Estimation of bubble-mediated air–sea gas exchange from concurrent DMS and CO2 transfer velocities at intermediate–high wind speeds
Simultaneous air–sea fluxes and concentration differences of dimethylsulfide (DMS) and carbon dioxide (CO2) were measured during a summertime North Atlantic cruise in 2011. This data set reveals significant differences between the gas transfer velocities of these two gases (Δkw) over a range of wind...
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ftimperialcol:oai:spiral.imperial.ac.uk:10044/1/68663 2023-05-15T17:33:54+02:00 Estimation of bubble-mediated air–sea gas exchange from concurrent DMS and CO2 transfer velocities at intermediate–high wind speeds Bell, TG Landwehr, S Miller, SD De Bruyn, WJ Callaghan, AH Scanlon, B Ward, B Yang, M Saltzman, ES National Science Foundation Prof. Eric Shooter via the Royal Society 2017-06-28 http://hdl.handle.net/10044/1/68663 https://doi.org/10.5194/acp-17-9019-2017 Copernicus Publications Atmospheric Chemistry and Physics © 2017 Author(s). This work is distributed under the Creative Commons Attribution 3.0 License (https://creativecommons.org/licenses/by/3.0/). CC-BY 9033 9019 0401 Atmospheric Sciences 0201 Astronomical And Space Sciences Meteorology & Atmospheric Sciences Journal Article 2017 ftimperialcol https://doi.org/10.5194/acp-17-9019-2017 2019-04-11T22:40:52Z Simultaneous air–sea fluxes and concentration differences of dimethylsulfide (DMS) and carbon dioxide (CO2) were measured during a summertime North Atlantic cruise in 2011. This data set reveals significant differences between the gas transfer velocities of these two gases (Δkw) over a range of wind speeds up to 21ms−1. These differences occur at and above the approximate wind speed threshold when waves begin breaking. Whitecap fraction (a proxy for bubbles) was also measured and has a positive relationship with Δkw, consistent with enhanced bubble-mediated transfer of the less soluble CO2 relative to that of the more soluble DMS. However, the correlation of Δkw with whitecap fraction is no stronger than with wind speed. Models used to estimate bubble-mediated transfer from in situ whitecap fraction underpredict the observations, particularly at intermediate wind speeds. Examining the differences between gas transfer velocities of gases with different solubilities is a useful way to detect the impact of bubble-mediated exchange. More simultaneous gas transfer measurements of different solubility gases across a wide range of oceanic conditions are needed to understand the factors controlling the magnitude and scaling of bubble-mediated gas exchange. Article in Journal/Newspaper North Atlantic Imperial College London: Spiral Atmospheric Chemistry and Physics 17 14 9019 9033 |
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Open Polar |
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Imperial College London: Spiral |
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ftimperialcol |
topic |
0401 Atmospheric Sciences 0201 Astronomical And Space Sciences Meteorology & Atmospheric Sciences |
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0401 Atmospheric Sciences 0201 Astronomical And Space Sciences Meteorology & Atmospheric Sciences Bell, TG Landwehr, S Miller, SD De Bruyn, WJ Callaghan, AH Scanlon, B Ward, B Yang, M Saltzman, ES Estimation of bubble-mediated air–sea gas exchange from concurrent DMS and CO2 transfer velocities at intermediate–high wind speeds |
topic_facet |
0401 Atmospheric Sciences 0201 Astronomical And Space Sciences Meteorology & Atmospheric Sciences |
description |
Simultaneous air–sea fluxes and concentration differences of dimethylsulfide (DMS) and carbon dioxide (CO2) were measured during a summertime North Atlantic cruise in 2011. This data set reveals significant differences between the gas transfer velocities of these two gases (Δkw) over a range of wind speeds up to 21ms−1. These differences occur at and above the approximate wind speed threshold when waves begin breaking. Whitecap fraction (a proxy for bubbles) was also measured and has a positive relationship with Δkw, consistent with enhanced bubble-mediated transfer of the less soluble CO2 relative to that of the more soluble DMS. However, the correlation of Δkw with whitecap fraction is no stronger than with wind speed. Models used to estimate bubble-mediated transfer from in situ whitecap fraction underpredict the observations, particularly at intermediate wind speeds. Examining the differences between gas transfer velocities of gases with different solubilities is a useful way to detect the impact of bubble-mediated exchange. More simultaneous gas transfer measurements of different solubility gases across a wide range of oceanic conditions are needed to understand the factors controlling the magnitude and scaling of bubble-mediated gas exchange. |
author2 |
National Science Foundation Prof. Eric Shooter via the Royal Society |
format |
Article in Journal/Newspaper |
author |
Bell, TG Landwehr, S Miller, SD De Bruyn, WJ Callaghan, AH Scanlon, B Ward, B Yang, M Saltzman, ES |
author_facet |
Bell, TG Landwehr, S Miller, SD De Bruyn, WJ Callaghan, AH Scanlon, B Ward, B Yang, M Saltzman, ES |
author_sort |
Bell, TG |
title |
Estimation of bubble-mediated air–sea gas exchange from concurrent DMS and CO2 transfer velocities at intermediate–high wind speeds |
title_short |
Estimation of bubble-mediated air–sea gas exchange from concurrent DMS and CO2 transfer velocities at intermediate–high wind speeds |
title_full |
Estimation of bubble-mediated air–sea gas exchange from concurrent DMS and CO2 transfer velocities at intermediate–high wind speeds |
title_fullStr |
Estimation of bubble-mediated air–sea gas exchange from concurrent DMS and CO2 transfer velocities at intermediate–high wind speeds |
title_full_unstemmed |
Estimation of bubble-mediated air–sea gas exchange from concurrent DMS and CO2 transfer velocities at intermediate–high wind speeds |
title_sort |
estimation of bubble-mediated air–sea gas exchange from concurrent dms and co2 transfer velocities at intermediate–high wind speeds |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
http://hdl.handle.net/10044/1/68663 https://doi.org/10.5194/acp-17-9019-2017 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
9033 9019 |
op_relation |
Atmospheric Chemistry and Physics |
op_rights |
© 2017 Author(s). This work is distributed under the Creative Commons Attribution 3.0 License (https://creativecommons.org/licenses/by/3.0/). |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/acp-17-9019-2017 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
17 |
container_issue |
14 |
container_start_page |
9019 |
op_container_end_page |
9033 |
_version_ |
1766132556076417024 |