Gravity wave propagation through a large semidiurnal tide and instabilities in the mesosphere and lower thermosphere during the winter 2003 MaCWAVE rocket campaign
The winter MaCWAVE (Mountain and convective waves ascending vertically) rocket campaign took place in January2003 at Esrange, Sweden and the ALOMAR observatory in Andenes, Norway. The campaign combined balloon, lidar, radar, and rocket measurements to produce full temperature and wind profiles from...
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ftdoajarticles:oai:doaj.org/article:c040f72779ae4e3ba21fc06274586c41 2023-05-15T13:25:21+02:00 Gravity wave propagation through a large semidiurnal tide and instabilities in the mesosphere and lower thermosphere during the winter 2003 MaCWAVE rocket campaign B. P. Williams D. C. Fritts C. Y. She R. A. Goldberg 2006-07-01T00:00:00Z https://doi.org/10.5194/angeo-24-1199-2006 https://doaj.org/article/c040f72779ae4e3ba21fc06274586c41 EN eng Copernicus Publications https://www.ann-geophys.net/24/1199/2006/angeo-24-1199-2006.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-24-1199-2006 0992-7689 1432-0576 https://doaj.org/article/c040f72779ae4e3ba21fc06274586c41 Annales Geophysicae, Vol 24, Pp 1199-1208 (2006) Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 article 2006 ftdoajarticles https://doi.org/10.5194/angeo-24-1199-2006 2022-12-31T15:55:38Z The winter MaCWAVE (Mountain and convective waves ascending vertically) rocket campaign took place in January2003 at Esrange, Sweden and the ALOMAR observatory in Andenes, Norway. The campaign combined balloon, lidar, radar, and rocket measurements to produce full temperature and wind profiles from the ground to 105 km. This paper will investigate gravity wave propagation in the mesosphere and lower thermosphere using data from the Weber sodium lidar on 28–29January 2003. A very large semidiurnal tide was present in the zonal wind above 80 km that grew to a 90 m/s amplitude at 100 km. The superposition of smaller-scale gravity waves and the tide caused small regions of possible convective or shear instabilities to form along the downward progressing phase fronts of the tide. The gravity waves had periods ranging from the Nyquist period of 30 min up to 4 h, vertical wavelengths ranging from 7 km to more than 20 km, and the frequency spectra had the expected –5/3 slope. The dominant gravity waves had long vertical wavelengths and experienced rapid downward phase progression. The gravity wave variance grew exponentially with height up from 86 to 94 km, consistent with the measured scale height, suggesting that the waves were not dissipated strongly by the tidal gradients and resulting unstable regions in this altitude range. Article in Journal/Newspaper Andenes Directory of Open Access Journals: DOAJ Articles Norway Esrange ENVELOPE(21.117,21.117,67.883,67.883) Alomar ENVELOPE(-67.083,-67.083,-68.133,-68.133) Annales Geophysicae 24 4 1199 1208 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 B. P. Williams D. C. Fritts C. Y. She R. A. Goldberg Gravity wave propagation through a large semidiurnal tide and instabilities in the mesosphere and lower thermosphere during the winter 2003 MaCWAVE rocket campaign |
topic_facet |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
description |
The winter MaCWAVE (Mountain and convective waves ascending vertically) rocket campaign took place in January2003 at Esrange, Sweden and the ALOMAR observatory in Andenes, Norway. The campaign combined balloon, lidar, radar, and rocket measurements to produce full temperature and wind profiles from the ground to 105 km. This paper will investigate gravity wave propagation in the mesosphere and lower thermosphere using data from the Weber sodium lidar on 28–29January 2003. A very large semidiurnal tide was present in the zonal wind above 80 km that grew to a 90 m/s amplitude at 100 km. The superposition of smaller-scale gravity waves and the tide caused small regions of possible convective or shear instabilities to form along the downward progressing phase fronts of the tide. The gravity waves had periods ranging from the Nyquist period of 30 min up to 4 h, vertical wavelengths ranging from 7 km to more than 20 km, and the frequency spectra had the expected –5/3 slope. The dominant gravity waves had long vertical wavelengths and experienced rapid downward phase progression. The gravity wave variance grew exponentially with height up from 86 to 94 km, consistent with the measured scale height, suggesting that the waves were not dissipated strongly by the tidal gradients and resulting unstable regions in this altitude range. |
format |
Article in Journal/Newspaper |
author |
B. P. Williams D. C. Fritts C. Y. She R. A. Goldberg |
author_facet |
B. P. Williams D. C. Fritts C. Y. She R. A. Goldberg |
author_sort |
B. P. Williams |
title |
Gravity wave propagation through a large semidiurnal tide and instabilities in the mesosphere and lower thermosphere during the winter 2003 MaCWAVE rocket campaign |
title_short |
Gravity wave propagation through a large semidiurnal tide and instabilities in the mesosphere and lower thermosphere during the winter 2003 MaCWAVE rocket campaign |
title_full |
Gravity wave propagation through a large semidiurnal tide and instabilities in the mesosphere and lower thermosphere during the winter 2003 MaCWAVE rocket campaign |
title_fullStr |
Gravity wave propagation through a large semidiurnal tide and instabilities in the mesosphere and lower thermosphere during the winter 2003 MaCWAVE rocket campaign |
title_full_unstemmed |
Gravity wave propagation through a large semidiurnal tide and instabilities in the mesosphere and lower thermosphere during the winter 2003 MaCWAVE rocket campaign |
title_sort |
gravity wave propagation through a large semidiurnal tide and instabilities in the mesosphere and lower thermosphere during the winter 2003 macwave rocket campaign |
publisher |
Copernicus Publications |
publishDate |
2006 |
url |
https://doi.org/10.5194/angeo-24-1199-2006 https://doaj.org/article/c040f72779ae4e3ba21fc06274586c41 |
long_lat |
ENVELOPE(21.117,21.117,67.883,67.883) ENVELOPE(-67.083,-67.083,-68.133,-68.133) |
geographic |
Norway Esrange Alomar |
geographic_facet |
Norway Esrange Alomar |
genre |
Andenes |
genre_facet |
Andenes |
op_source |
Annales Geophysicae, Vol 24, Pp 1199-1208 (2006) |
op_relation |
https://www.ann-geophys.net/24/1199/2006/angeo-24-1199-2006.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-24-1199-2006 0992-7689 1432-0576 https://doaj.org/article/c040f72779ae4e3ba21fc06274586c41 |
op_doi |
https://doi.org/10.5194/angeo-24-1199-2006 |
container_title |
Annales Geophysicae |
container_volume |
24 |
container_issue |
4 |
container_start_page |
1199 |
op_container_end_page |
1208 |
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1766384855618158592 |