On the Radiative Impact of Biomass-Burning Aerosols in the Arctic: The August 2017 Case Study
Boreal fires have increased during the last years and are projected to become more intense and frequent as a consequence of climate change. Wildfires produce a wide range of effects on the Arctic climate and ecosystem, and understanding these effects is crucial for predicting the future evolution of...
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Online Access: | http://hdl.handle.net/11573/1613657 https://doi.org/10.3390/rs14020313 |
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ftunivromairis:oai:iris.uniroma1.it:11573/1613657 2024-02-27T08:37:16+00:00 On the Radiative Impact of Biomass-Burning Aerosols in the Arctic: The August 2017 Case Study Cali Quaglia F. Meloni D. Muscari G. Di Iorio T. Ciardini V. Pace G. Becagli S. Di Bernardino A. Cacciani M. Hannigan J. W. Ortega I. Di Sarra A. G. Cali Quaglia, F. Meloni, D. Muscari, G. Di Iorio, T. Ciardini, V. Pace, G. Becagli, S. Di Bernardino, A. Cacciani, M. Hannigan, J. W. Ortega, I. Di Sarra, A. G. 2022 http://hdl.handle.net/11573/1613657 https://doi.org/10.3390/rs14020313 eng eng MDPI info:eu-repo/semantics/altIdentifier/wos/WOS:000820977000001 volume:14 issue:2 firstpage:313 journal:REMOTE SENSING http://hdl.handle.net/11573/1613657 doi:10.3390/rs14020313 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85122812523 info:eu-repo/semantics/openAccess Aerosol heating rate Aerosol radiative effect Arctic Biomass-burning (BB) Wildfires info:eu-repo/semantics/article 2022 ftunivromairis https://doi.org/10.3390/rs14020313 2024-01-31T18:10:24Z Boreal fires have increased during the last years and are projected to become more intense and frequent as a consequence of climate change. Wildfires produce a wide range of effects on the Arctic climate and ecosystem, and understanding these effects is crucial for predicting the future evolution of the Arctic region. This study focuses on the impact of the long-range transport of biomass-burning aerosol into the atmosphere and the corresponding radiative perturbation in the shortwave frequency range. As a case study, we investigate an intense biomass-burning (BB) event which took place in summer 2017 in Canada and subsequent northeastward transport of gases and particles in the plume leading to exceptionally high values (0.86) of Aerosol Optical Depth (AOD) at 500 nm measured in northwestern Greenland on 21 August 2017. This work characterizes the BB plume measured at the Thule High Arctic Atmospheric Observatory (THAAO; 76.53◦ N, 68.74◦ W) in August 2017 by assessing the associated shortwave aerosol direct radiative impact over the THAAO and extending this evaluation over the broader region (60◦ N–80◦ N, 110◦ W–0◦ E). The radiative transfer simulations with MODTRAN6.0 estimated an aerosol heating rate of up to 0.5 K/day in the upper aerosol layer (8–12 km). The direct aerosol radiative effect (ARE) vertical profile shows a maximum negative value of −45.4 Wm−2 for a 78◦ solar zenith angle above THAAO at 3 km altitude. A cumulative surface ARE of −127.5 TW is estimated to have occurred on 21 August 2017 over a portion (∼3.1 × 106 km2) of the considered domain (60◦ N–80◦ N, 110◦ W–0◦ E). ARE regional mean daily values over the same portion of the domain vary between −65 and −25 Wm−2. Although this is a limited temporal event, this effect can have significant influence on the Arctic radiative budget, especially in the anticipated scenario of increasing wildfires. Article in Journal/Newspaper Arctic Climate change Greenland Thule Sapienza Università di Roma: CINECA IRIS Arctic Canada Greenland Remote Sensing 14 2 313 |
institution |
Open Polar |
collection |
Sapienza Università di Roma: CINECA IRIS |
op_collection_id |
ftunivromairis |
language |
English |
topic |
Aerosol heating rate Aerosol radiative effect Arctic Biomass-burning (BB) Wildfires |
spellingShingle |
Aerosol heating rate Aerosol radiative effect Arctic Biomass-burning (BB) Wildfires Cali Quaglia F. Meloni D. Muscari G. Di Iorio T. Ciardini V. Pace G. Becagli S. Di Bernardino A. Cacciani M. Hannigan J. W. Ortega I. Di Sarra A. G. On the Radiative Impact of Biomass-Burning Aerosols in the Arctic: The August 2017 Case Study |
topic_facet |
Aerosol heating rate Aerosol radiative effect Arctic Biomass-burning (BB) Wildfires |
description |
Boreal fires have increased during the last years and are projected to become more intense and frequent as a consequence of climate change. Wildfires produce a wide range of effects on the Arctic climate and ecosystem, and understanding these effects is crucial for predicting the future evolution of the Arctic region. This study focuses on the impact of the long-range transport of biomass-burning aerosol into the atmosphere and the corresponding radiative perturbation in the shortwave frequency range. As a case study, we investigate an intense biomass-burning (BB) event which took place in summer 2017 in Canada and subsequent northeastward transport of gases and particles in the plume leading to exceptionally high values (0.86) of Aerosol Optical Depth (AOD) at 500 nm measured in northwestern Greenland on 21 August 2017. This work characterizes the BB plume measured at the Thule High Arctic Atmospheric Observatory (THAAO; 76.53◦ N, 68.74◦ W) in August 2017 by assessing the associated shortwave aerosol direct radiative impact over the THAAO and extending this evaluation over the broader region (60◦ N–80◦ N, 110◦ W–0◦ E). The radiative transfer simulations with MODTRAN6.0 estimated an aerosol heating rate of up to 0.5 K/day in the upper aerosol layer (8–12 km). The direct aerosol radiative effect (ARE) vertical profile shows a maximum negative value of −45.4 Wm−2 for a 78◦ solar zenith angle above THAAO at 3 km altitude. A cumulative surface ARE of −127.5 TW is estimated to have occurred on 21 August 2017 over a portion (∼3.1 × 106 km2) of the considered domain (60◦ N–80◦ N, 110◦ W–0◦ E). ARE regional mean daily values over the same portion of the domain vary between −65 and −25 Wm−2. Although this is a limited temporal event, this effect can have significant influence on the Arctic radiative budget, especially in the anticipated scenario of increasing wildfires. |
author2 |
Cali Quaglia, F. Meloni, D. Muscari, G. Di Iorio, T. Ciardini, V. Pace, G. Becagli, S. Di Bernardino, A. Cacciani, M. Hannigan, J. W. Ortega, I. Di Sarra, A. G. |
format |
Article in Journal/Newspaper |
author |
Cali Quaglia F. Meloni D. Muscari G. Di Iorio T. Ciardini V. Pace G. Becagli S. Di Bernardino A. Cacciani M. Hannigan J. W. Ortega I. Di Sarra A. G. |
author_facet |
Cali Quaglia F. Meloni D. Muscari G. Di Iorio T. Ciardini V. Pace G. Becagli S. Di Bernardino A. Cacciani M. Hannigan J. W. Ortega I. Di Sarra A. G. |
author_sort |
Cali Quaglia F. |
title |
On the Radiative Impact of Biomass-Burning Aerosols in the Arctic: The August 2017 Case Study |
title_short |
On the Radiative Impact of Biomass-Burning Aerosols in the Arctic: The August 2017 Case Study |
title_full |
On the Radiative Impact of Biomass-Burning Aerosols in the Arctic: The August 2017 Case Study |
title_fullStr |
On the Radiative Impact of Biomass-Burning Aerosols in the Arctic: The August 2017 Case Study |
title_full_unstemmed |
On the Radiative Impact of Biomass-Burning Aerosols in the Arctic: The August 2017 Case Study |
title_sort |
on the radiative impact of biomass-burning aerosols in the arctic: the august 2017 case study |
publisher |
MDPI |
publishDate |
2022 |
url |
http://hdl.handle.net/11573/1613657 https://doi.org/10.3390/rs14020313 |
geographic |
Arctic Canada Greenland |
geographic_facet |
Arctic Canada Greenland |
genre |
Arctic Climate change Greenland Thule |
genre_facet |
Arctic Climate change Greenland Thule |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000820977000001 volume:14 issue:2 firstpage:313 journal:REMOTE SENSING http://hdl.handle.net/11573/1613657 doi:10.3390/rs14020313 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85122812523 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/rs14020313 |
container_title |
Remote Sensing |
container_volume |
14 |
container_issue |
2 |
container_start_page |
313 |
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1792044262162956288 |