Lidar-Derived Aerosol Properties from Ny-Ålesund, Svalbard during the MOSAiC Spring 2020
In this work, we present Raman lidar data (from a Nd:YAG operating at 355 nm, 532 nm and 1064 nm) from the international research village Ny-Ålesund for the time period of January to April 2020 during the Arctic haze season of the MOSAiC winter. We present values of the aerosol backscatter, the lida...
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Humboldt-Universität zu Berlin
2022
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Online Access: | http://edoc.hu-berlin.de/18452/25758 https://nbn-resolving.org/urn:nbn:de:kobv:11-110-18452/25758-3 https://doi.org/10.3390/rs14112578 https://doi.org/10.18452/25073 |
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fthuberlin:oai:edoc.hu-berlin.de:18452/25758 2023-12-03T10:17:31+01:00 Lidar-Derived Aerosol Properties from Ny-Ålesund, Svalbard during the MOSAiC Spring 2020 Dube, Jonas Böckmann, Christine Ritter, Christoph Lolli, Simone 2022-05-27 application/pdf http://edoc.hu-berlin.de/18452/25758 https://nbn-resolving.org/urn:nbn:de:kobv:11-110-18452/25758-3 https://doi.org/10.3390/rs14112578 https://doi.org/10.18452/25073 eng eng Humboldt-Universität zu Berlin http://edoc.hu-berlin.de/18452/25758 urn:nbn:de:kobv:11-110-18452/25758-3 doi:10.3390/rs14112578 http://dx.doi.org/10.18452/25073 2072-4292 (CC BY 4.0) Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ aerosol Arctic haze lidar microphysical properties backtrajectories Ny-Ålesund Svalbard MOSAiC aerosol-boundary layer interactions 550 Geowissenschaften ddc:550 article doc-type:article publishedVersion 2022 fthuberlin https://doi.org/10.3390/rs1411257810.18452/25073 2023-11-05T23:36:36Z In this work, we present Raman lidar data (from a Nd:YAG operating at 355 nm, 532 nm and 1064 nm) from the international research village Ny-Ålesund for the time period of January to April 2020 during the Arctic haze season of the MOSAiC winter. We present values of the aerosol backscatter, the lidar ratio and the backscatter Ångström exponent, though the latter depends on wavelength. The aerosol polarization was generally below 2%, indicating mostly spherical particles. We observed that events with high backscatter and high lidar ratio did not coincide. In fact, the highest lidar ratios (LR > 75 sr at 532 nm) were already found by January and may have been caused by hygroscopic growth, rather than by advection of more continental aerosol. Further, we performed an inversion of the lidar data to retrieve a refractive index and a size distribution of the aerosol. Our results suggest that in the free troposphere (above ≈2500 m) the aerosol size distribution is quite constant in time, with dominance of small particles with a modal radius well below 100 nm. On the contrary, below ≈2000 m in altitude, we frequently found gradients in aerosol backscatter and even size distribution, sometimes in accordance with gradients of wind speed, humidity or elevated temperature inversions, as if the aerosol was strongly modified by vertical displacement in what we call the “mechanical boundary layer”. Finally, we present an indication that additional meteorological soundings during MOSAiC campaign did not necessarily improve the fidelity of air backtrajectories. Peer Reviewed Article in Journal/Newspaper Arctic Ny Ålesund Ny-Ålesund Svalbard Open-Access-Publikationsserver der Humboldt-Universität: edoc-Server Arctic Ny-Ålesund Svalbard Remote Sensing 14 11 2578 |
institution |
Open Polar |
collection |
Open-Access-Publikationsserver der Humboldt-Universität: edoc-Server |
op_collection_id |
fthuberlin |
language |
English |
topic |
aerosol Arctic haze lidar microphysical properties backtrajectories Ny-Ålesund Svalbard MOSAiC aerosol-boundary layer interactions 550 Geowissenschaften ddc:550 |
spellingShingle |
aerosol Arctic haze lidar microphysical properties backtrajectories Ny-Ålesund Svalbard MOSAiC aerosol-boundary layer interactions 550 Geowissenschaften ddc:550 Dube, Jonas Böckmann, Christine Ritter, Christoph Lidar-Derived Aerosol Properties from Ny-Ålesund, Svalbard during the MOSAiC Spring 2020 |
topic_facet |
aerosol Arctic haze lidar microphysical properties backtrajectories Ny-Ålesund Svalbard MOSAiC aerosol-boundary layer interactions 550 Geowissenschaften ddc:550 |
description |
In this work, we present Raman lidar data (from a Nd:YAG operating at 355 nm, 532 nm and 1064 nm) from the international research village Ny-Ålesund for the time period of January to April 2020 during the Arctic haze season of the MOSAiC winter. We present values of the aerosol backscatter, the lidar ratio and the backscatter Ångström exponent, though the latter depends on wavelength. The aerosol polarization was generally below 2%, indicating mostly spherical particles. We observed that events with high backscatter and high lidar ratio did not coincide. In fact, the highest lidar ratios (LR > 75 sr at 532 nm) were already found by January and may have been caused by hygroscopic growth, rather than by advection of more continental aerosol. Further, we performed an inversion of the lidar data to retrieve a refractive index and a size distribution of the aerosol. Our results suggest that in the free troposphere (above ≈2500 m) the aerosol size distribution is quite constant in time, with dominance of small particles with a modal radius well below 100 nm. On the contrary, below ≈2000 m in altitude, we frequently found gradients in aerosol backscatter and even size distribution, sometimes in accordance with gradients of wind speed, humidity or elevated temperature inversions, as if the aerosol was strongly modified by vertical displacement in what we call the “mechanical boundary layer”. Finally, we present an indication that additional meteorological soundings during MOSAiC campaign did not necessarily improve the fidelity of air backtrajectories. Peer Reviewed |
author2 |
Lolli, Simone |
format |
Article in Journal/Newspaper |
author |
Dube, Jonas Böckmann, Christine Ritter, Christoph |
author_facet |
Dube, Jonas Böckmann, Christine Ritter, Christoph |
author_sort |
Dube, Jonas |
title |
Lidar-Derived Aerosol Properties from Ny-Ålesund, Svalbard during the MOSAiC Spring 2020 |
title_short |
Lidar-Derived Aerosol Properties from Ny-Ålesund, Svalbard during the MOSAiC Spring 2020 |
title_full |
Lidar-Derived Aerosol Properties from Ny-Ålesund, Svalbard during the MOSAiC Spring 2020 |
title_fullStr |
Lidar-Derived Aerosol Properties from Ny-Ålesund, Svalbard during the MOSAiC Spring 2020 |
title_full_unstemmed |
Lidar-Derived Aerosol Properties from Ny-Ålesund, Svalbard during the MOSAiC Spring 2020 |
title_sort |
lidar-derived aerosol properties from ny-ålesund, svalbard during the mosaic spring 2020 |
publisher |
Humboldt-Universität zu Berlin |
publishDate |
2022 |
url |
http://edoc.hu-berlin.de/18452/25758 https://nbn-resolving.org/urn:nbn:de:kobv:11-110-18452/25758-3 https://doi.org/10.3390/rs14112578 https://doi.org/10.18452/25073 |
geographic |
Arctic Ny-Ålesund Svalbard |
geographic_facet |
Arctic Ny-Ålesund Svalbard |
genre |
Arctic Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
Arctic Ny Ålesund Ny-Ålesund Svalbard |
op_relation |
http://edoc.hu-berlin.de/18452/25758 urn:nbn:de:kobv:11-110-18452/25758-3 doi:10.3390/rs14112578 http://dx.doi.org/10.18452/25073 2072-4292 |
op_rights |
(CC BY 4.0) Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/rs1411257810.18452/25073 |
container_title |
Remote Sensing |
container_volume |
14 |
container_issue |
11 |
container_start_page |
2578 |
_version_ |
1784264471174184960 |