2008), The response of ice shelf basal melting to variations in ocean temperature
A three-dimensional ocean general circulation model is used to study the response of idealized ice shelves to a series of ocean-warming scenarios. The model predicts that the total ice shelf basal melt increases quadratically as the ocean offshore of the ice front warms. This occurs because the melt...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.538.9904 2023-05-15T13:53:03+02:00 2008), The response of ice shelf basal melting to variations in ocean temperature Paul R. Holland Adrian Jenkins David M. Holland The Pennsylvania State University CiteSeerX Archives 1175 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.538.9904 http://efdl.cims.nyu.edu/publications/refereed/jclimate_nonlinear_warm_08.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.538.9904 http://efdl.cims.nyu.edu/publications/refereed/jclimate_nonlinear_warm_08.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://efdl.cims.nyu.edu/publications/refereed/jclimate_nonlinear_warm_08.pdf text 1175 ftciteseerx 2016-01-08T10:56:51Z A three-dimensional ocean general circulation model is used to study the response of idealized ice shelves to a series of ocean-warming scenarios. The model predicts that the total ice shelf basal melt increases quadratically as the ocean offshore of the ice front warms. This occurs because the melt rate is proportional to the product of ocean flow speed and temperature in the mixed layer directly beneath the ice shelf, both of which are found to increase linearly with ocean warming. The behavior of this complex primitive equation model can be described surprisingly well with recourse to an idealized reduced system of equa-tions, and it is shown that this system supports a melt rate response to warming that is generally quadratic in nature. This study confirms and unifies several previous examinations of the relation between melt rate and ocean temperature but disagrees with other results, particularly the claim that a single melt rate sensitivity to warming is universally valid. The hypothesized warming does not necessarily require a heat input to the ocean, as warmer waters (or larger volumes of “warm ” water) may reach ice shelves purely through a shift in ocean circulation. Since ice shelves link the Antarctic Ice Sheet to the climate of the Southern Ocean, this finding of an above-linear rise in ice shelf mass loss as the ocean steadily warms is of significant importance to understanding ice sheet evolution and sea level rise. 1. Text Antarc* Antarctic Ice Sheet Ice Shelf Ice Shelves Southern Ocean Unknown Antarctic Southern Ocean The Antarctic |
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ftciteseerx |
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English |
description |
A three-dimensional ocean general circulation model is used to study the response of idealized ice shelves to a series of ocean-warming scenarios. The model predicts that the total ice shelf basal melt increases quadratically as the ocean offshore of the ice front warms. This occurs because the melt rate is proportional to the product of ocean flow speed and temperature in the mixed layer directly beneath the ice shelf, both of which are found to increase linearly with ocean warming. The behavior of this complex primitive equation model can be described surprisingly well with recourse to an idealized reduced system of equa-tions, and it is shown that this system supports a melt rate response to warming that is generally quadratic in nature. This study confirms and unifies several previous examinations of the relation between melt rate and ocean temperature but disagrees with other results, particularly the claim that a single melt rate sensitivity to warming is universally valid. The hypothesized warming does not necessarily require a heat input to the ocean, as warmer waters (or larger volumes of “warm ” water) may reach ice shelves purely through a shift in ocean circulation. Since ice shelves link the Antarctic Ice Sheet to the climate of the Southern Ocean, this finding of an above-linear rise in ice shelf mass loss as the ocean steadily warms is of significant importance to understanding ice sheet evolution and sea level rise. 1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Paul R. Holland Adrian Jenkins David M. Holland |
spellingShingle |
Paul R. Holland Adrian Jenkins David M. Holland 2008), The response of ice shelf basal melting to variations in ocean temperature |
author_facet |
Paul R. Holland Adrian Jenkins David M. Holland |
author_sort |
Paul R. Holland |
title |
2008), The response of ice shelf basal melting to variations in ocean temperature |
title_short |
2008), The response of ice shelf basal melting to variations in ocean temperature |
title_full |
2008), The response of ice shelf basal melting to variations in ocean temperature |
title_fullStr |
2008), The response of ice shelf basal melting to variations in ocean temperature |
title_full_unstemmed |
2008), The response of ice shelf basal melting to variations in ocean temperature |
title_sort |
2008), the response of ice shelf basal melting to variations in ocean temperature |
publishDate |
1175 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.538.9904 http://efdl.cims.nyu.edu/publications/refereed/jclimate_nonlinear_warm_08.pdf |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Ice Sheet Ice Shelf Ice Shelves Southern Ocean |
genre_facet |
Antarc* Antarctic Ice Sheet Ice Shelf Ice Shelves Southern Ocean |
op_source |
http://efdl.cims.nyu.edu/publications/refereed/jclimate_nonlinear_warm_08.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.538.9904 http://efdl.cims.nyu.edu/publications/refereed/jclimate_nonlinear_warm_08.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766258014733467648 |