Quantifying black carbon deposition over the Greenland ice sheet from forest fires in Canada
International audience Black carbon (BC) concentrations observed in 22 snowpits sampled in the northwest sector of the Greenland ice sheet in April 2014 have allowed us to identify a strong and widespread BC aerosol deposition event, which was dated to have accumulated in the pits from two snow stor...
Published in: | Geophysical Research Letters |
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Main Authors: | , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2017
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Subjects: | |
Online Access: | https://insu.hal.science/insu-01631372 https://insu.hal.science/insu-01631372/document https://insu.hal.science/insu-01631372/file/2017GL073701.pdf https://doi.org/10.1002/2017GL073701 |
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ftinsu:oai:HAL:insu-01631372v1 |
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openpolar |
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Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
black carbon deposition fires [SDE]Environmental Sciences [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
black carbon deposition fires [SDE]Environmental Sciences [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Thomas, Jennie L. Polashenski, Chris M. Soja, Amber J. Marelle, Louis Casey, Kimberley A. Choi, Hyun Deok Raut, Jean-Christophe Wiedinmyer, Christine Emmons, L. K. Fast, Jerome Pelon, Jacques Law, Kathy S. Flanner, Mark G. Dibb, Jack E. Quantifying black carbon deposition over the Greenland ice sheet from forest fires in Canada |
topic_facet |
black carbon deposition fires [SDE]Environmental Sciences [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Black carbon (BC) concentrations observed in 22 snowpits sampled in the northwest sector of the Greenland ice sheet in April 2014 have allowed us to identify a strong and widespread BC aerosol deposition event, which was dated to have accumulated in the pits from two snow storms between 27 July and 2 August 2013. This event comprises a significant portion (57% on average across all pits) of total BC deposition over 10 months (July 2013 to April 2014). Here we link this deposition event to forest fires burning in Canada during summer 2013 using modeling and remote sensing tools. Aerosols were detected by both the Cloud-Aerosol Lidar with Orthogonal Polarization (on board CALIPSO) and Moderate Resolution Imaging Spectroradiometer (Aqua) instruments during transport between Canada and Greenland. We use high-resolution regional chemical transport modeling (WRF-Chem) combined with high-resolution fire emissions (FINNv1.5) to study aerosol emissions, transport, and deposition during this event. The model captures the timing of the BC deposition event and shows that fires in Canada were the main source of deposited BC. However, the model underpredicts BC deposition compared to measurements at all sites by a factor of 2–100. Underprediction of modeled BC deposition originates from uncertainties in fire emissions and model treatment of wet removal of aerosols. Improvements in model descriptions of precipitation scavenging and emissions from wildfires are needed to correctly predict deposition, which is critical for determining the climate impacts of aerosols that originate from fires. |
author2 |
ERDC Cold Regions Research and Engineering Laboratory (CRREL) USACE Engineer Research and Development Center (ERDC) Thayer School of Engineering Dartmouth College Hanover National Institute of Aerospace Hampton (NIA) Center for International Climate and Environmental Research Oslo (CICERO) University of Oslo (UiO) TROPO - 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) National Center for Atmospheric Research Boulder (NCAR) Pacific Northwest National Laboratory (PNNL) Department of Climate and Space Sciences and Engineering (CLaSP) University of Michigan Ann Arbor University of Michigan System-University of Michigan System Institute for the Study of Earth, Oceans, and Space Durham (EOS) University of New Hampshire (UNH) |
format |
Article in Journal/Newspaper |
author |
Thomas, Jennie L. Polashenski, Chris M. Soja, Amber J. Marelle, Louis Casey, Kimberley A. Choi, Hyun Deok Raut, Jean-Christophe Wiedinmyer, Christine Emmons, L. K. Fast, Jerome Pelon, Jacques Law, Kathy S. Flanner, Mark G. Dibb, Jack E. |
author_facet |
Thomas, Jennie L. Polashenski, Chris M. Soja, Amber J. Marelle, Louis Casey, Kimberley A. Choi, Hyun Deok Raut, Jean-Christophe Wiedinmyer, Christine Emmons, L. K. Fast, Jerome Pelon, Jacques Law, Kathy S. Flanner, Mark G. Dibb, Jack E. |
author_sort |
Thomas, Jennie L. |
title |
Quantifying black carbon deposition over the Greenland ice sheet from forest fires in Canada |
title_short |
Quantifying black carbon deposition over the Greenland ice sheet from forest fires in Canada |
title_full |
Quantifying black carbon deposition over the Greenland ice sheet from forest fires in Canada |
title_fullStr |
Quantifying black carbon deposition over the Greenland ice sheet from forest fires in Canada |
title_full_unstemmed |
Quantifying black carbon deposition over the Greenland ice sheet from forest fires in Canada |
title_sort |
quantifying black carbon deposition over the greenland ice sheet from forest fires in canada |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://insu.hal.science/insu-01631372 https://insu.hal.science/insu-01631372/document https://insu.hal.science/insu-01631372/file/2017GL073701.pdf https://doi.org/10.1002/2017GL073701 |
geographic |
Canada Greenland |
geographic_facet |
Canada Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://insu.hal.science/insu-01631372 Geophysical Research Letters, 2017, 44 (15), pp.7965 - 7974. ⟨10.1002/2017GL073701⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/2017GL073701 insu-01631372 https://insu.hal.science/insu-01631372 https://insu.hal.science/insu-01631372/document https://insu.hal.science/insu-01631372/file/2017GL073701.pdf doi:10.1002/2017GL073701 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1002/2017GL073701 |
container_title |
Geophysical Research Letters |
container_volume |
44 |
container_issue |
15 |
container_start_page |
7965 |
op_container_end_page |
7974 |
_version_ |
1782334589240344576 |
spelling |
ftinsu:oai:HAL:insu-01631372v1 2023-11-12T04:17:49+01:00 Quantifying black carbon deposition over the Greenland ice sheet from forest fires in Canada Thomas, Jennie L. Polashenski, Chris M. Soja, Amber J. Marelle, Louis Casey, Kimberley A. Choi, Hyun Deok Raut, Jean-Christophe Wiedinmyer, Christine Emmons, L. K. Fast, Jerome Pelon, Jacques Law, Kathy S. Flanner, Mark G. Dibb, Jack E. ERDC Cold Regions Research and Engineering Laboratory (CRREL) USACE Engineer Research and Development Center (ERDC) Thayer School of Engineering Dartmouth College Hanover National Institute of Aerospace Hampton (NIA) Center for International Climate and Environmental Research Oslo (CICERO) University of Oslo (UiO) TROPO - 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) National Center for Atmospheric Research Boulder (NCAR) Pacific Northwest National Laboratory (PNNL) Department of Climate and Space Sciences and Engineering (CLaSP) University of Michigan Ann Arbor University of Michigan System-University of Michigan System Institute for the Study of Earth, Oceans, and Space Durham (EOS) University of New Hampshire (UNH) 2017 https://insu.hal.science/insu-01631372 https://insu.hal.science/insu-01631372/document https://insu.hal.science/insu-01631372/file/2017GL073701.pdf https://doi.org/10.1002/2017GL073701 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1002/2017GL073701 insu-01631372 https://insu.hal.science/insu-01631372 https://insu.hal.science/insu-01631372/document https://insu.hal.science/insu-01631372/file/2017GL073701.pdf doi:10.1002/2017GL073701 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://insu.hal.science/insu-01631372 Geophysical Research Letters, 2017, 44 (15), pp.7965 - 7974. ⟨10.1002/2017GL073701⟩ black carbon deposition fires [SDE]Environmental Sciences [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2017 ftinsu https://doi.org/10.1002/2017GL073701 2023-10-25T16:30:25Z International audience Black carbon (BC) concentrations observed in 22 snowpits sampled in the northwest sector of the Greenland ice sheet in April 2014 have allowed us to identify a strong and widespread BC aerosol deposition event, which was dated to have accumulated in the pits from two snow storms between 27 July and 2 August 2013. This event comprises a significant portion (57% on average across all pits) of total BC deposition over 10 months (July 2013 to April 2014). Here we link this deposition event to forest fires burning in Canada during summer 2013 using modeling and remote sensing tools. Aerosols were detected by both the Cloud-Aerosol Lidar with Orthogonal Polarization (on board CALIPSO) and Moderate Resolution Imaging Spectroradiometer (Aqua) instruments during transport between Canada and Greenland. We use high-resolution regional chemical transport modeling (WRF-Chem) combined with high-resolution fire emissions (FINNv1.5) to study aerosol emissions, transport, and deposition during this event. The model captures the timing of the BC deposition event and shows that fires in Canada were the main source of deposited BC. However, the model underpredicts BC deposition compared to measurements at all sites by a factor of 2–100. Underprediction of modeled BC deposition originates from uncertainties in fire emissions and model treatment of wet removal of aerosols. Improvements in model descriptions of precipitation scavenging and emissions from wildfires are needed to correctly predict deposition, which is critical for determining the climate impacts of aerosols that originate from fires. Article in Journal/Newspaper Greenland Ice Sheet Institut national des sciences de l'Univers: HAL-INSU Canada Greenland Geophysical Research Letters 44 15 7965 7974 |