Overview and preliminary results of the Surface Ocean Aerosol Production (SOAP) campaign
Establishing the relationship between marine boundary layer (MBL) aerosols and surface water biogeochemistry is required to understand aerosol and cloud production processes over the remote ocean and represent them more accurately in earth system models and global climate projections. This was addre...
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ftdoajarticles:oai:doaj.org/article:1f3cfcda1f444ad5a1448f747b9cda5a 2023-05-15T18:25:48+02:00 Overview and preliminary results of the Surface Ocean Aerosol Production (SOAP) campaign C. S. Law M. J. Smith M. J. Harvey T. G. Bell L. T. Cravigan F. C. Elliott S. J. Lawson M. Lizotte A. Marriner J. McGregor Z. Ristovski K. A. Safi E. S. Saltzman P. Vaattovaara C. F. Walker 2017-11-01T00:00:00Z https://doi.org/10.5194/acp-17-13645-2017 https://doaj.org/article/1f3cfcda1f444ad5a1448f747b9cda5a EN eng Copernicus Publications https://www.atmos-chem-phys.net/17/13645/2017/acp-17-13645-2017.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-17-13645-2017 1680-7316 1680-7324 https://doaj.org/article/1f3cfcda1f444ad5a1448f747b9cda5a Atmospheric Chemistry and Physics, Vol 17, Pp 13645-13667 (2017) Physics QC1-999 Chemistry QD1-999 article 2017 ftdoajarticles https://doi.org/10.5194/acp-17-13645-2017 2022-12-31T00:20:56Z Establishing the relationship between marine boundary layer (MBL) aerosols and surface water biogeochemistry is required to understand aerosol and cloud production processes over the remote ocean and represent them more accurately in earth system models and global climate projections. This was addressed by the SOAP (Surface Ocean Aerosol Production) campaign, which examined air–sea interaction over biologically productive frontal waters east of New Zealand. This overview details the objectives, regional context, sampling strategy and provisional findings of a pilot study, PreSOAP, in austral summer 2011 and the following SOAP voyage in late austral summer 2012. Both voyages characterized surface water and MBL composition in three phytoplankton blooms of differing species composition and biogeochemistry, with significant regional correlation observed between chlorophyll a and DMSsw. Surface seawater dimethylsulfide (DMSsw) and associated air–sea DMS flux showed spatial variation during the SOAP voyage, with maxima of 25 nmol L −1 and 100 µmol m −2 d −1 , respectively, recorded in a dinoflagellate bloom. Inclusion of SOAP data in a regional DMSsw compilation indicates that the current climatological mean is an underestimate for this region of the southwest Pacific. Estimation of the DMS gas transfer velocity ( k DMS ) by independent techniques of eddy covariance and gradient flux showed good agreement, although both exhibited periodic deviations from model estimates. Flux anomalies were related to surface warming and sea surface microlayer enrichment and also reflected the heterogeneous distribution of DMSsw and the associated flux footprint. Other aerosol precursors measured included the halides and various volatile organic carbon compounds, with first measurements of the short-lived gases glyoxal and methylglyoxal in pristine Southern Ocean marine air indicating an unidentified local source. The application of a real-time clean sector, contaminant markers and a common aerosol inlet facilitated multi-sensor ... Article in Journal/Newspaper Southern Ocean Directory of Open Access Journals: DOAJ Articles Southern Ocean Austral Pacific New Zealand Atmospheric Chemistry and Physics 17 22 13645 13667 |
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Directory of Open Access Journals: DOAJ Articles |
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language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 C. S. Law M. J. Smith M. J. Harvey T. G. Bell L. T. Cravigan F. C. Elliott S. J. Lawson M. Lizotte A. Marriner J. McGregor Z. Ristovski K. A. Safi E. S. Saltzman P. Vaattovaara C. F. Walker Overview and preliminary results of the Surface Ocean Aerosol Production (SOAP) campaign |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
Establishing the relationship between marine boundary layer (MBL) aerosols and surface water biogeochemistry is required to understand aerosol and cloud production processes over the remote ocean and represent them more accurately in earth system models and global climate projections. This was addressed by the SOAP (Surface Ocean Aerosol Production) campaign, which examined air–sea interaction over biologically productive frontal waters east of New Zealand. This overview details the objectives, regional context, sampling strategy and provisional findings of a pilot study, PreSOAP, in austral summer 2011 and the following SOAP voyage in late austral summer 2012. Both voyages characterized surface water and MBL composition in three phytoplankton blooms of differing species composition and biogeochemistry, with significant regional correlation observed between chlorophyll a and DMSsw. Surface seawater dimethylsulfide (DMSsw) and associated air–sea DMS flux showed spatial variation during the SOAP voyage, with maxima of 25 nmol L −1 and 100 µmol m −2 d −1 , respectively, recorded in a dinoflagellate bloom. Inclusion of SOAP data in a regional DMSsw compilation indicates that the current climatological mean is an underestimate for this region of the southwest Pacific. Estimation of the DMS gas transfer velocity ( k DMS ) by independent techniques of eddy covariance and gradient flux showed good agreement, although both exhibited periodic deviations from model estimates. Flux anomalies were related to surface warming and sea surface microlayer enrichment and also reflected the heterogeneous distribution of DMSsw and the associated flux footprint. Other aerosol precursors measured included the halides and various volatile organic carbon compounds, with first measurements of the short-lived gases glyoxal and methylglyoxal in pristine Southern Ocean marine air indicating an unidentified local source. The application of a real-time clean sector, contaminant markers and a common aerosol inlet facilitated multi-sensor ... |
format |
Article in Journal/Newspaper |
author |
C. S. Law M. J. Smith M. J. Harvey T. G. Bell L. T. Cravigan F. C. Elliott S. J. Lawson M. Lizotte A. Marriner J. McGregor Z. Ristovski K. A. Safi E. S. Saltzman P. Vaattovaara C. F. Walker |
author_facet |
C. S. Law M. J. Smith M. J. Harvey T. G. Bell L. T. Cravigan F. C. Elliott S. J. Lawson M. Lizotte A. Marriner J. McGregor Z. Ristovski K. A. Safi E. S. Saltzman P. Vaattovaara C. F. Walker |
author_sort |
C. S. Law |
title |
Overview and preliminary results of the Surface Ocean Aerosol Production (SOAP) campaign |
title_short |
Overview and preliminary results of the Surface Ocean Aerosol Production (SOAP) campaign |
title_full |
Overview and preliminary results of the Surface Ocean Aerosol Production (SOAP) campaign |
title_fullStr |
Overview and preliminary results of the Surface Ocean Aerosol Production (SOAP) campaign |
title_full_unstemmed |
Overview and preliminary results of the Surface Ocean Aerosol Production (SOAP) campaign |
title_sort |
overview and preliminary results of the surface ocean aerosol production (soap) campaign |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/acp-17-13645-2017 https://doaj.org/article/1f3cfcda1f444ad5a1448f747b9cda5a |
geographic |
Southern Ocean Austral Pacific New Zealand |
geographic_facet |
Southern Ocean Austral Pacific New Zealand |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Atmospheric Chemistry and Physics, Vol 17, Pp 13645-13667 (2017) |
op_relation |
https://www.atmos-chem-phys.net/17/13645/2017/acp-17-13645-2017.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-17-13645-2017 1680-7316 1680-7324 https://doaj.org/article/1f3cfcda1f444ad5a1448f747b9cda5a |
op_doi |
https://doi.org/10.5194/acp-17-13645-2017 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
17 |
container_issue |
22 |
container_start_page |
13645 |
op_container_end_page |
13667 |
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1766207481355173888 |