Australian Black Summer smoke observed by lidar at the French Antarctic station Dumont d’Urville
International audience In the follow-up of the Australian ”Black Summer” event that persisted from August 2019 to March 2020, we present the optical properties of the stratospheric aerosols injected into the atmosphere by these wildfires. The outbreak of pyrocumulonimbus (PyroCb) activity triggered...
Published in: | Journal of Geophysical Research: Atmospheres |
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Format: | Article in Journal/Newspaper |
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Online Access: | https://insu.hal.science/insu-03548361 https://insu.hal.science/insu-03548361/document https://insu.hal.science/insu-03548361/file/JGR%20Atmospheres%20-%202022%20-%20Tenc%20-%20Australian%20Black%20Summer%20Smoke%20Observed%20by%20Lidar%20at%20the%20French%20Antarctic%20Station%20Dumont%20d.pdf https://doi.org/10.1029/2021JD035349 |
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ftinsu:oai:HAL:insu-03548361v1 2023-11-12T04:04:30+01:00 Australian Black Summer smoke observed by lidar at the French Antarctic station Dumont d’Urville Tencé, Florent Jumelet, Julien Bekki, Slimane Khaykin, Sergey Sarkissian, Alain Keckhut, Philippe STRATO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) 2022 https://insu.hal.science/insu-03548361 https://insu.hal.science/insu-03548361/document https://insu.hal.science/insu-03548361/file/JGR%20Atmospheres%20-%202022%20-%20Tenc%20-%20Australian%20Black%20Summer%20Smoke%20Observed%20by%20Lidar%20at%20the%20French%20Antarctic%20Station%20Dumont%20d.pdf https://doi.org/10.1029/2021JD035349 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2021JD035349 insu-03548361 https://insu.hal.science/insu-03548361 https://insu.hal.science/insu-03548361/document https://insu.hal.science/insu-03548361/file/JGR%20Atmospheres%20-%202022%20-%20Tenc%20-%20Australian%20Black%20Summer%20Smoke%20Observed%20by%20Lidar%20at%20the%20French%20Antarctic%20Station%20Dumont%20d.pdf doi:10.1029/2021JD035349 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://insu.hal.science/insu-03548361 Journal of Geophysical Research: Atmospheres, 2022, 127 (4), pp.e2021JD035349. ⟨10.1029/2021JD035349⟩ [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/article Journal articles 2022 ftinsu https://doi.org/10.1029/2021JD035349 2023-11-01T17:24:16Z International audience In the follow-up of the Australian ”Black Summer” event that persisted from August 2019 to March 2020, we present the optical properties of the stratospheric aerosols injected into the atmosphere by these wildfires. The outbreak of pyrocumulonimbus (PyroCb) activity triggered between 2019/12/29 and 2020/01/04 have raised the stratospheric aerosol load of the Southern Hemisphere to unprecedented levels. Long-range transport brought some of the plumes down to the Antarctic region, where general circulation patterns kept them circling around the continent. The 532nm Rayleigh/Mie/Raman ground-based lidar of the French Antarctic station Dumont d’Urville (DDU, 66.6°S – 140°E) acquired unprecedented time series of these carbonaceous aerosols starting approximately 20 days after the injection and up to the most recent measurements in October 2019 where local radiosonde reported anomalous ozone depletion as compared to the decadal average. The lidar provides a first and unique time series at high vertical and temporal resolution, complemented by satellite measurements from OMI, OMPS and MLS. Aerosol backscatter ratio decreases from 1.9 to 1.2 between January and June 2020. Aerosol origin and persistence are characterized, as well as their optical properties and vertical distribution on several months. Article in Journal/Newspaper Antarc* Antarctic Institut national des sciences de l'Univers: HAL-INSU Antarctic Dumont d’Urville ENVELOPE(140.000,140.000,-66.667,-66.667) The Antarctic Journal of Geophysical Research: Atmospheres 127 4 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
spellingShingle |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] Tencé, Florent Jumelet, Julien Bekki, Slimane Khaykin, Sergey Sarkissian, Alain Keckhut, Philippe Australian Black Summer smoke observed by lidar at the French Antarctic station Dumont d’Urville |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience In the follow-up of the Australian ”Black Summer” event that persisted from August 2019 to March 2020, we present the optical properties of the stratospheric aerosols injected into the atmosphere by these wildfires. The outbreak of pyrocumulonimbus (PyroCb) activity triggered between 2019/12/29 and 2020/01/04 have raised the stratospheric aerosol load of the Southern Hemisphere to unprecedented levels. Long-range transport brought some of the plumes down to the Antarctic region, where general circulation patterns kept them circling around the continent. The 532nm Rayleigh/Mie/Raman ground-based lidar of the French Antarctic station Dumont d’Urville (DDU, 66.6°S – 140°E) acquired unprecedented time series of these carbonaceous aerosols starting approximately 20 days after the injection and up to the most recent measurements in October 2019 where local radiosonde reported anomalous ozone depletion as compared to the decadal average. The lidar provides a first and unique time series at high vertical and temporal resolution, complemented by satellite measurements from OMI, OMPS and MLS. Aerosol backscatter ratio decreases from 1.9 to 1.2 between January and June 2020. Aerosol origin and persistence are characterized, as well as their optical properties and vertical distribution on several months. |
author2 |
STRATO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Tencé, Florent Jumelet, Julien Bekki, Slimane Khaykin, Sergey Sarkissian, Alain Keckhut, Philippe |
author_facet |
Tencé, Florent Jumelet, Julien Bekki, Slimane Khaykin, Sergey Sarkissian, Alain Keckhut, Philippe |
author_sort |
Tencé, Florent |
title |
Australian Black Summer smoke observed by lidar at the French Antarctic station Dumont d’Urville |
title_short |
Australian Black Summer smoke observed by lidar at the French Antarctic station Dumont d’Urville |
title_full |
Australian Black Summer smoke observed by lidar at the French Antarctic station Dumont d’Urville |
title_fullStr |
Australian Black Summer smoke observed by lidar at the French Antarctic station Dumont d’Urville |
title_full_unstemmed |
Australian Black Summer smoke observed by lidar at the French Antarctic station Dumont d’Urville |
title_sort |
australian black summer smoke observed by lidar at the french antarctic station dumont d’urville |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://insu.hal.science/insu-03548361 https://insu.hal.science/insu-03548361/document https://insu.hal.science/insu-03548361/file/JGR%20Atmospheres%20-%202022%20-%20Tenc%20-%20Australian%20Black%20Summer%20Smoke%20Observed%20by%20Lidar%20at%20the%20French%20Antarctic%20Station%20Dumont%20d.pdf https://doi.org/10.1029/2021JD035349 |
long_lat |
ENVELOPE(140.000,140.000,-66.667,-66.667) |
geographic |
Antarctic Dumont d’Urville The Antarctic |
geographic_facet |
Antarctic Dumont d’Urville The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://insu.hal.science/insu-03548361 Journal of Geophysical Research: Atmospheres, 2022, 127 (4), pp.e2021JD035349. ⟨10.1029/2021JD035349⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2021JD035349 insu-03548361 https://insu.hal.science/insu-03548361 https://insu.hal.science/insu-03548361/document https://insu.hal.science/insu-03548361/file/JGR%20Atmospheres%20-%202022%20-%20Tenc%20-%20Australian%20Black%20Summer%20Smoke%20Observed%20by%20Lidar%20at%20the%20French%20Antarctic%20Station%20Dumont%20d.pdf doi:10.1029/2021JD035349 |
op_rights |
http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2021JD035349 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
127 |
container_issue |
4 |
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1782341653925724160 |