Factors controlling marine aerosol size distributions and their climate effects over the northwest Atlantic Ocean region
Aerosols over Earth's remote and spatially extensive ocean surfaces have important influences on planetary climate. However, these aerosols and their effects remain poorly understood, in part due to the remoteness and limited observations over these regions. In this study, we seek to understand...
Published in: | Atmospheric Chemistry and Physics |
---|---|
Main Authors: | , , , , , , , , , , , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2021
|
Subjects: | |
Online Access: | http://hdl.handle.net/2117/342087 https://doi.org/10.5194/acp-21-1889-2021 |
id |
ftupcatalunyair:oai:upcommons.upc.edu:2117/342087 |
---|---|
record_format |
openpolar |
spelling |
ftupcatalunyair:oai:upcommons.upc.edu:2117/342087 2024-09-15T18:24:29+00:00 Factors controlling marine aerosol size distributions and their climate effects over the northwest Atlantic Ocean region Croft, Betty Martin, Randall V. Moore, Richard H. Ziemba, Luke D. Crosbie, Ewan C. Liu, Hongyu Russell, Lynn M. Saliba, Georges Wisthaler, Armin Müller, Markus Schiller, Arne Gali Tapias, Martí Chang, Rachel Y.-W. McDuffie, Erin E. Bilsback, Kelsey R. Pierce, Jeffrey R. Barcelona Supercomputing Center 2021 28 p. application/pdf http://hdl.handle.net/2117/342087 https://doi.org/10.5194/acp-21-1889-2021 eng eng Copernicus Publications https://acp.copernicus.org/articles/21/1889/2021/ Croft, B. [et al.]. Factors controlling marine aerosol size distributions and their climate effects over the northwest Atlantic Ocean region. "Atmospheric Chemistry and Physics", 2021, vol. 21, núm. 3, p. 1889-1916. 1680-7316 http://hdl.handle.net/2117/342087 doi:10.5194/acp-21-1889-2021 Attribution 3.0 Spain Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/3.0/es/ https://creativecommons.org/licenses/by/4.0/ Open Access Àrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències de la terra i de la vida::Climatologia i meteorologia Atmospheric physics Sea surface microlayer Marine aerosol Climate GEOS-Chem model TwO-Moment Aerosol Sectional (TOMAS) Earth's climate system Aerosols -- Aspectes ambientals Article 2021 ftupcatalunyair https://doi.org/10.5194/acp-21-1889-2021 2024-07-25T10:56:38Z Aerosols over Earth's remote and spatially extensive ocean surfaces have important influences on planetary climate. However, these aerosols and their effects remain poorly understood, in part due to the remoteness and limited observations over these regions. In this study, we seek to understand factors that shape marine aerosol size distributions and composition in the northwest Atlantic Ocean region. We use the GEOS-Chem model with the TwO-Moment Aerosol Sectional (TOMAS) microphysics algorithm model to interpret measurements collected from ship and aircraft during the four seasonal campaigns of the North Atlantic Aerosols and Marine Ecosystems Study (NAAMES) conducted between 2015 and 2018. Observations from the NAAMES campaigns show enhancements in the campaign-median number of aerosols with diameters larger than 3 nm in the lower troposphere (below 6 km), most pronounced during the phytoplankton bloom maxima (May/June) below 2 km in the free troposphere. Our simulations, combined with NAAMES ship and aircraft measurements, suggest several key factors that contribute to aerosol number and size in the northwest Atlantic lower troposphere, with significant regional-mean (40–60∘ N and 20–50∘ W) cloud-albedo aerosol indirect effect (AIE) and direct radiative effect (DRE) processes during the phytoplankton bloom. These key factors and their associated simulated radiative effects in the region include the following: (1) particle formation near and above the marine boundary layer (MBL) top (AIE: −3.37 W m−2, DRE: −0.62 W m−2); (2) particle growth due to marine secondary organic aerosol (MSOA) as the nascent particles subside into the MBL, enabling them to become cloud-condensation-nuclei-sized particles (AIE: −2.27 W m−2, DRE: −0.10 W m−2); (3) particle formation and growth due to the products of dimethyl sulfide, above and within the MBL (−1.29 W m−2, DRE: −0.06 W m−2); (4) ship emissions (AIE: −0.62 W m−2, DRE: −0.05 W m−2); and (5) primary sea spray emissions (AIE: +0.04 W m−2, DRE: −0.79 W m−2). Our results ... Article in Journal/Newspaper North Atlantic Northwest Atlantic Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge Atmospheric Chemistry and Physics 21 3 1889 1916 |
institution |
Open Polar |
collection |
Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge |
op_collection_id |
ftupcatalunyair |
language |
English |
topic |
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències de la terra i de la vida::Climatologia i meteorologia Atmospheric physics Sea surface microlayer Marine aerosol Climate GEOS-Chem model TwO-Moment Aerosol Sectional (TOMAS) Earth's climate system Aerosols -- Aspectes ambientals |
spellingShingle |
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències de la terra i de la vida::Climatologia i meteorologia Atmospheric physics Sea surface microlayer Marine aerosol Climate GEOS-Chem model TwO-Moment Aerosol Sectional (TOMAS) Earth's climate system Aerosols -- Aspectes ambientals Croft, Betty Martin, Randall V. Moore, Richard H. Ziemba, Luke D. Crosbie, Ewan C. Liu, Hongyu Russell, Lynn M. Saliba, Georges Wisthaler, Armin Müller, Markus Schiller, Arne Gali Tapias, Martí Chang, Rachel Y.-W. McDuffie, Erin E. Bilsback, Kelsey R. Pierce, Jeffrey R. Factors controlling marine aerosol size distributions and their climate effects over the northwest Atlantic Ocean region |
topic_facet |
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències de la terra i de la vida::Climatologia i meteorologia Atmospheric physics Sea surface microlayer Marine aerosol Climate GEOS-Chem model TwO-Moment Aerosol Sectional (TOMAS) Earth's climate system Aerosols -- Aspectes ambientals |
description |
Aerosols over Earth's remote and spatially extensive ocean surfaces have important influences on planetary climate. However, these aerosols and their effects remain poorly understood, in part due to the remoteness and limited observations over these regions. In this study, we seek to understand factors that shape marine aerosol size distributions and composition in the northwest Atlantic Ocean region. We use the GEOS-Chem model with the TwO-Moment Aerosol Sectional (TOMAS) microphysics algorithm model to interpret measurements collected from ship and aircraft during the four seasonal campaigns of the North Atlantic Aerosols and Marine Ecosystems Study (NAAMES) conducted between 2015 and 2018. Observations from the NAAMES campaigns show enhancements in the campaign-median number of aerosols with diameters larger than 3 nm in the lower troposphere (below 6 km), most pronounced during the phytoplankton bloom maxima (May/June) below 2 km in the free troposphere. Our simulations, combined with NAAMES ship and aircraft measurements, suggest several key factors that contribute to aerosol number and size in the northwest Atlantic lower troposphere, with significant regional-mean (40–60∘ N and 20–50∘ W) cloud-albedo aerosol indirect effect (AIE) and direct radiative effect (DRE) processes during the phytoplankton bloom. These key factors and their associated simulated radiative effects in the region include the following: (1) particle formation near and above the marine boundary layer (MBL) top (AIE: −3.37 W m−2, DRE: −0.62 W m−2); (2) particle growth due to marine secondary organic aerosol (MSOA) as the nascent particles subside into the MBL, enabling them to become cloud-condensation-nuclei-sized particles (AIE: −2.27 W m−2, DRE: −0.10 W m−2); (3) particle formation and growth due to the products of dimethyl sulfide, above and within the MBL (−1.29 W m−2, DRE: −0.06 W m−2); (4) ship emissions (AIE: −0.62 W m−2, DRE: −0.05 W m−2); and (5) primary sea spray emissions (AIE: +0.04 W m−2, DRE: −0.79 W m−2). Our results ... |
author2 |
Barcelona Supercomputing Center |
format |
Article in Journal/Newspaper |
author |
Croft, Betty Martin, Randall V. Moore, Richard H. Ziemba, Luke D. Crosbie, Ewan C. Liu, Hongyu Russell, Lynn M. Saliba, Georges Wisthaler, Armin Müller, Markus Schiller, Arne Gali Tapias, Martí Chang, Rachel Y.-W. McDuffie, Erin E. Bilsback, Kelsey R. Pierce, Jeffrey R. |
author_facet |
Croft, Betty Martin, Randall V. Moore, Richard H. Ziemba, Luke D. Crosbie, Ewan C. Liu, Hongyu Russell, Lynn M. Saliba, Georges Wisthaler, Armin Müller, Markus Schiller, Arne Gali Tapias, Martí Chang, Rachel Y.-W. McDuffie, Erin E. Bilsback, Kelsey R. Pierce, Jeffrey R. |
author_sort |
Croft, Betty |
title |
Factors controlling marine aerosol size distributions and their climate effects over the northwest Atlantic Ocean region |
title_short |
Factors controlling marine aerosol size distributions and their climate effects over the northwest Atlantic Ocean region |
title_full |
Factors controlling marine aerosol size distributions and their climate effects over the northwest Atlantic Ocean region |
title_fullStr |
Factors controlling marine aerosol size distributions and their climate effects over the northwest Atlantic Ocean region |
title_full_unstemmed |
Factors controlling marine aerosol size distributions and their climate effects over the northwest Atlantic Ocean region |
title_sort |
factors controlling marine aerosol size distributions and their climate effects over the northwest atlantic ocean region |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
http://hdl.handle.net/2117/342087 https://doi.org/10.5194/acp-21-1889-2021 |
genre |
North Atlantic Northwest Atlantic |
genre_facet |
North Atlantic Northwest Atlantic |
op_relation |
https://acp.copernicus.org/articles/21/1889/2021/ Croft, B. [et al.]. Factors controlling marine aerosol size distributions and their climate effects over the northwest Atlantic Ocean region. "Atmospheric Chemistry and Physics", 2021, vol. 21, núm. 3, p. 1889-1916. 1680-7316 http://hdl.handle.net/2117/342087 doi:10.5194/acp-21-1889-2021 |
op_rights |
Attribution 3.0 Spain Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/3.0/es/ https://creativecommons.org/licenses/by/4.0/ Open Access |
op_doi |
https://doi.org/10.5194/acp-21-1889-2021 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
21 |
container_issue |
3 |
container_start_page |
1889 |
op_container_end_page |
1916 |
_version_ |
1810464841186410496 |