Simultaneous and co-located wind measurements in the middle atmosphere by lidar and rocket-borne techniques
We present the first comparison of a new lidar technique to measure winds in the middle atmosphere, called DoRIS (Doppler Rayleigh Iodine Spectrometer), with a rocket-borne in situ method, which relies on measuring the horizontal drift of a target (“starute”) by a tracking radar. The launches took p...
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2016
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ftdoajarticles:oai:doaj.org/article:109e2a34090f49f2b71651cf56a4fb75 2023-05-15T13:25:43+02:00 Simultaneous and co-located wind measurements in the middle atmosphere by lidar and rocket-borne techniques F.-J. Lübken G. Baumgarten J. Hildebrand F. J. Schmidlin 2016-08-01T00:00:00Z https://doi.org/10.5194/amt-9-3911-2016 https://doaj.org/article/109e2a34090f49f2b71651cf56a4fb75 EN eng Copernicus Publications http://www.atmos-meas-tech.net/9/3911/2016/amt-9-3911-2016.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 1867-1381 1867-8548 doi:10.5194/amt-9-3911-2016 https://doaj.org/article/109e2a34090f49f2b71651cf56a4fb75 Atmospheric Measurement Techniques, Vol 9, Iss 8, Pp 3911-3919 (2016) Environmental engineering TA170-171 Earthwork. Foundations TA715-787 article 2016 ftdoajarticles https://doi.org/10.5194/amt-9-3911-2016 2022-12-31T02:05:02Z We present the first comparison of a new lidar technique to measure winds in the middle atmosphere, called DoRIS (Doppler Rayleigh Iodine Spectrometer), with a rocket-borne in situ method, which relies on measuring the horizontal drift of a target (“starute”) by a tracking radar. The launches took place from the Andøya Space Center (ASC), very close to the ALOMAR observatory (Arctic Lidar Observatory for Middle Atmosphere Research) at 69° N. DoRIS is part of a steerable twin lidar system installed at ALOMAR. The observations were made simultaneously and with a horizontal distance between the two lidar beams and the starute trajectories of typically 0–40 km only. DoRIS measured winds from 14 March 2015, 17:00 UTC, to 15 March 2015, 11:30 UTC. A total of eight starute flights were launched successfully from 14 March, 19:00 UTC, to 15 March, 00:19 UTC. In general there is excellent agreement between DoRIS and the in situ measurements, considering the combined range of uncertainties. This concerns not only the general height structures of zonal and meridional winds and their temporal developments, but also some wavy structures. Considering the comparison between all starute flights and all DoRIS observations in a time period of ±20 min around each individual starute flight, we arrive at mean differences of typically ±5–10 m s −1 for both wind components. Part of the remaining differences are most likely due to the detection of different wave fronts of gravity waves. There is no systematic difference between DoRIS and the in situ observations above 30 km. Below ∼ 30 km, winds from DoRIS are systematically too large by up to 10–20 m s −1 , which can be explained by the presence of aerosols. This is proven by deriving the backscatter ratios at two different wavelengths. These ratios are larger than unity, which is an indication of the presence of aerosols. Article in Journal/Newspaper Andøya Arctic Directory of Open Access Journals: DOAJ Articles Arctic Andøya ENVELOPE(13.982,13.982,68.185,68.185) Alomar ENVELOPE(-67.083,-67.083,-68.133,-68.133) Atmospheric Measurement Techniques 9 8 3911 3919 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
spellingShingle |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 F.-J. Lübken G. Baumgarten J. Hildebrand F. J. Schmidlin Simultaneous and co-located wind measurements in the middle atmosphere by lidar and rocket-borne techniques |
topic_facet |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
description |
We present the first comparison of a new lidar technique to measure winds in the middle atmosphere, called DoRIS (Doppler Rayleigh Iodine Spectrometer), with a rocket-borne in situ method, which relies on measuring the horizontal drift of a target (“starute”) by a tracking radar. The launches took place from the Andøya Space Center (ASC), very close to the ALOMAR observatory (Arctic Lidar Observatory for Middle Atmosphere Research) at 69° N. DoRIS is part of a steerable twin lidar system installed at ALOMAR. The observations were made simultaneously and with a horizontal distance between the two lidar beams and the starute trajectories of typically 0–40 km only. DoRIS measured winds from 14 March 2015, 17:00 UTC, to 15 March 2015, 11:30 UTC. A total of eight starute flights were launched successfully from 14 March, 19:00 UTC, to 15 March, 00:19 UTC. In general there is excellent agreement between DoRIS and the in situ measurements, considering the combined range of uncertainties. This concerns not only the general height structures of zonal and meridional winds and their temporal developments, but also some wavy structures. Considering the comparison between all starute flights and all DoRIS observations in a time period of ±20 min around each individual starute flight, we arrive at mean differences of typically ±5–10 m s −1 for both wind components. Part of the remaining differences are most likely due to the detection of different wave fronts of gravity waves. There is no systematic difference between DoRIS and the in situ observations above 30 km. Below ∼ 30 km, winds from DoRIS are systematically too large by up to 10–20 m s −1 , which can be explained by the presence of aerosols. This is proven by deriving the backscatter ratios at two different wavelengths. These ratios are larger than unity, which is an indication of the presence of aerosols. |
format |
Article in Journal/Newspaper |
author |
F.-J. Lübken G. Baumgarten J. Hildebrand F. J. Schmidlin |
author_facet |
F.-J. Lübken G. Baumgarten J. Hildebrand F. J. Schmidlin |
author_sort |
F.-J. Lübken |
title |
Simultaneous and co-located wind measurements in the middle atmosphere by lidar and rocket-borne techniques |
title_short |
Simultaneous and co-located wind measurements in the middle atmosphere by lidar and rocket-borne techniques |
title_full |
Simultaneous and co-located wind measurements in the middle atmosphere by lidar and rocket-borne techniques |
title_fullStr |
Simultaneous and co-located wind measurements in the middle atmosphere by lidar and rocket-borne techniques |
title_full_unstemmed |
Simultaneous and co-located wind measurements in the middle atmosphere by lidar and rocket-borne techniques |
title_sort |
simultaneous and co-located wind measurements in the middle atmosphere by lidar and rocket-borne techniques |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/amt-9-3911-2016 https://doaj.org/article/109e2a34090f49f2b71651cf56a4fb75 |
long_lat |
ENVELOPE(13.982,13.982,68.185,68.185) ENVELOPE(-67.083,-67.083,-68.133,-68.133) |
geographic |
Arctic Andøya Alomar |
geographic_facet |
Arctic Andøya Alomar |
genre |
Andøya Arctic |
genre_facet |
Andøya Arctic |
op_source |
Atmospheric Measurement Techniques, Vol 9, Iss 8, Pp 3911-3919 (2016) |
op_relation |
http://www.atmos-meas-tech.net/9/3911/2016/amt-9-3911-2016.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 1867-1381 1867-8548 doi:10.5194/amt-9-3911-2016 https://doaj.org/article/109e2a34090f49f2b71651cf56a4fb75 |
op_doi |
https://doi.org/10.5194/amt-9-3911-2016 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
9 |
container_issue |
8 |
container_start_page |
3911 |
op_container_end_page |
3919 |
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1766387538414534656 |