Is the near-spherical shape the “new black” for smoke?
International audience Abstract. We examine the capability of near-spherical-shaped particles to reproduce the triple-wavelength particle linear depolarization ratio (PLDR) and lidar ratio (LR) values measured over Europe for stratospheric smoke originating from Canadian wildfires. The smoke layers...
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Online Access: | https://hal.science/hal-03320486 https://hal.science/hal-03320486/document https://hal.science/hal-03320486/file/acp-20-14005-2020.pdf https://doi.org/10.5194/acp-20-14005-2020 |
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ftunivlille:oai:HAL:hal-03320486v1 2024-06-23T07:44:59+00:00 Is the near-spherical shape the “new black” for smoke? Gialitaki, Anna Tsekeri, Alexandra Amiridis, Vassilis Ceolato, Romain Paulien, Lucas Kampouri, Anna Gkikas, Antonis Solomos, Stavros Marinou, Eleni Haarig, Moritz Baars, Holger Ansmann, Albert Lapyonok, Tatyana Lopatin, Anton Dubovik, O. Gross, Silke Wirth, Martin Tsichla, Maria Tsikoudi, Ioanna Balis, Dimitris Laboratoire d’Optique Atmosphérique - UMR 8518 (LOA) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) 2020 https://hal.science/hal-03320486 https://hal.science/hal-03320486/document https://hal.science/hal-03320486/file/acp-20-14005-2020.pdf https://doi.org/10.5194/acp-20-14005-2020 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-20-14005-2020 hal-03320486 https://hal.science/hal-03320486 https://hal.science/hal-03320486/document https://hal.science/hal-03320486/file/acp-20-14005-2020.pdf doi:10.5194/acp-20-14005-2020 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.science/hal-03320486 Atmospheric Chemistry and Physics, 2020, 20 (22), pp.14005-14021. ⟨10.5194/acp-20-14005-2020⟩ [SDE.MCG]Environmental Sciences/Global Changes [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2020 ftunivlille https://doi.org/10.5194/acp-20-14005-2020 2024-06-10T14:56:52Z International audience Abstract. We examine the capability of near-spherical-shaped particles to reproduce the triple-wavelength particle linear depolarization ratio (PLDR) and lidar ratio (LR) values measured over Europe for stratospheric smoke originating from Canadian wildfires. The smoke layers were detected both in the troposphere and the stratosphere, though in the latter case the particles presented PLDR values of almost 18 % at 532 nm as well as a strong spectral dependence from the UV to the near-IR wavelength. Although recent simulation studies of rather complicated smoke particle morphologies have shown that heavily coated smoke aggregates can produce large PLDR, herein we propose a much simpler model of compact near-spherical smoke particles. This assumption allows for the reproduction of the observed intensive optical properties of stratospheric smoke, as well as their spectral dependence. We further examine whether an extension of the current Aerosol Robotic Network (AERONET) scattering model to include the near-spherical shapes could be of benefit to the AERONET retrieval for stratospheric smoke cases associated with enhanced PLDR. Results of our study illustrate the fact that triple-wavelength PLDR and LR lidar measurements can provide us with additional insight when it comes to particle characterization. Article in Journal/Newspaper Aerosol Robotic Network LillOA (HAL Lille Open Archive, Université de Lille) Atmospheric Chemistry and Physics 20 22 14005 14021 |
institution |
Open Polar |
collection |
LillOA (HAL Lille Open Archive, Université de Lille) |
op_collection_id |
ftunivlille |
language |
English |
topic |
[SDE.MCG]Environmental Sciences/Global Changes [SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDE.MCG]Environmental Sciences/Global Changes [SDU]Sciences of the Universe [physics] Gialitaki, Anna Tsekeri, Alexandra Amiridis, Vassilis Ceolato, Romain Paulien, Lucas Kampouri, Anna Gkikas, Antonis Solomos, Stavros Marinou, Eleni Haarig, Moritz Baars, Holger Ansmann, Albert Lapyonok, Tatyana Lopatin, Anton Dubovik, O. Gross, Silke Wirth, Martin Tsichla, Maria Tsikoudi, Ioanna Balis, Dimitris Is the near-spherical shape the “new black” for smoke? |
topic_facet |
[SDE.MCG]Environmental Sciences/Global Changes [SDU]Sciences of the Universe [physics] |
description |
International audience Abstract. We examine the capability of near-spherical-shaped particles to reproduce the triple-wavelength particle linear depolarization ratio (PLDR) and lidar ratio (LR) values measured over Europe for stratospheric smoke originating from Canadian wildfires. The smoke layers were detected both in the troposphere and the stratosphere, though in the latter case the particles presented PLDR values of almost 18 % at 532 nm as well as a strong spectral dependence from the UV to the near-IR wavelength. Although recent simulation studies of rather complicated smoke particle morphologies have shown that heavily coated smoke aggregates can produce large PLDR, herein we propose a much simpler model of compact near-spherical smoke particles. This assumption allows for the reproduction of the observed intensive optical properties of stratospheric smoke, as well as their spectral dependence. We further examine whether an extension of the current Aerosol Robotic Network (AERONET) scattering model to include the near-spherical shapes could be of benefit to the AERONET retrieval for stratospheric smoke cases associated with enhanced PLDR. Results of our study illustrate the fact that triple-wavelength PLDR and LR lidar measurements can provide us with additional insight when it comes to particle characterization. |
author2 |
Laboratoire d’Optique Atmosphérique - UMR 8518 (LOA) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Gialitaki, Anna Tsekeri, Alexandra Amiridis, Vassilis Ceolato, Romain Paulien, Lucas Kampouri, Anna Gkikas, Antonis Solomos, Stavros Marinou, Eleni Haarig, Moritz Baars, Holger Ansmann, Albert Lapyonok, Tatyana Lopatin, Anton Dubovik, O. Gross, Silke Wirth, Martin Tsichla, Maria Tsikoudi, Ioanna Balis, Dimitris |
author_facet |
Gialitaki, Anna Tsekeri, Alexandra Amiridis, Vassilis Ceolato, Romain Paulien, Lucas Kampouri, Anna Gkikas, Antonis Solomos, Stavros Marinou, Eleni Haarig, Moritz Baars, Holger Ansmann, Albert Lapyonok, Tatyana Lopatin, Anton Dubovik, O. Gross, Silke Wirth, Martin Tsichla, Maria Tsikoudi, Ioanna Balis, Dimitris |
author_sort |
Gialitaki, Anna |
title |
Is the near-spherical shape the “new black” for smoke? |
title_short |
Is the near-spherical shape the “new black” for smoke? |
title_full |
Is the near-spherical shape the “new black” for smoke? |
title_fullStr |
Is the near-spherical shape the “new black” for smoke? |
title_full_unstemmed |
Is the near-spherical shape the “new black” for smoke? |
title_sort |
is the near-spherical shape the “new black” for smoke? |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-03320486 https://hal.science/hal-03320486/document https://hal.science/hal-03320486/file/acp-20-14005-2020.pdf https://doi.org/10.5194/acp-20-14005-2020 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.science/hal-03320486 Atmospheric Chemistry and Physics, 2020, 20 (22), pp.14005-14021. ⟨10.5194/acp-20-14005-2020⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-20-14005-2020 hal-03320486 https://hal.science/hal-03320486 https://hal.science/hal-03320486/document https://hal.science/hal-03320486/file/acp-20-14005-2020.pdf doi:10.5194/acp-20-14005-2020 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/acp-20-14005-2020 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
20 |
container_issue |
22 |
container_start_page |
14005 |
op_container_end_page |
14021 |
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1802643711753977856 |