Increased oceanic dimethyl sulfide emissions in areas of sea ice retreat inferred from a Greenland ice core
Ocean phytoplankton are an important source of dimethyl sulfide, which influences marine cloud formation. Model studies suggest that declines in Arctic sea ice may lead to increased dimethyl sulfide emissions, however observational support is lacking. Here, we present a 55-year high-resolution ice c...
Published in: | Communications Earth & Environment |
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Language: | English |
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Online Access: | http://hdl.handle.net/2115/87619 https://doi.org/10.1038/s43247-022-00661-w |
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/87619 2023-05-15T15:03:20+02:00 Increased oceanic dimethyl sulfide emissions in areas of sea ice retreat inferred from a Greenland ice core Kurosaki, Yutaka Matoba, Sumito Iizuka, Yoshinori Fujita, Koji Shimada, Rigen http://hdl.handle.net/2115/87619 https://doi.org/10.1038/s43247-022-00661-w eng eng http://hdl.handle.net/2115/87619 Communications Earth & Environment, 3(1): 327 http://dx.doi.org/10.1038/s43247-022-00661-w https://creativecommons.org/licenses/by/4.0/ CC-BY Cryospheric science Marine chemistry Palaeoclimate 450 article fthokunivhus https://doi.org/10.1038/s43247-022-00661-w 2023-01-13T02:11:36Z Ocean phytoplankton are an important source of dimethyl sulfide, which influences marine cloud formation. Model studies suggest that declines in Arctic sea ice may lead to increased dimethyl sulfide emissions, however observational support is lacking. Here, we present a 55-year high-resolution ice core record of methane sulfonic acid flux, an oxidation product of dimethyl sulfide, from the southeast Greenland Ice Sheet. We infer temporal variations in ocean dimethyl sulfide emissions and find that springtime (April–June) fluxes of methane sulfonic acid correlate well with satellite-derived chlorophyll-a concentration in the Irminger Sea. Summertime (July–September) methane sulfonic acid fluxes were 3 to 6 times higher between 2002–2014 than 1972–2001. We attribute this to sea ice retreat day becoming earlier and a coincident increase in chlorophyll-a concentration in the adjacent open coastal waters. Article in Journal/Newspaper Arctic Greenland Greenland ice core ice core Ice Sheet Phytoplankton Sea ice Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Arctic Greenland Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Communications Earth & Environment 3 1 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
Cryospheric science Marine chemistry Palaeoclimate 450 |
spellingShingle |
Cryospheric science Marine chemistry Palaeoclimate 450 Kurosaki, Yutaka Matoba, Sumito Iizuka, Yoshinori Fujita, Koji Shimada, Rigen Increased oceanic dimethyl sulfide emissions in areas of sea ice retreat inferred from a Greenland ice core |
topic_facet |
Cryospheric science Marine chemistry Palaeoclimate 450 |
description |
Ocean phytoplankton are an important source of dimethyl sulfide, which influences marine cloud formation. Model studies suggest that declines in Arctic sea ice may lead to increased dimethyl sulfide emissions, however observational support is lacking. Here, we present a 55-year high-resolution ice core record of methane sulfonic acid flux, an oxidation product of dimethyl sulfide, from the southeast Greenland Ice Sheet. We infer temporal variations in ocean dimethyl sulfide emissions and find that springtime (April–June) fluxes of methane sulfonic acid correlate well with satellite-derived chlorophyll-a concentration in the Irminger Sea. Summertime (July–September) methane sulfonic acid fluxes were 3 to 6 times higher between 2002–2014 than 1972–2001. We attribute this to sea ice retreat day becoming earlier and a coincident increase in chlorophyll-a concentration in the adjacent open coastal waters. |
format |
Article in Journal/Newspaper |
author |
Kurosaki, Yutaka Matoba, Sumito Iizuka, Yoshinori Fujita, Koji Shimada, Rigen |
author_facet |
Kurosaki, Yutaka Matoba, Sumito Iizuka, Yoshinori Fujita, Koji Shimada, Rigen |
author_sort |
Kurosaki, Yutaka |
title |
Increased oceanic dimethyl sulfide emissions in areas of sea ice retreat inferred from a Greenland ice core |
title_short |
Increased oceanic dimethyl sulfide emissions in areas of sea ice retreat inferred from a Greenland ice core |
title_full |
Increased oceanic dimethyl sulfide emissions in areas of sea ice retreat inferred from a Greenland ice core |
title_fullStr |
Increased oceanic dimethyl sulfide emissions in areas of sea ice retreat inferred from a Greenland ice core |
title_full_unstemmed |
Increased oceanic dimethyl sulfide emissions in areas of sea ice retreat inferred from a Greenland ice core |
title_sort |
increased oceanic dimethyl sulfide emissions in areas of sea ice retreat inferred from a greenland ice core |
url |
http://hdl.handle.net/2115/87619 https://doi.org/10.1038/s43247-022-00661-w |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Arctic Greenland Irminger Sea |
geographic_facet |
Arctic Greenland Irminger Sea |
genre |
Arctic Greenland Greenland ice core ice core Ice Sheet Phytoplankton Sea ice |
genre_facet |
Arctic Greenland Greenland ice core ice core Ice Sheet Phytoplankton Sea ice |
op_relation |
http://hdl.handle.net/2115/87619 Communications Earth & Environment, 3(1): 327 http://dx.doi.org/10.1038/s43247-022-00661-w |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s43247-022-00661-w |
container_title |
Communications Earth & Environment |
container_volume |
3 |
container_issue |
1 |
_version_ |
1766335195769733120 |