The refreezing of melt ponds on Arctic sea ice
The presence of melt ponds on the surface of Arctic sea ice significantly reduces its albedo, inducing a positive feedback leading to sea ice thinning. While the role of melt ponds in enhancing the summer melt of sea ice is well known, their impact on suppressing winter freezing of sea ice has, hith...
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American Geophysical Union
2015
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ftunivreading:oai:centaur.reading.ac.uk:54552 2024-09-15T17:35:57+00:00 The refreezing of melt ponds on Arctic sea ice Flocco, Daniela Feltham, Daniel L. Bailey, Eleanor Schroeder, David 2015-03-12 text https://centaur.reading.ac.uk/54552/ https://centaur.reading.ac.uk/54552/1/flocco_etal2015.pdf https://doi.org/10.1002/2014JC010140 en eng American Geophysical Union https://centaur.reading.ac.uk/54552/1/flocco_etal2015.pdf Flocco, D. <https://centaur.reading.ac.uk/view/creators/90005015.html>, Feltham, D. L. <https://centaur.reading.ac.uk/view/creators/90004991.html> orcid:0000-0003-2289-014X , Bailey, E. and Schroeder, D. <https://centaur.reading.ac.uk/view/creators/90005031.html> orcid:0000-0003-2351-4306 (2015) The refreezing of melt ponds on Arctic sea ice. Journal of Geophysical Research: Oceans, 120 (2). pp. 647-659. ISSN 2169-9291 doi: https://doi.org/10.1002/2014JC010140 <https://doi.org/10.1002/2014JC010140> Article PeerReviewed 2015 ftunivreading https://doi.org/10.1002/2014JC010140 2024-06-25T14:58:45Z The presence of melt ponds on the surface of Arctic sea ice significantly reduces its albedo, inducing a positive feedback leading to sea ice thinning. While the role of melt ponds in enhancing the summer melt of sea ice is well known, their impact on suppressing winter freezing of sea ice has, hitherto, received less attention. Melt ponds freeze by forming an ice lid at the upper surface, which insulates them from the atmosphere and traps pond water between the underlying sea ice and the ice lid. The pond water is a store of latent heat, which is released during refreezing. Until a pond freezes completely, there can be minimal ice growth at the base of the underlying sea ice. In this work, we present a model of the refreezing of a melt pond that includes the heat and salt balances in the ice lid, trapped pond, and underlying sea ice. The model uses a two-stream radiation model to account for radiative scattering at phase boundaries. Simulations and related sensitivity studies suggest that trapped pond water may survive for over a month. We focus on the role that pond salinity has on delaying the refreezing process and retarding basal sea ice growth. We estimate that for a typical sea ice pond coverage in autumn, excluding the impact of trapped ponds in models overestimates ice growth by up to 265 million km3, an overestimate of 26%. Article in Journal/Newspaper albedo Arctic Sea ice CentAUR: Central Archive at the University of Reading Journal of Geophysical Research: Oceans 120 2 647 659 |
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Open Polar |
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CentAUR: Central Archive at the University of Reading |
op_collection_id |
ftunivreading |
language |
English |
description |
The presence of melt ponds on the surface of Arctic sea ice significantly reduces its albedo, inducing a positive feedback leading to sea ice thinning. While the role of melt ponds in enhancing the summer melt of sea ice is well known, their impact on suppressing winter freezing of sea ice has, hitherto, received less attention. Melt ponds freeze by forming an ice lid at the upper surface, which insulates them from the atmosphere and traps pond water between the underlying sea ice and the ice lid. The pond water is a store of latent heat, which is released during refreezing. Until a pond freezes completely, there can be minimal ice growth at the base of the underlying sea ice. In this work, we present a model of the refreezing of a melt pond that includes the heat and salt balances in the ice lid, trapped pond, and underlying sea ice. The model uses a two-stream radiation model to account for radiative scattering at phase boundaries. Simulations and related sensitivity studies suggest that trapped pond water may survive for over a month. We focus on the role that pond salinity has on delaying the refreezing process and retarding basal sea ice growth. We estimate that for a typical sea ice pond coverage in autumn, excluding the impact of trapped ponds in models overestimates ice growth by up to 265 million km3, an overestimate of 26%. |
format |
Article in Journal/Newspaper |
author |
Flocco, Daniela Feltham, Daniel L. Bailey, Eleanor Schroeder, David |
spellingShingle |
Flocco, Daniela Feltham, Daniel L. Bailey, Eleanor Schroeder, David The refreezing of melt ponds on Arctic sea ice |
author_facet |
Flocco, Daniela Feltham, Daniel L. Bailey, Eleanor Schroeder, David |
author_sort |
Flocco, Daniela |
title |
The refreezing of melt ponds on Arctic sea ice |
title_short |
The refreezing of melt ponds on Arctic sea ice |
title_full |
The refreezing of melt ponds on Arctic sea ice |
title_fullStr |
The refreezing of melt ponds on Arctic sea ice |
title_full_unstemmed |
The refreezing of melt ponds on Arctic sea ice |
title_sort |
refreezing of melt ponds on arctic sea ice |
publisher |
American Geophysical Union |
publishDate |
2015 |
url |
https://centaur.reading.ac.uk/54552/ https://centaur.reading.ac.uk/54552/1/flocco_etal2015.pdf https://doi.org/10.1002/2014JC010140 |
genre |
albedo Arctic Sea ice |
genre_facet |
albedo Arctic Sea ice |
op_relation |
https://centaur.reading.ac.uk/54552/1/flocco_etal2015.pdf Flocco, D. <https://centaur.reading.ac.uk/view/creators/90005015.html>, Feltham, D. L. <https://centaur.reading.ac.uk/view/creators/90004991.html> orcid:0000-0003-2289-014X , Bailey, E. and Schroeder, D. <https://centaur.reading.ac.uk/view/creators/90005031.html> orcid:0000-0003-2351-4306 (2015) The refreezing of melt ponds on Arctic sea ice. Journal of Geophysical Research: Oceans, 120 (2). pp. 647-659. ISSN 2169-9291 doi: https://doi.org/10.1002/2014JC010140 <https://doi.org/10.1002/2014JC010140> |
op_doi |
https://doi.org/10.1002/2014JC010140 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
120 |
container_issue |
2 |
container_start_page |
647 |
op_container_end_page |
659 |
_version_ |
1810486349967392768 |