Combined wind measurements by two different lidar instruments in the Arctic middle atmosphere
During a joint campaign in January 2009, the Rayleigh/Mie/Raman (RMR) lidar and the sodium lidar at the ALOMAR Observatory (69 N, 16 E) in Northern Norway were operated simultaneously for more than 40 h, collecting data for wind measurements in the middle atmosphere from 30 up to 110 km altitude. As...
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fttibhannoverren:oai:oa.tib.eu:123456789/5643 2023-07-30T04:01:36+02:00 Combined wind measurements by two different lidar instruments in the Arctic middle atmosphere Hildebrand, J. Baumgarten, G. Fiedler, J. Hoppe, U.-P. Kaifler, B. Lübken, F.-J. Williams, B.P. 2012 application/pdf https://oa.tib.eu/renate/handle/123456789/5643 https://doi.org/10.34657/4272 eng eng Göttingen : Copernicus ISSN:1867-1381 DOI:https://doi.org/10.5194/amt-5-2433-2012 https://doi.org/10.34657/4272 https://oa.tib.eu/renate/handle/123456789/5643 CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/ frei zugänglich Atmospheric Measurement Techniques 5 (2012), 10 calibration data set inhomogeneity laser lidar middle atmosphere observatory wind measurement Arctic Norway ddc:550 status-type:publishedVersion doc-type:article doc-type:Text 2012 fttibhannoverren https://doi.org/10.34657/427210.5194/amt-5-2433-2012 2023-07-10T16:19:36Z During a joint campaign in January 2009, the Rayleigh/Mie/Raman (RMR) lidar and the sodium lidar at the ALOMAR Observatory (69 N, 16 E) in Northern Norway were operated simultaneously for more than 40 h, collecting data for wind measurements in the middle atmosphere from 30 up to 110 km altitude. As both lidars share the same receiving telescopes, the upper altitude range of the RMR lidar and the lower altitude range of the sodium lidar overlap in the altitude region of ≈80-85 km. For this overlap region we are thus able to present the first simultaneous wind measurements derived from two different lidar instruments. The comparison of winds derived by RMR and sodium lidar is excellent for long integration times of 10 h as well as shorter ones of 1 h. Combination of data from both lidars allows identifying wavy structures between 30 and 110 km altitude, whose amplitudes increase with height. We have also performed vertical wind measurements and measurements of the same horizontal wind component using two independent lasers and telescopes of the RMR lidar and show how to use this data to calibrate and validate the wind retrieval. For the latter configuration we found a good agreement of the results but also identified inhomogeneities in the horizontal wind at about 55 km altitude of up to 20 ms-1 for an integration time of nearly 4 h. Such small-scale inhomogeneities in the horizontal wind field are an essential challenge when comparing data from different instruments. Article in Journal/Newspaper Arctic Northern Norway Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover) Arctic Norway Alomar ENVELOPE(-67.083,-67.083,-68.133,-68.133) |
institution |
Open Polar |
collection |
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover) |
op_collection_id |
fttibhannoverren |
language |
English |
topic |
calibration data set inhomogeneity laser lidar middle atmosphere observatory wind measurement Arctic Norway ddc:550 |
spellingShingle |
calibration data set inhomogeneity laser lidar middle atmosphere observatory wind measurement Arctic Norway ddc:550 Hildebrand, J. Baumgarten, G. Fiedler, J. Hoppe, U.-P. Kaifler, B. Lübken, F.-J. Williams, B.P. Combined wind measurements by two different lidar instruments in the Arctic middle atmosphere |
topic_facet |
calibration data set inhomogeneity laser lidar middle atmosphere observatory wind measurement Arctic Norway ddc:550 |
description |
During a joint campaign in January 2009, the Rayleigh/Mie/Raman (RMR) lidar and the sodium lidar at the ALOMAR Observatory (69 N, 16 E) in Northern Norway were operated simultaneously for more than 40 h, collecting data for wind measurements in the middle atmosphere from 30 up to 110 km altitude. As both lidars share the same receiving telescopes, the upper altitude range of the RMR lidar and the lower altitude range of the sodium lidar overlap in the altitude region of ≈80-85 km. For this overlap region we are thus able to present the first simultaneous wind measurements derived from two different lidar instruments. The comparison of winds derived by RMR and sodium lidar is excellent for long integration times of 10 h as well as shorter ones of 1 h. Combination of data from both lidars allows identifying wavy structures between 30 and 110 km altitude, whose amplitudes increase with height. We have also performed vertical wind measurements and measurements of the same horizontal wind component using two independent lasers and telescopes of the RMR lidar and show how to use this data to calibrate and validate the wind retrieval. For the latter configuration we found a good agreement of the results but also identified inhomogeneities in the horizontal wind at about 55 km altitude of up to 20 ms-1 for an integration time of nearly 4 h. Such small-scale inhomogeneities in the horizontal wind field are an essential challenge when comparing data from different instruments. |
format |
Article in Journal/Newspaper |
author |
Hildebrand, J. Baumgarten, G. Fiedler, J. Hoppe, U.-P. Kaifler, B. Lübken, F.-J. Williams, B.P. |
author_facet |
Hildebrand, J. Baumgarten, G. Fiedler, J. Hoppe, U.-P. Kaifler, B. Lübken, F.-J. Williams, B.P. |
author_sort |
Hildebrand, J. |
title |
Combined wind measurements by two different lidar instruments in the Arctic middle atmosphere |
title_short |
Combined wind measurements by two different lidar instruments in the Arctic middle atmosphere |
title_full |
Combined wind measurements by two different lidar instruments in the Arctic middle atmosphere |
title_fullStr |
Combined wind measurements by two different lidar instruments in the Arctic middle atmosphere |
title_full_unstemmed |
Combined wind measurements by two different lidar instruments in the Arctic middle atmosphere |
title_sort |
combined wind measurements by two different lidar instruments in the arctic middle atmosphere |
publisher |
Göttingen : Copernicus |
publishDate |
2012 |
url |
https://oa.tib.eu/renate/handle/123456789/5643 https://doi.org/10.34657/4272 |
long_lat |
ENVELOPE(-67.083,-67.083,-68.133,-68.133) |
geographic |
Arctic Norway Alomar |
geographic_facet |
Arctic Norway Alomar |
genre |
Arctic Northern Norway |
genre_facet |
Arctic Northern Norway |
op_source |
Atmospheric Measurement Techniques 5 (2012), 10 |
op_relation |
ISSN:1867-1381 DOI:https://doi.org/10.5194/amt-5-2433-2012 https://doi.org/10.34657/4272 https://oa.tib.eu/renate/handle/123456789/5643 |
op_rights |
CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/ frei zugänglich |
op_doi |
https://doi.org/10.34657/427210.5194/amt-5-2433-2012 |
_version_ |
1772812370465259520 |