Overview paper: new insights into aerosol and climate in the Arctic
Motivated by the need to predict how the Arctic atmosphere will change in a warming world, this article summarizes recent advances made by the research consortium NETCARE (Network on Climate and Aerosols: Addressing Key Uncertainties in Remote Canadian Environments) that contribute to our fundamenta...
Published in: | Atmospheric Chemistry and Physics |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
European Geosciences Union
2019
|
Subjects: | |
Online Access: | https://doi.org/10.5194/acp-19-2527-2019 https://nrc-publications.canada.ca/eng/view/ft/?id=59922c20-b73a-49a2-aa02-b3aca7687653 https://nrc-publications.canada.ca/eng/view/object/?id=59922c20-b73a-49a2-aa02-b3aca7687653 https://nrc-publications.canada.ca/fra/voir/objet/?id=59922c20-b73a-49a2-aa02-b3aca7687653 |
id |
ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:59922c20-b73a-49a2-aa02-b3aca7687653 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
National Research Council Canada: NRC Publications Archive |
op_collection_id |
ftnrccanada |
language |
English |
description |
Motivated by the need to predict how the Arctic atmosphere will change in a warming world, this article summarizes recent advances made by the research consortium NETCARE (Network on Climate and Aerosols: Addressing Key Uncertainties in Remote Canadian Environments) that contribute to our fundamental understanding of Arctic aerosol particles as they relate to climate forcing. The overall goal of NETCARE research has been to use an interdisciplinary approach encompassing extensive field observations and a range of chemical transport, earth system, and biogeochemical models. Several major findings and advances have emerged from NETCARE since its formation in 2013. (1) Unexpectedly high summertime dimethyl sulfide (DMS) levels were identified in ocean water (up to 75 nM) and the overlying atmosphere (up to 1 ppbv) in the Canadian Arctic Archipelago (CAA). Furthermore, melt ponds, which are widely prevalent, were identified as an important DMS source (with DMS concentrations of up to 6 nM and a potential contribution to atmospheric DMS of 20 % in the study area). (2) Evidence of widespread particle nucleation and growth in the marine boundary layer was found in the CAA in the summertime, with these events observed on 41 % of days in a 2016 cruise. As well, at Alert, Nunavut, particles that are newly formed and grown under conditions of minimal anthropogenic influence during the months of July and August are estimated to contribute 20 % to 80 % of the 30–50 nm particle number density. DMS-oxidation-driven nucleation is facilitated by the presence of atmospheric ammonia arising from seabird-colony emissions, and potentially also from coastal regions, tundra, and biomass burning. Via accumulation of secondary organic aerosol (SOA), a significant fraction of the new particles grow to sizes that are active in cloud droplet formation. Although the gaseous precursors to Arctic marine SOA remain poorly defined, the measured levels of common continental SOA precursors (isoprene and monoterpenes) were low, whereas elevated mixing ratios of oxygenated volatile organic compounds (OVOCs) were inferred to arise via processes involving the sea surface microlayer. (3) The variability in the vertical distribution of black carbon (BC) under both springtime Arctic haze and more pristine summertime aerosol conditions was observed. Measured particle size distributions and mixing states were used to constrain, for the first time, calculations of aerosol–climate interactions under Arctic conditions. Aircraft- and ground-based measurements were used to better establish the BC source regions that supply the Arctic via long-range transport mechanisms, with evidence for a dominant springtime contribution from eastern and southern Asia to the middle troposphere, and a major contribution from northern Asia to the surface. (4) Measurements of ice nucleating particles (INPs) in the Arctic indicate that a major source of these particles is mineral dust, likely derived from local sources in the summer and long-range transport in the spring. In addition, INPs are abundant in the sea surface microlayer in the Arctic, and possibly play a role in ice nucleation in the atmosphere when mineral dust concentrations are low. (5) Amongst multiple aerosol components, BC was observed to have the smallest effective deposition velocities to high Arctic snow (0.03 cm s−1). Peer reviewed: Yes NRC publication: Yes |
format |
Article in Journal/Newspaper |
author |
Abbatt, Jonathan P. D. Leaitch, W. Richard Aliabadi, Amir A. Bertram, Allan K. Blanchet, Jean-Pierre Boivin-Rioux, Aude Bozem, Heiko Burkart, Julia Chang, Rachel Y. W. Charette, Joannie Chaubey, Jai P. Christensen, Robert J. Cirisan, Ana Collins, Douglas B. Croft, Betty Dionne, Joelle Evans, Greg J. Fletcher, Christopher G. Galí, Martí Ghahremaninezhad, Roghayeh Girard, Eric Gong, Wanmin Gosselin, Michel Gourdal, Margaux Hanna, Sarah J. Hayashida, Hakase Herber, Andreas B. Hesaraki, Sareh Hoor, Peter Huang, Lin Hussherr, Rachel Irish, Victoria E. Keita, Setigui A. Kodros, John K. Köllner, Franziska Kolonjari, Felicia Kunkel, Daniel Ladino, Luis A. Law, Kathy Levasseur, Maurice Libois, Quentin Liggio, John Lizotte, Martine Macdonald, Katrina M. Mahmood, Rashed Martin, Randall V. Mason, Ryan H. Miller, Lisa A. Moravek, Alexander Mortenson, Eric Mungall, Emma L. Murphy, Jennifer G. Namazi, Maryam Norman, Ann-Lise O'Neill, Norman T. Pierce, Jeffrey R. Russell, Lynn M. Schneider, Johannes Schulz, Hannes Sharma, Sangeeta Si, Meng Staebler, Ralf M. Steiner, Nadja S. Thomas, Jennie L. Von Salzen, Knut Wentzell, Jeremy J. B. Willis, Megan D. Wentworth, Gregory R. Xu, Jun-Wei Yakobi-Hancock, Jacqueline D. |
spellingShingle |
Abbatt, Jonathan P. D. Leaitch, W. Richard Aliabadi, Amir A. Bertram, Allan K. Blanchet, Jean-Pierre Boivin-Rioux, Aude Bozem, Heiko Burkart, Julia Chang, Rachel Y. W. Charette, Joannie Chaubey, Jai P. Christensen, Robert J. Cirisan, Ana Collins, Douglas B. Croft, Betty Dionne, Joelle Evans, Greg J. Fletcher, Christopher G. Galí, Martí Ghahremaninezhad, Roghayeh Girard, Eric Gong, Wanmin Gosselin, Michel Gourdal, Margaux Hanna, Sarah J. Hayashida, Hakase Herber, Andreas B. Hesaraki, Sareh Hoor, Peter Huang, Lin Hussherr, Rachel Irish, Victoria E. Keita, Setigui A. Kodros, John K. Köllner, Franziska Kolonjari, Felicia Kunkel, Daniel Ladino, Luis A. Law, Kathy Levasseur, Maurice Libois, Quentin Liggio, John Lizotte, Martine Macdonald, Katrina M. Mahmood, Rashed Martin, Randall V. Mason, Ryan H. Miller, Lisa A. Moravek, Alexander Mortenson, Eric Mungall, Emma L. Murphy, Jennifer G. Namazi, Maryam Norman, Ann-Lise O'Neill, Norman T. Pierce, Jeffrey R. Russell, Lynn M. Schneider, Johannes Schulz, Hannes Sharma, Sangeeta Si, Meng Staebler, Ralf M. Steiner, Nadja S. Thomas, Jennie L. Von Salzen, Knut Wentzell, Jeremy J. B. Willis, Megan D. Wentworth, Gregory R. Xu, Jun-Wei Yakobi-Hancock, Jacqueline D. Overview paper: new insights into aerosol and climate in the Arctic |
author_facet |
Abbatt, Jonathan P. D. Leaitch, W. Richard Aliabadi, Amir A. Bertram, Allan K. Blanchet, Jean-Pierre Boivin-Rioux, Aude Bozem, Heiko Burkart, Julia Chang, Rachel Y. W. Charette, Joannie Chaubey, Jai P. Christensen, Robert J. Cirisan, Ana Collins, Douglas B. Croft, Betty Dionne, Joelle Evans, Greg J. Fletcher, Christopher G. Galí, Martí Ghahremaninezhad, Roghayeh Girard, Eric Gong, Wanmin Gosselin, Michel Gourdal, Margaux Hanna, Sarah J. Hayashida, Hakase Herber, Andreas B. Hesaraki, Sareh Hoor, Peter Huang, Lin Hussherr, Rachel Irish, Victoria E. Keita, Setigui A. Kodros, John K. Köllner, Franziska Kolonjari, Felicia Kunkel, Daniel Ladino, Luis A. Law, Kathy Levasseur, Maurice Libois, Quentin Liggio, John Lizotte, Martine Macdonald, Katrina M. Mahmood, Rashed Martin, Randall V. Mason, Ryan H. Miller, Lisa A. Moravek, Alexander Mortenson, Eric Mungall, Emma L. Murphy, Jennifer G. Namazi, Maryam Norman, Ann-Lise O'Neill, Norman T. Pierce, Jeffrey R. Russell, Lynn M. Schneider, Johannes Schulz, Hannes Sharma, Sangeeta Si, Meng Staebler, Ralf M. Steiner, Nadja S. Thomas, Jennie L. Von Salzen, Knut Wentzell, Jeremy J. B. Willis, Megan D. Wentworth, Gregory R. Xu, Jun-Wei Yakobi-Hancock, Jacqueline D. |
author_sort |
Abbatt, Jonathan P. D. |
title |
Overview paper: new insights into aerosol and climate in the Arctic |
title_short |
Overview paper: new insights into aerosol and climate in the Arctic |
title_full |
Overview paper: new insights into aerosol and climate in the Arctic |
title_fullStr |
Overview paper: new insights into aerosol and climate in the Arctic |
title_full_unstemmed |
Overview paper: new insights into aerosol and climate in the Arctic |
title_sort |
overview paper: new insights into aerosol and climate in the arctic |
publisher |
European Geosciences Union |
publishDate |
2019 |
url |
https://doi.org/10.5194/acp-19-2527-2019 https://nrc-publications.canada.ca/eng/view/ft/?id=59922c20-b73a-49a2-aa02-b3aca7687653 https://nrc-publications.canada.ca/eng/view/object/?id=59922c20-b73a-49a2-aa02-b3aca7687653 https://nrc-publications.canada.ca/fra/voir/objet/?id=59922c20-b73a-49a2-aa02-b3aca7687653 |
geographic |
Arctic Canadian Arctic Archipelago Nunavut |
geographic_facet |
Arctic Canadian Arctic Archipelago Nunavut |
genre |
Arctic Archipelago Arctic black carbon Canadian Arctic Archipelago Nunavut Tundra |
genre_facet |
Arctic Archipelago Arctic black carbon Canadian Arctic Archipelago Nunavut Tundra |
op_relation |
issn:1680-7324 Atmospheric Chemistry and Physics, Volume: 19, Issue: 4, Publication date: 2019-02-28, Pages: 2527–2560 doi:10.5194/acp-19-2527-2019 |
op_rights |
Creative Commons Attribution 4.0 International (CC BY 4.0) (https://creativecommons.org/licenses/by/4.0/) Creative Commons Attribution 4.0 International (CC BY 4.0) (https://creativecommons.org/licenses/by/4.0/deed.fr) |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/acp-19-2527-2019 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
19 |
container_issue |
4 |
container_start_page |
2527 |
op_container_end_page |
2560 |
_version_ |
1766303155567460352 |
spelling |
ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:59922c20-b73a-49a2-aa02-b3aca7687653 2023-05-15T14:29:03+02:00 Overview paper: new insights into aerosol and climate in the Arctic Abbatt, Jonathan P. D. Leaitch, W. Richard Aliabadi, Amir A. Bertram, Allan K. Blanchet, Jean-Pierre Boivin-Rioux, Aude Bozem, Heiko Burkart, Julia Chang, Rachel Y. W. Charette, Joannie Chaubey, Jai P. Christensen, Robert J. Cirisan, Ana Collins, Douglas B. Croft, Betty Dionne, Joelle Evans, Greg J. Fletcher, Christopher G. Galí, Martí Ghahremaninezhad, Roghayeh Girard, Eric Gong, Wanmin Gosselin, Michel Gourdal, Margaux Hanna, Sarah J. Hayashida, Hakase Herber, Andreas B. Hesaraki, Sareh Hoor, Peter Huang, Lin Hussherr, Rachel Irish, Victoria E. Keita, Setigui A. Kodros, John K. Köllner, Franziska Kolonjari, Felicia Kunkel, Daniel Ladino, Luis A. Law, Kathy Levasseur, Maurice Libois, Quentin Liggio, John Lizotte, Martine Macdonald, Katrina M. Mahmood, Rashed Martin, Randall V. Mason, Ryan H. Miller, Lisa A. Moravek, Alexander Mortenson, Eric Mungall, Emma L. Murphy, Jennifer G. Namazi, Maryam Norman, Ann-Lise O'Neill, Norman T. Pierce, Jeffrey R. Russell, Lynn M. Schneider, Johannes Schulz, Hannes Sharma, Sangeeta Si, Meng Staebler, Ralf M. Steiner, Nadja S. Thomas, Jennie L. Von Salzen, Knut Wentzell, Jeremy J. B. Willis, Megan D. Wentworth, Gregory R. Xu, Jun-Wei Yakobi-Hancock, Jacqueline D. 2019-02-28 text https://doi.org/10.5194/acp-19-2527-2019 https://nrc-publications.canada.ca/eng/view/ft/?id=59922c20-b73a-49a2-aa02-b3aca7687653 https://nrc-publications.canada.ca/eng/view/object/?id=59922c20-b73a-49a2-aa02-b3aca7687653 https://nrc-publications.canada.ca/fra/voir/objet/?id=59922c20-b73a-49a2-aa02-b3aca7687653 eng eng European Geosciences Union issn:1680-7324 Atmospheric Chemistry and Physics, Volume: 19, Issue: 4, Publication date: 2019-02-28, Pages: 2527–2560 doi:10.5194/acp-19-2527-2019 Creative Commons Attribution 4.0 International (CC BY 4.0) (https://creativecommons.org/licenses/by/4.0/) Creative Commons Attribution 4.0 International (CC BY 4.0) (https://creativecommons.org/licenses/by/4.0/deed.fr) CC-BY article 2019 ftnrccanada https://doi.org/10.5194/acp-19-2527-2019 2021-09-01T06:36:05Z Motivated by the need to predict how the Arctic atmosphere will change in a warming world, this article summarizes recent advances made by the research consortium NETCARE (Network on Climate and Aerosols: Addressing Key Uncertainties in Remote Canadian Environments) that contribute to our fundamental understanding of Arctic aerosol particles as they relate to climate forcing. The overall goal of NETCARE research has been to use an interdisciplinary approach encompassing extensive field observations and a range of chemical transport, earth system, and biogeochemical models. Several major findings and advances have emerged from NETCARE since its formation in 2013. (1) Unexpectedly high summertime dimethyl sulfide (DMS) levels were identified in ocean water (up to 75 nM) and the overlying atmosphere (up to 1 ppbv) in the Canadian Arctic Archipelago (CAA). Furthermore, melt ponds, which are widely prevalent, were identified as an important DMS source (with DMS concentrations of up to 6 nM and a potential contribution to atmospheric DMS of 20 % in the study area). (2) Evidence of widespread particle nucleation and growth in the marine boundary layer was found in the CAA in the summertime, with these events observed on 41 % of days in a 2016 cruise. As well, at Alert, Nunavut, particles that are newly formed and grown under conditions of minimal anthropogenic influence during the months of July and August are estimated to contribute 20 % to 80 % of the 30–50 nm particle number density. DMS-oxidation-driven nucleation is facilitated by the presence of atmospheric ammonia arising from seabird-colony emissions, and potentially also from coastal regions, tundra, and biomass burning. Via accumulation of secondary organic aerosol (SOA), a significant fraction of the new particles grow to sizes that are active in cloud droplet formation. Although the gaseous precursors to Arctic marine SOA remain poorly defined, the measured levels of common continental SOA precursors (isoprene and monoterpenes) were low, whereas elevated mixing ratios of oxygenated volatile organic compounds (OVOCs) were inferred to arise via processes involving the sea surface microlayer. (3) The variability in the vertical distribution of black carbon (BC) under both springtime Arctic haze and more pristine summertime aerosol conditions was observed. Measured particle size distributions and mixing states were used to constrain, for the first time, calculations of aerosol–climate interactions under Arctic conditions. Aircraft- and ground-based measurements were used to better establish the BC source regions that supply the Arctic via long-range transport mechanisms, with evidence for a dominant springtime contribution from eastern and southern Asia to the middle troposphere, and a major contribution from northern Asia to the surface. (4) Measurements of ice nucleating particles (INPs) in the Arctic indicate that a major source of these particles is mineral dust, likely derived from local sources in the summer and long-range transport in the spring. In addition, INPs are abundant in the sea surface microlayer in the Arctic, and possibly play a role in ice nucleation in the atmosphere when mineral dust concentrations are low. (5) Amongst multiple aerosol components, BC was observed to have the smallest effective deposition velocities to high Arctic snow (0.03 cm s−1). Peer reviewed: Yes NRC publication: Yes Article in Journal/Newspaper Arctic Archipelago Arctic black carbon Canadian Arctic Archipelago Nunavut Tundra National Research Council Canada: NRC Publications Archive Arctic Canadian Arctic Archipelago Nunavut Atmospheric Chemistry and Physics 19 4 2527 2560 |