Application of the shipborne remote sensing supersite OCEANET for profiling of Arctic aerosols and clouds during Polarstern cruise PS106
From 25 May to 21 July 2017, the research vessel Polarstern performed the cruise PS106 to the high Arctic in the region north and northeast of Svalbard. The mobile remote-sensing platform OCEANET was deployed aboard Polarstern . Within a single container, OCEANET houses state-of-the-art remote-sensi...
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ftdoajarticles:oai:doaj.org/article:6d4a30c7b36f472390b6edf8be69b166 2023-05-15T14:58:01+02:00 Application of the shipborne remote sensing supersite OCEANET for profiling of Arctic aerosols and clouds during Polarstern cruise PS106 H. J. Griesche P. Seifert A. Ansmann H. Baars C. Barrientos Velasco J. Bühl R. Engelmann M. Radenz Y. Zhenping A. Macke 2020-10-01T00:00:00Z https://doi.org/10.5194/amt-13-5335-2020 https://doaj.org/article/6d4a30c7b36f472390b6edf8be69b166 EN eng Copernicus Publications https://amt.copernicus.org/articles/13/5335/2020/amt-13-5335-2020.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 doi:10.5194/amt-13-5335-2020 1867-1381 1867-8548 https://doaj.org/article/6d4a30c7b36f472390b6edf8be69b166 Atmospheric Measurement Techniques, Vol 13, Pp 5335-5358 (2020) Environmental engineering TA170-171 Earthwork. Foundations TA715-787 article 2020 ftdoajarticles https://doi.org/10.5194/amt-13-5335-2020 2022-12-31T11:25:45Z From 25 May to 21 July 2017, the research vessel Polarstern performed the cruise PS106 to the high Arctic in the region north and northeast of Svalbard. The mobile remote-sensing platform OCEANET was deployed aboard Polarstern . Within a single container, OCEANET houses state-of-the-art remote-sensing equipment, including a multiwavelength Raman polarization lidar Polly XT and a 14-channel microwave radiometer HATPRO (Humidity And Temperature PROfiler). For the cruise PS106, the measurements were supplemented by a motion-stabilized 35 GHz cloud radar Mira-35. This paper describes the treatment of technical challenges which were immanent during the deployment of OCEANET in the high Arctic. This includes the description of the motion stabilization of the cloud radar Mira-35 to ensure vertical-pointing observations aboard the moving Polarstern as well as the applied correction of the vessels heave rate to provide valid Doppler velocities. The correction ensured a leveling accuracy of ±0.5 ∘ during transits through the ice and an ice floe camp. The applied heave correction reduced the signal induced by the vertical movement of the cloud radar in the PSD of the Doppler velocity by a factor of 15. Low-level clouds, in addition, frequently prevented a continuous analysis of cloud conditions from synergies of lidar and radar within Cloudnet, because the technically determined lowest detection height of Mira-35 was 165 m above sea level. To overcome this obstacle, an approach for identification of the cloud presence solely based on data from the near-field receiver of Polly XT at heights from 50 m and 165 m above sea level is presented. We found low-level stratus clouds, which were below the lowest detection range of most automatic ground-based remote-sensing instruments during 25 % of the observation time. We present case studies of aerosol and cloud studies to introduce the capabilities of the data set. In addition, new approaches for ice crystal effective radius and eddy dissipation rates from cloud radar measurements ... Article in Journal/Newspaper Arctic Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Svalbard Mira ENVELOPE(10.500,10.500,-70.417,-70.417) Atmospheric Measurement Techniques 13 10 5335 5358 |
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 H. J. Griesche P. Seifert A. Ansmann H. Baars C. Barrientos Velasco J. Bühl R. Engelmann M. Radenz Y. Zhenping A. Macke Application of the shipborne remote sensing supersite OCEANET for profiling of Arctic aerosols and clouds during Polarstern cruise PS106 |
topic_facet |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
description |
From 25 May to 21 July 2017, the research vessel Polarstern performed the cruise PS106 to the high Arctic in the region north and northeast of Svalbard. The mobile remote-sensing platform OCEANET was deployed aboard Polarstern . Within a single container, OCEANET houses state-of-the-art remote-sensing equipment, including a multiwavelength Raman polarization lidar Polly XT and a 14-channel microwave radiometer HATPRO (Humidity And Temperature PROfiler). For the cruise PS106, the measurements were supplemented by a motion-stabilized 35 GHz cloud radar Mira-35. This paper describes the treatment of technical challenges which were immanent during the deployment of OCEANET in the high Arctic. This includes the description of the motion stabilization of the cloud radar Mira-35 to ensure vertical-pointing observations aboard the moving Polarstern as well as the applied correction of the vessels heave rate to provide valid Doppler velocities. The correction ensured a leveling accuracy of ±0.5 ∘ during transits through the ice and an ice floe camp. The applied heave correction reduced the signal induced by the vertical movement of the cloud radar in the PSD of the Doppler velocity by a factor of 15. Low-level clouds, in addition, frequently prevented a continuous analysis of cloud conditions from synergies of lidar and radar within Cloudnet, because the technically determined lowest detection height of Mira-35 was 165 m above sea level. To overcome this obstacle, an approach for identification of the cloud presence solely based on data from the near-field receiver of Polly XT at heights from 50 m and 165 m above sea level is presented. We found low-level stratus clouds, which were below the lowest detection range of most automatic ground-based remote-sensing instruments during 25 % of the observation time. We present case studies of aerosol and cloud studies to introduce the capabilities of the data set. In addition, new approaches for ice crystal effective radius and eddy dissipation rates from cloud radar measurements ... |
format |
Article in Journal/Newspaper |
author |
H. J. Griesche P. Seifert A. Ansmann H. Baars C. Barrientos Velasco J. Bühl R. Engelmann M. Radenz Y. Zhenping A. Macke |
author_facet |
H. J. Griesche P. Seifert A. Ansmann H. Baars C. Barrientos Velasco J. Bühl R. Engelmann M. Radenz Y. Zhenping A. Macke |
author_sort |
H. J. Griesche |
title |
Application of the shipborne remote sensing supersite OCEANET for profiling of Arctic aerosols and clouds during Polarstern cruise PS106 |
title_short |
Application of the shipborne remote sensing supersite OCEANET for profiling of Arctic aerosols and clouds during Polarstern cruise PS106 |
title_full |
Application of the shipborne remote sensing supersite OCEANET for profiling of Arctic aerosols and clouds during Polarstern cruise PS106 |
title_fullStr |
Application of the shipborne remote sensing supersite OCEANET for profiling of Arctic aerosols and clouds during Polarstern cruise PS106 |
title_full_unstemmed |
Application of the shipborne remote sensing supersite OCEANET for profiling of Arctic aerosols and clouds during Polarstern cruise PS106 |
title_sort |
application of the shipborne remote sensing supersite oceanet for profiling of arctic aerosols and clouds during polarstern cruise ps106 |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/amt-13-5335-2020 https://doaj.org/article/6d4a30c7b36f472390b6edf8be69b166 |
long_lat |
ENVELOPE(10.500,10.500,-70.417,-70.417) |
geographic |
Arctic Svalbard Mira |
geographic_facet |
Arctic Svalbard Mira |
genre |
Arctic Svalbard |
genre_facet |
Arctic Svalbard |
op_source |
Atmospheric Measurement Techniques, Vol 13, Pp 5335-5358 (2020) |
op_relation |
https://amt.copernicus.org/articles/13/5335/2020/amt-13-5335-2020.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 doi:10.5194/amt-13-5335-2020 1867-1381 1867-8548 https://doaj.org/article/6d4a30c7b36f472390b6edf8be69b166 |
op_doi |
https://doi.org/10.5194/amt-13-5335-2020 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
13 |
container_issue |
10 |
container_start_page |
5335 |
op_container_end_page |
5358 |
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1766330107563081728 |