span> are found. The 24 and 12&thinsp;<span class="inline-formula">h</span> components play only a minor role during these observations. In contrast only a few short periodic gravity waves are found. Horizontally resolved temperatures measured with the AMTM in the hydroxyl (OH) layer are used to connect the vertical temperature profiles. In the field of view of <span class="inline-formula">200 km×160 km</span> only small deviations from the horizontal mean of the order of 5&thinsp;<span class="inline-formula">K</span> are found. Therefore only weak gravity wave signatures occurred. This suggests horizontal structures of more than 200&thinsp;<span class="inline-formula">km</span>. A comparison of Fe lidar, rocket-borne measurements, and AMTM temperatures indicates an OH centroid altitude of about 85&thinsp;<span class="inline-formula">km</span>.</p>https://www.atmos-chem-phys.net/19/77/2019/acp-19-77-2019.pdf
collection DOAJ
language English
format Article
sources DOAJ
author R. Wörl
B. Strelnikov
T. P. Viehl
J. Höffner
P.-D. Pautet
M. J. Taylor
Y. Zhao
F.-J. Lübken
spellingShingle R. Wörl
B. Strelnikov
T. P. Viehl
J. Höffner
P.-D. Pautet
M. J. Taylor
Y. Zhao
F.-J. Lübken
Thermal structure of the mesopause region during the WADIS-2 rocket campaign
Atmospheric Chemistry and Physics
author_facet R. Wörl
B. Strelnikov
T. P. Viehl
J. Höffner
P.-D. Pautet
M. J. Taylor
Y. Zhao
F.-J. Lübken
author_sort R. Wörl
title Thermal structure of the mesopause region during the WADIS-2 rocket campaign
title_short Thermal structure of the mesopause region during the WADIS-2 rocket campaign
title_full Thermal structure of the mesopause region during the WADIS-2 rocket campaign
title_fullStr Thermal structure of the mesopause region during the WADIS-2 rocket campaign
title_full_unstemmed Thermal structure of the mesopause region during the WADIS-2 rocket campaign
title_sort thermal structure of the mesopause region during the wadis-2 rocket campaign
publisher Copernicus Publications
series Atmospheric Chemistry and Physics
issn 1680-7316
1680-7324
publishDate 2019-01-01
description <p>This paper presents simultaneous temperature measurements by three independent instruments during the WADIS-2 rocket campaign in northern Norway (69<span class="inline-formula"><sup>∘</sup></span>&thinsp;N, 14<span class="inline-formula"><sup>∘</sup></span>&thinsp;E) on 5 March 2015. Vertical profiles were measured in situ with the CONE instrument. Continuous mobile IAP Fe lidar (Fe lidar) measurements during a period of 24&thinsp;<span class="inline-formula">h</span>, as well as horizontally resolved temperature maps by the Utah State University (USU) Advanced Mesospheric Temperature Mapper (AMTM) in the mesopause region, are analysed. Vertical and horizontal temperature profiles by all three instruments are in good agreement. A harmonic analysis of the Fe lidar measurements shows the presence of waves with periods of 24, 12, 8, and 6&thinsp;<span class="inline-formula">h</span>. Strong waves with amplitudes of up to 10&thinsp;<span class="inline-formula">K</span> at 8 and 6&thinsp;<span class="inline-formula">h</span> are found. The 24 and 12&thinsp;<span class="inline-formula">h</span> components play only a minor role during these observations. In contrast only a few short periodic gravity waves are found. Horizontally resolved temperatures measured with the AMTM in the hydroxyl (OH) layer are used to connect the vertical temperature profiles. In the field of view of <span class="inline-formula">200 km×160 km</span> only small deviations from the horizontal mean of the order of 5&thinsp;<span class="inline-formula">K</span> are found. Therefore only weak gravity wave signatures occurred. This suggests horizontal structures of more than 200&thinsp;<span class="inline-formula">km</span>. A comparison of Fe lidar, rocket-borne measurements, and AMTM temperatures indicates an OH centroid altitude of about 85&thinsp;<span class="inline-formula">km</span>.</p>
url https://www.atmos-chem-phys.net/19/77/2019/acp-19-77-2019.pdf
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