Sea ice as a source of sea salt aerosol to Greenland ice cores: a model-based study
Growing evidence suggests that the sea ice surface is an important source of sea salt aerosol and this has significant implications for polar climate and atmospheric chemistry. It also suggests the potential to use ice core sea salt records as proxies for past sea ice extent. To explore this possibi...
Published in: | Atmospheric Chemistry and Physics |
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Language: | English |
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2017
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Online Access: | https://nrl.northumbria.ac.uk/id/eprint/37614/ https://doi.org/10.5194/acp-17-9417-2017 https://nrl.northumbria.ac.uk/id/eprint/37614/1/Rhodes%20et%20al%20-%20Sea%20ice%20as%20a%20source%20of%20sea%20salt%20aerosol%20to%20Greenland%20ice%20cores%20OA.pdf |
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ftunivnorthumb:oai:nrl.northumbria.ac.uk:37614 2023-05-15T14:59:59+02:00 Sea ice as a source of sea salt aerosol to Greenland ice cores: a model-based study Rhodes, Rachael H. Yang, Xin Wolff, Eric W. McConnell, Joseph R. Frey, Markus M. 2017-08-07 text https://nrl.northumbria.ac.uk/id/eprint/37614/ https://doi.org/10.5194/acp-17-9417-2017 https://nrl.northumbria.ac.uk/id/eprint/37614/1/Rhodes%20et%20al%20-%20Sea%20ice%20as%20a%20source%20of%20sea%20salt%20aerosol%20to%20Greenland%20ice%20cores%20OA.pdf en eng Copernicus Publications https://nrl.northumbria.ac.uk/id/eprint/37614/1/Rhodes%20et%20al%20-%20Sea%20ice%20as%20a%20source%20of%20sea%20salt%20aerosol%20to%20Greenland%20ice%20cores%20OA.pdf Rhodes, Rachael H., Yang, Xin, Wolff, Eric W., McConnell, Joseph R. and Frey, Markus M. (2017) Sea ice as a source of sea salt aerosol to Greenland ice cores: a model-based study. Atmospheric Chemistry and Physics, 17 (15). pp. 9417-9433. ISSN 1680-7324 cc_by CC-BY F800 Physical and Terrestrial Geographical and Environmental Sciences Article PeerReviewed 2017 ftunivnorthumb https://doi.org/10.5194/acp-17-9417-2017 2022-09-25T06:08:59Z Growing evidence suggests that the sea ice surface is an important source of sea salt aerosol and this has significant implications for polar climate and atmospheric chemistry. It also suggests the potential to use ice core sea salt records as proxies for past sea ice extent. To explore this possibility in the Arctic region, we use a chemical transport model to track the emission, transport, and deposition of sea salt from both the open ocean and the sea ice, allowing us to assess the relative importance of each. Our results confirm the importance of sea ice sea salt (SISS) to the winter Arctic aerosol burden. For the first time, we explicitly simulate the sea salt concentrations of Greenland snow, achieving values within a factor of two of Greenland ice core records. Our simulations suggest that SISS contributes to the winter maxima in sea salt characteristic of ice cores across Greenland. However, a north–south gradient in the contribution of SISS relative to open-ocean sea salt (OOSS) exists across Greenland, with 50% of winter sea salt being SISS at northern sites such as NEEM (77°N), while only 10% of winter sea salt is SISS at southern locations such as ACT10C (66°N). Our model shows some skill at reproducing the inter-annual variability in sea salt concentrations for 1991–1999, particularly at Summit where up to 62% of the variability is explained. Future work will involve constraining what is driving this inter-annual variability and operating the model under different palaeoclimatic conditions. Article in Journal/Newspaper Arctic Greenland Greenland ice core Greenland ice cores ice core Sea ice Northumbria University, Newcastle: Northumbria Research Link (NRL) Arctic Greenland Atmospheric Chemistry and Physics 17 15 9417 9433 |
institution |
Open Polar |
collection |
Northumbria University, Newcastle: Northumbria Research Link (NRL) |
op_collection_id |
ftunivnorthumb |
language |
English |
topic |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
spellingShingle |
F800 Physical and Terrestrial Geographical and Environmental Sciences Rhodes, Rachael H. Yang, Xin Wolff, Eric W. McConnell, Joseph R. Frey, Markus M. Sea ice as a source of sea salt aerosol to Greenland ice cores: a model-based study |
topic_facet |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
description |
Growing evidence suggests that the sea ice surface is an important source of sea salt aerosol and this has significant implications for polar climate and atmospheric chemistry. It also suggests the potential to use ice core sea salt records as proxies for past sea ice extent. To explore this possibility in the Arctic region, we use a chemical transport model to track the emission, transport, and deposition of sea salt from both the open ocean and the sea ice, allowing us to assess the relative importance of each. Our results confirm the importance of sea ice sea salt (SISS) to the winter Arctic aerosol burden. For the first time, we explicitly simulate the sea salt concentrations of Greenland snow, achieving values within a factor of two of Greenland ice core records. Our simulations suggest that SISS contributes to the winter maxima in sea salt characteristic of ice cores across Greenland. However, a north–south gradient in the contribution of SISS relative to open-ocean sea salt (OOSS) exists across Greenland, with 50% of winter sea salt being SISS at northern sites such as NEEM (77°N), while only 10% of winter sea salt is SISS at southern locations such as ACT10C (66°N). Our model shows some skill at reproducing the inter-annual variability in sea salt concentrations for 1991–1999, particularly at Summit where up to 62% of the variability is explained. Future work will involve constraining what is driving this inter-annual variability and operating the model under different palaeoclimatic conditions. |
format |
Article in Journal/Newspaper |
author |
Rhodes, Rachael H. Yang, Xin Wolff, Eric W. McConnell, Joseph R. Frey, Markus M. |
author_facet |
Rhodes, Rachael H. Yang, Xin Wolff, Eric W. McConnell, Joseph R. Frey, Markus M. |
author_sort |
Rhodes, Rachael H. |
title |
Sea ice as a source of sea salt aerosol to Greenland ice cores: a model-based study |
title_short |
Sea ice as a source of sea salt aerosol to Greenland ice cores: a model-based study |
title_full |
Sea ice as a source of sea salt aerosol to Greenland ice cores: a model-based study |
title_fullStr |
Sea ice as a source of sea salt aerosol to Greenland ice cores: a model-based study |
title_full_unstemmed |
Sea ice as a source of sea salt aerosol to Greenland ice cores: a model-based study |
title_sort |
sea ice as a source of sea salt aerosol to greenland ice cores: a model-based study |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://nrl.northumbria.ac.uk/id/eprint/37614/ https://doi.org/10.5194/acp-17-9417-2017 https://nrl.northumbria.ac.uk/id/eprint/37614/1/Rhodes%20et%20al%20-%20Sea%20ice%20as%20a%20source%20of%20sea%20salt%20aerosol%20to%20Greenland%20ice%20cores%20OA.pdf |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Greenland Greenland ice core Greenland ice cores ice core Sea ice |
genre_facet |
Arctic Greenland Greenland ice core Greenland ice cores ice core Sea ice |
op_relation |
https://nrl.northumbria.ac.uk/id/eprint/37614/1/Rhodes%20et%20al%20-%20Sea%20ice%20as%20a%20source%20of%20sea%20salt%20aerosol%20to%20Greenland%20ice%20cores%20OA.pdf Rhodes, Rachael H., Yang, Xin, Wolff, Eric W., McConnell, Joseph R. and Frey, Markus M. (2017) Sea ice as a source of sea salt aerosol to Greenland ice cores: a model-based study. Atmospheric Chemistry and Physics, 17 (15). pp. 9417-9433. ISSN 1680-7324 |
op_rights |
cc_by |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/acp-17-9417-2017 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
17 |
container_issue |
15 |
container_start_page |
9417 |
op_container_end_page |
9433 |
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1766332094047322112 |