Analysis of the performance of a ship-borne scanning wind lidar in the Arctic and Antarctic
In the present study a non-motion-stabilized scanning Doppler lidar was operated on board of RV Polarstern in the Arctic (June 2014) and Antarctic (December 2015–January 2016). This is the first time that such a system measured on an icebreaker in the Antarctic. A method for a motion correction of t...
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ftdoajarticles:oai:doaj.org/article:0402c5298a5c4378adcd2c3425c0524e 2023-05-15T13:44:14+02:00 Analysis of the performance of a ship-borne scanning wind lidar in the Arctic and Antarctic R. Zentek S. H. E. Kohnemann G. Heinemann 2018-10-01T00:00:00Z https://doi.org/10.5194/amt-11-5781-2018 https://doaj.org/article/0402c5298a5c4378adcd2c3425c0524e EN eng Copernicus Publications https://www.atmos-meas-tech.net/11/5781/2018/amt-11-5781-2018.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 doi:10.5194/amt-11-5781-2018 1867-1381 1867-8548 https://doaj.org/article/0402c5298a5c4378adcd2c3425c0524e Atmospheric Measurement Techniques, Vol 11, Pp 5781-5795 (2018) Environmental engineering TA170-171 Earthwork. Foundations TA715-787 article 2018 ftdoajarticles https://doi.org/10.5194/amt-11-5781-2018 2022-12-30T21:14:38Z In the present study a non-motion-stabilized scanning Doppler lidar was operated on board of RV Polarstern in the Arctic (June 2014) and Antarctic (December 2015–January 2016). This is the first time that such a system measured on an icebreaker in the Antarctic. A method for a motion correction of the data in the post-processing is presented. The wind calculation is based on vertical azimuth display (VAD) scans with eight directions that pass a quality control. Additionally a method for an empirical signal-to-noise ratio (SNR) threshold is presented, which can be calculated for individual measurement set-ups. Lidar wind profiles are compared to total of about 120 radiosonde profiles and also to wind measurements of the ship. The performance of the lidar measurements in comparison with radio soundings generally shows small root mean square deviation (bias) for wind speed of around 1 m s −1 (0.1 m s −1 ) and for wind direction of around 10° (1°). The post-processing of the non-motion-stabilized data shows a comparably high quality to studies with motion-stabilized systems. Two case studies show that a flexible change in SNR threshold can be beneficial for special situations. Further the studies reveal that short-lived low-level jets in the atmospheric boundary layer can be captured by lidar measurements with a high temporal resolution in contrast to routine radio soundings. The present study shows that a non-motion-stabilized Doppler lidar can be operated successfully on an icebreaker. It presents a processing chain including quality control tests and error quantification, which is useful for further measurement campaigns. Article in Journal/Newspaper Antarc* Antarctic Arctic Icebreaker Directory of Open Access Journals: DOAJ Articles Antarctic Arctic The Antarctic Atmospheric Measurement Techniques 11 10 5781 5795 |
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 R. Zentek S. H. E. Kohnemann G. Heinemann Analysis of the performance of a ship-borne scanning wind lidar in the Arctic and Antarctic |
topic_facet |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
description |
In the present study a non-motion-stabilized scanning Doppler lidar was operated on board of RV Polarstern in the Arctic (June 2014) and Antarctic (December 2015–January 2016). This is the first time that such a system measured on an icebreaker in the Antarctic. A method for a motion correction of the data in the post-processing is presented. The wind calculation is based on vertical azimuth display (VAD) scans with eight directions that pass a quality control. Additionally a method for an empirical signal-to-noise ratio (SNR) threshold is presented, which can be calculated for individual measurement set-ups. Lidar wind profiles are compared to total of about 120 radiosonde profiles and also to wind measurements of the ship. The performance of the lidar measurements in comparison with radio soundings generally shows small root mean square deviation (bias) for wind speed of around 1 m s −1 (0.1 m s −1 ) and for wind direction of around 10° (1°). The post-processing of the non-motion-stabilized data shows a comparably high quality to studies with motion-stabilized systems. Two case studies show that a flexible change in SNR threshold can be beneficial for special situations. Further the studies reveal that short-lived low-level jets in the atmospheric boundary layer can be captured by lidar measurements with a high temporal resolution in contrast to routine radio soundings. The present study shows that a non-motion-stabilized Doppler lidar can be operated successfully on an icebreaker. It presents a processing chain including quality control tests and error quantification, which is useful for further measurement campaigns. |
format |
Article in Journal/Newspaper |
author |
R. Zentek S. H. E. Kohnemann G. Heinemann |
author_facet |
R. Zentek S. H. E. Kohnemann G. Heinemann |
author_sort |
R. Zentek |
title |
Analysis of the performance of a ship-borne scanning wind lidar in the Arctic and Antarctic |
title_short |
Analysis of the performance of a ship-borne scanning wind lidar in the Arctic and Antarctic |
title_full |
Analysis of the performance of a ship-borne scanning wind lidar in the Arctic and Antarctic |
title_fullStr |
Analysis of the performance of a ship-borne scanning wind lidar in the Arctic and Antarctic |
title_full_unstemmed |
Analysis of the performance of a ship-borne scanning wind lidar in the Arctic and Antarctic |
title_sort |
analysis of the performance of a ship-borne scanning wind lidar in the arctic and antarctic |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/amt-11-5781-2018 https://doaj.org/article/0402c5298a5c4378adcd2c3425c0524e |
geographic |
Antarctic Arctic The Antarctic |
geographic_facet |
Antarctic Arctic The Antarctic |
genre |
Antarc* Antarctic Arctic Icebreaker |
genre_facet |
Antarc* Antarctic Arctic Icebreaker |
op_source |
Atmospheric Measurement Techniques, Vol 11, Pp 5781-5795 (2018) |
op_relation |
https://www.atmos-meas-tech.net/11/5781/2018/amt-11-5781-2018.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 doi:10.5194/amt-11-5781-2018 1867-1381 1867-8548 https://doaj.org/article/0402c5298a5c4378adcd2c3425c0524e |
op_doi |
https://doi.org/10.5194/amt-11-5781-2018 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
11 |
container_issue |
10 |
container_start_page |
5781 |
op_container_end_page |
5795 |
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