Extreme spikes in DMS flux double estimates of biogenic sulfur export from the Antarctic coastal zone to the atmosphere
Biogenic dimethylsulfide (DMS) is a significant contributor to sulfur flux from the oceans to the atmosphere, and the most significant source of aerosol non sea-salt sulfate (NSS-SO42−), a key regulator of global climate. Here we present the longest running time-series of DMS-water (DMSW) concentrat...
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Online Access: | http://nora.nerc.ac.uk/id/eprint/522343/ https://nora.nerc.ac.uk/id/eprint/522343/1/s41598-019-38714-4.pdf https://www.nature.com/articles/s41598-019-38714-4 |
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ftnerc:oai:nora.nerc.ac.uk:522343 2023-05-15T13:41:43+02:00 Extreme spikes in DMS flux double estimates of biogenic sulfur export from the Antarctic coastal zone to the atmosphere Webb, AL van Leeuwe, MA den Os, D Meredith, Michael Venables, Hugh Stefels, J 2019-02-19 text http://nora.nerc.ac.uk/id/eprint/522343/ https://nora.nerc.ac.uk/id/eprint/522343/1/s41598-019-38714-4.pdf https://www.nature.com/articles/s41598-019-38714-4 en eng https://nora.nerc.ac.uk/id/eprint/522343/1/s41598-019-38714-4.pdf Webb, AL; van Leeuwe, MA; den Os, D; Meredith, Michael orcid:0000-0002-7342-7756 Venables, Hugh; Stefels, J. 2019 Extreme spikes in DMS flux double estimates of biogenic sulfur export from the Antarctic coastal zone to the atmosphere. Scientific Reports, 9, 2233. https://doi.org/10.1038/s41598-019-38714-4 <https://doi.org/10.1038/s41598-019-38714-4> cc_by_4 CC-BY Publication - Article PeerReviewed 2019 ftnerc https://doi.org/10.1038/s41598-019-38714-4 2023-02-04T19:47:50Z Biogenic dimethylsulfide (DMS) is a significant contributor to sulfur flux from the oceans to the atmosphere, and the most significant source of aerosol non sea-salt sulfate (NSS-SO42−), a key regulator of global climate. Here we present the longest running time-series of DMS-water (DMSW) concentrations in the world, obtained at the Rothera Time-Series (RaTS) station in Ryder Bay, West Antarctic Peninsula (WAP). We demonstrate the first ever evaluation of interseasonal and interannual variability in DMSW and associated flux to the atmosphere from the Antarctic coastal zone and determine the scale and importance of the region as a significant source of DMS. Impacts of climate modes such as El Niňo/Southern Oscillation are evaluated. Maximum DMSW concentrations occurred annually in January and were primarily associated with sea-ice break-up. These concentrations resulted in extremely high (up to 968 µmol m−2 d−1) DMS flux over short timescales, which are not parameterised in global-scale DMS climatologies. Calculated DMS flux stayed above the aerosol nucleation threshold of 2.5 µmol m−2 d−1 for 60% of the year. Overall, using flux determinations from this study, the total flux of DMS-sulfur from the Austral Polar Province (APLR) was 1.1 Tg sulfur yr−1, more than double the figure suggested by the most recent DMS climatologies. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Sea ice Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Antarctic Peninsula Austral Rothera ENVELOPE(-68.130,-68.130,-67.568,-67.568) Ryder ENVELOPE(-68.333,-68.333,-67.566,-67.566) Ryder Bay ENVELOPE(-68.333,-68.333,-67.567,-67.567) Scientific Reports 9 1 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
language |
English |
description |
Biogenic dimethylsulfide (DMS) is a significant contributor to sulfur flux from the oceans to the atmosphere, and the most significant source of aerosol non sea-salt sulfate (NSS-SO42−), a key regulator of global climate. Here we present the longest running time-series of DMS-water (DMSW) concentrations in the world, obtained at the Rothera Time-Series (RaTS) station in Ryder Bay, West Antarctic Peninsula (WAP). We demonstrate the first ever evaluation of interseasonal and interannual variability in DMSW and associated flux to the atmosphere from the Antarctic coastal zone and determine the scale and importance of the region as a significant source of DMS. Impacts of climate modes such as El Niňo/Southern Oscillation are evaluated. Maximum DMSW concentrations occurred annually in January and were primarily associated with sea-ice break-up. These concentrations resulted in extremely high (up to 968 µmol m−2 d−1) DMS flux over short timescales, which are not parameterised in global-scale DMS climatologies. Calculated DMS flux stayed above the aerosol nucleation threshold of 2.5 µmol m−2 d−1 for 60% of the year. Overall, using flux determinations from this study, the total flux of DMS-sulfur from the Austral Polar Province (APLR) was 1.1 Tg sulfur yr−1, more than double the figure suggested by the most recent DMS climatologies. |
format |
Article in Journal/Newspaper |
author |
Webb, AL van Leeuwe, MA den Os, D Meredith, Michael Venables, Hugh Stefels, J |
spellingShingle |
Webb, AL van Leeuwe, MA den Os, D Meredith, Michael Venables, Hugh Stefels, J Extreme spikes in DMS flux double estimates of biogenic sulfur export from the Antarctic coastal zone to the atmosphere |
author_facet |
Webb, AL van Leeuwe, MA den Os, D Meredith, Michael Venables, Hugh Stefels, J |
author_sort |
Webb, AL |
title |
Extreme spikes in DMS flux double estimates of biogenic sulfur export from the Antarctic coastal zone to the atmosphere |
title_short |
Extreme spikes in DMS flux double estimates of biogenic sulfur export from the Antarctic coastal zone to the atmosphere |
title_full |
Extreme spikes in DMS flux double estimates of biogenic sulfur export from the Antarctic coastal zone to the atmosphere |
title_fullStr |
Extreme spikes in DMS flux double estimates of biogenic sulfur export from the Antarctic coastal zone to the atmosphere |
title_full_unstemmed |
Extreme spikes in DMS flux double estimates of biogenic sulfur export from the Antarctic coastal zone to the atmosphere |
title_sort |
extreme spikes in dms flux double estimates of biogenic sulfur export from the antarctic coastal zone to the atmosphere |
publishDate |
2019 |
url |
http://nora.nerc.ac.uk/id/eprint/522343/ https://nora.nerc.ac.uk/id/eprint/522343/1/s41598-019-38714-4.pdf https://www.nature.com/articles/s41598-019-38714-4 |
long_lat |
ENVELOPE(-68.130,-68.130,-67.568,-67.568) ENVELOPE(-68.333,-68.333,-67.566,-67.566) ENVELOPE(-68.333,-68.333,-67.567,-67.567) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Austral Rothera Ryder Ryder Bay |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Austral Rothera Ryder Ryder Bay |
genre |
Antarc* Antarctic Antarctic Peninsula Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Sea ice |
op_relation |
https://nora.nerc.ac.uk/id/eprint/522343/1/s41598-019-38714-4.pdf Webb, AL; van Leeuwe, MA; den Os, D; Meredith, Michael orcid:0000-0002-7342-7756 Venables, Hugh; Stefels, J. 2019 Extreme spikes in DMS flux double estimates of biogenic sulfur export from the Antarctic coastal zone to the atmosphere. Scientific Reports, 9, 2233. https://doi.org/10.1038/s41598-019-38714-4 <https://doi.org/10.1038/s41598-019-38714-4> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-019-38714-4 |
container_title |
Scientific Reports |
container_volume |
9 |
container_issue |
1 |
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1766154388302200832 |