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: | https://hdl.handle.net/20.500.12079/73067 https://doi.org/10.3390/rs14020313 https://www.mdpi.com/2072-4292/14/2/313 |
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ftenea:oai:iris.enea.it:20.500.12079/73067 2024-09-15T18:02:14+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. 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. 2022 https://hdl.handle.net/20.500.12079/73067 https://doi.org/10.3390/rs14020313 https://www.mdpi.com/2072-4292/14/2/313 eng eng volume:14 issue:2 numberofpages:18 journal:REMOTE SENSING https://hdl.handle.net/20.500.12079/73067 doi:10.3390/rs14020313 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85122812523 https://www.mdpi.com/2072-4292/14/2/313 info:eu-repo/semantics/openAccess Arctic Biomass-burning (BB) Wildfires Aerosol heating rate Aerosol radiative effect info:eu-repo/semantics/article 2022 ftenea https://doi.org/20.500.12079/7306710.3390/rs14020313 2024-07-29T23:40:04Z 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 Climate change Greenland Thule ENEA-IRIS Open Archive (Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile) Remote Sensing 14 2 313 |
institution |
Open Polar |
collection |
ENEA-IRIS Open Archive (Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile) |
op_collection_id |
ftenea |
language |
English |
topic |
Arctic Biomass-burning (BB) Wildfires Aerosol heating rate Aerosol radiative effect |
spellingShingle |
Arctic Biomass-burning (BB) Wildfires Aerosol heating rate Aerosol radiative effect 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. On the Radiative Impact of Biomass-Burning Aerosols in the Arctic: The August 2017 Case Study |
topic_facet |
Arctic Biomass-burning (BB) Wildfires Aerosol heating rate Aerosol radiative effect |
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. |
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. |
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. |
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 |
publishDate |
2022 |
url |
https://hdl.handle.net/20.500.12079/73067 https://doi.org/10.3390/rs14020313 https://www.mdpi.com/2072-4292/14/2/313 |
genre |
Climate change Greenland Thule |
genre_facet |
Climate change Greenland Thule |
op_relation |
volume:14 issue:2 numberofpages:18 journal:REMOTE SENSING https://hdl.handle.net/20.500.12079/73067 doi:10.3390/rs14020313 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85122812523 https://www.mdpi.com/2072-4292/14/2/313 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/20.500.12079/7306710.3390/rs14020313 |
container_title |
Remote Sensing |
container_volume |
14 |
container_issue |
2 |
container_start_page |
313 |
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1810439701172060160 |