Simultaneous lidar observations of temperatures and waves in the polar middle atmosphere on both sides of the Scandinavian mountains: a case study on 19/20 January 2003
International audience Atmospheric gravity waves have been the subject of intense research for several decades because of their extensive effects on the atmospheric circulation and the temperature structure. The U. Bonn lidar at the Esrange and the ALOMAR RMR lidar at the Andøya Rocket Range are loc...
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2004
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ftccsdartic:oai:HAL:hal-00301114v1 2023-05-15T13:25:42+02:00 Simultaneous lidar observations of temperatures and waves in the polar middle atmosphere on both sides of the Scandinavian mountains: a case study on 19/20 January 2003 Blum, U. Fricke, K. H. Baumgarten, G. Schöch, A. Physikalisches Institut Bonn Rheinische Friedrich-Wilhelms-Universität Bonn Leibniz-Institut für Atmosphärenphysik (IAP) Universität Rostock-Leibniz Association 2004-02-11 https://hal.archives-ouvertes.fr/hal-00301114 https://hal.archives-ouvertes.fr/hal-00301114/document https://hal.archives-ouvertes.fr/hal-00301114/file/acpd-4-969-2004.pdf en eng HAL CCSD European Geosciences Union hal-00301114 https://hal.archives-ouvertes.fr/hal-00301114 https://hal.archives-ouvertes.fr/hal-00301114/document https://hal.archives-ouvertes.fr/hal-00301114/file/acpd-4-969-2004.pdf info:eu-repo/semantics/OpenAccess ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.archives-ouvertes.fr/hal-00301114 Atmospheric Chemistry and Physics Discussions, European Geosciences Union, 2004, 4 (1), pp.969-989 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2004 ftccsdartic 2021-10-31T12:37:46Z International audience Atmospheric gravity waves have been the subject of intense research for several decades because of their extensive effects on the atmospheric circulation and the temperature structure. The U. Bonn lidar at the Esrange and the ALOMAR RMR lidar at the Andøya Rocket Range are located in northern Scandinavia 250 km apart on either side of the Scandinavian mountain ridge. During January and February 2003 both lidar systems conducted measurements and retrieved atmospheric temperatures. On 19/20 January 2003 simultaneous measurements for more than 7 h were possible. Although during most of the campaign time the atmosphere was not transparent for the propagation of orographically induced gravity waves, they could propagate and were observed at both lidar stations during these simultaneous measurements. The wave patterns at ALOMAR show a random distribution with time whereas at the Esrange a persistency in the wave patterns is observable. This persistency can also be found in the distribution of the most powerful vertical wavelengths. The mode values are both at about 5 km vertical wavelength, however the distributions are quite different, narrow at the Esrange containing values from ? z =2?6 km and broad at ALOMAR, covering ? z =1?12 km vertical wavelength. At both stations the waves deposit energy in the atmosphere with increasing altitude, which leads to a decrease of the observed gravity wave potential energy density with altitude. These measurements show unambigiously orographically induced gravity waves on both sides of the mountains as well as a clear difference of the characteristics of these waves, which might be caused by different excitation and propagation conditions on either side of the Scandinavian mountain ridge. Article in Journal/Newspaper Andøya Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Esrange ENVELOPE(21.117,21.117,67.883,67.883) Andøya ENVELOPE(13.982,13.982,68.185,68.185) Alomar ENVELOPE(-67.083,-67.083,-68.133,-68.133) |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Blum, U. Fricke, K. H. Baumgarten, G. Schöch, A. Simultaneous lidar observations of temperatures and waves in the polar middle atmosphere on both sides of the Scandinavian mountains: a case study on 19/20 January 2003 |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Atmospheric gravity waves have been the subject of intense research for several decades because of their extensive effects on the atmospheric circulation and the temperature structure. The U. Bonn lidar at the Esrange and the ALOMAR RMR lidar at the Andøya Rocket Range are located in northern Scandinavia 250 km apart on either side of the Scandinavian mountain ridge. During January and February 2003 both lidar systems conducted measurements and retrieved atmospheric temperatures. On 19/20 January 2003 simultaneous measurements for more than 7 h were possible. Although during most of the campaign time the atmosphere was not transparent for the propagation of orographically induced gravity waves, they could propagate and were observed at both lidar stations during these simultaneous measurements. The wave patterns at ALOMAR show a random distribution with time whereas at the Esrange a persistency in the wave patterns is observable. This persistency can also be found in the distribution of the most powerful vertical wavelengths. The mode values are both at about 5 km vertical wavelength, however the distributions are quite different, narrow at the Esrange containing values from ? z =2?6 km and broad at ALOMAR, covering ? z =1?12 km vertical wavelength. At both stations the waves deposit energy in the atmosphere with increasing altitude, which leads to a decrease of the observed gravity wave potential energy density with altitude. These measurements show unambigiously orographically induced gravity waves on both sides of the mountains as well as a clear difference of the characteristics of these waves, which might be caused by different excitation and propagation conditions on either side of the Scandinavian mountain ridge. |
author2 |
Physikalisches Institut Bonn Rheinische Friedrich-Wilhelms-Universität Bonn Leibniz-Institut für Atmosphärenphysik (IAP) Universität Rostock-Leibniz Association |
format |
Article in Journal/Newspaper |
author |
Blum, U. Fricke, K. H. Baumgarten, G. Schöch, A. |
author_facet |
Blum, U. Fricke, K. H. Baumgarten, G. Schöch, A. |
author_sort |
Blum, U. |
title |
Simultaneous lidar observations of temperatures and waves in the polar middle atmosphere on both sides of the Scandinavian mountains: a case study on 19/20 January 2003 |
title_short |
Simultaneous lidar observations of temperatures and waves in the polar middle atmosphere on both sides of the Scandinavian mountains: a case study on 19/20 January 2003 |
title_full |
Simultaneous lidar observations of temperatures and waves in the polar middle atmosphere on both sides of the Scandinavian mountains: a case study on 19/20 January 2003 |
title_fullStr |
Simultaneous lidar observations of temperatures and waves in the polar middle atmosphere on both sides of the Scandinavian mountains: a case study on 19/20 January 2003 |
title_full_unstemmed |
Simultaneous lidar observations of temperatures and waves in the polar middle atmosphere on both sides of the Scandinavian mountains: a case study on 19/20 January 2003 |
title_sort |
simultaneous lidar observations of temperatures and waves in the polar middle atmosphere on both sides of the scandinavian mountains: a case study on 19/20 january 2003 |
publisher |
HAL CCSD |
publishDate |
2004 |
url |
https://hal.archives-ouvertes.fr/hal-00301114 https://hal.archives-ouvertes.fr/hal-00301114/document https://hal.archives-ouvertes.fr/hal-00301114/file/acpd-4-969-2004.pdf |
long_lat |
ENVELOPE(21.117,21.117,67.883,67.883) ENVELOPE(13.982,13.982,68.185,68.185) ENVELOPE(-67.083,-67.083,-68.133,-68.133) |
geographic |
Esrange Andøya Alomar |
geographic_facet |
Esrange Andøya Alomar |
genre |
Andøya |
genre_facet |
Andøya |
op_source |
ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.archives-ouvertes.fr/hal-00301114 Atmospheric Chemistry and Physics Discussions, European Geosciences Union, 2004, 4 (1), pp.969-989 |
op_relation |
hal-00301114 https://hal.archives-ouvertes.fr/hal-00301114 https://hal.archives-ouvertes.fr/hal-00301114/document https://hal.archives-ouvertes.fr/hal-00301114/file/acpd-4-969-2004.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766387409910497280 |