Modelling the response of ice shelf basal melting to different ocean cavity environmental regimes
We present simulation results from a version of the Regional Ocean Modeling System modified for ice shelf/ocean interaction, including the parameterisation of basal melting by molecular diffusion alone. Simulations investigate the differences in melting for an idealised ice shelf experiencing a rang...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2016-09-01
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| Series: | Annals of Glaciology |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S0260305516000318/type/journal_article |
| _version_ | 1827995973381521408 |
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| author | David E. Gwyther Eva A. Cougnon Benjamin K. Galton-Fenzi Jason L. Roberts John R. Hunter Michael S. Dinniman |
| author_facet | David E. Gwyther Eva A. Cougnon Benjamin K. Galton-Fenzi Jason L. Roberts John R. Hunter Michael S. Dinniman |
| author_sort | David E. Gwyther |
| collection | DOAJ |
| description | We present simulation results from a version of the Regional Ocean Modeling System modified for ice shelf/ocean interaction, including the parameterisation of basal melting by molecular diffusion alone. Simulations investigate the differences in melting for an idealised ice shelf experiencing a range of cold to hot ocean cavity conditions. Both the pattern of melt and the location of maximum melt shift due to changes in the buoyancy-driven circulation, in a different way to previous studies. Tidal forcing increases both the circulation strength and melting, with the strongest impact on the cold cavity case. Our results highlight the importance of including a complete melt parameterisation and tidal forcing. In response to the 2.4°C ocean warming initially applied to a cold cavity ice shelf, we find that melting will increase by about an order of magnitude (24 × with tides and 41 × without tides). |
| first_indexed | 2024-04-10T05:04:52Z |
| format | Article |
| id | doaj.art-7c28ab483f2846c8994ce7c608b25ce7 |
| institution | Directory Open Access Journal |
| issn | 0260-3055 1727-5644 |
| language | English |
| last_indexed | 2024-04-10T05:04:52Z |
| publishDate | 2016-09-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Annals of Glaciology |
| spelling | doaj.art-7c28ab483f2846c8994ce7c608b25ce72023-03-09T12:27:29ZengCambridge University PressAnnals of Glaciology0260-30551727-56442016-09-015713114110.1017/aog.2016.31Modelling the response of ice shelf basal melting to different ocean cavity environmental regimesDavid E. Gwyther0Eva A. Cougnon1Benjamin K. Galton-Fenzi2Jason L. Roberts3John R. Hunter4Michael S. Dinniman5Institute for Marine and Antarctic Studies, University of Tasmania, Private Bag 129, Hobart, Tasmania 7001, Australia E-mail: Antarctic Climate & Ecosystems Cooperative Research Centre, University of Tasmania, Private Bag 80, Hobart, Tasmania 7001, AustraliaInstitute for Marine and Antarctic Studies, University of Tasmania, Private Bag 129, Hobart, Tasmania 7001, Australia E-mail: Antarctic Climate & Ecosystems Cooperative Research Centre, University of Tasmania, Private Bag 80, Hobart, Tasmania 7001, Australia Commonwealth Scientific and Industrial Research Organisation, Marine and Atmospheric Research, Hobart, AustraliaAntarctic Climate & Ecosystems Cooperative Research Centre, University of Tasmania, Private Bag 80, Hobart, Tasmania 7001, Australia Australian Antarctic Division, Channel Highway, Kingston, Tasmania, 7050, AustraliaAntarctic Climate & Ecosystems Cooperative Research Centre, University of Tasmania, Private Bag 80, Hobart, Tasmania 7001, Australia Australian Antarctic Division, Channel Highway, Kingston, Tasmania, 7050, AustraliaAntarctic Climate & Ecosystems Cooperative Research Centre, University of Tasmania, Private Bag 80, Hobart, Tasmania 7001, AustraliaCenter for Coastal Physical Oceanography, Old Dominion University, Norfolk, VA, USAWe present simulation results from a version of the Regional Ocean Modeling System modified for ice shelf/ocean interaction, including the parameterisation of basal melting by molecular diffusion alone. Simulations investigate the differences in melting for an idealised ice shelf experiencing a range of cold to hot ocean cavity conditions. Both the pattern of melt and the location of maximum melt shift due to changes in the buoyancy-driven circulation, in a different way to previous studies. Tidal forcing increases both the circulation strength and melting, with the strongest impact on the cold cavity case. Our results highlight the importance of including a complete melt parameterisation and tidal forcing. In response to the 2.4°C ocean warming initially applied to a cold cavity ice shelf, we find that melting will increase by about an order of magnitude (24 × with tides and 41 × without tides).https://www.cambridge.org/core/product/identifier/S0260305516000318/type/journal_articleice shelvesice/ocean interactionsmelt - basal |
| spellingShingle | David E. Gwyther Eva A. Cougnon Benjamin K. Galton-Fenzi Jason L. Roberts John R. Hunter Michael S. Dinniman Modelling the response of ice shelf basal melting to different ocean cavity environmental regimes Annals of Glaciology ice shelves ice/ocean interactions melt - basal |
| title | Modelling the response of ice shelf basal melting to different ocean cavity environmental regimes |
| title_full | Modelling the response of ice shelf basal melting to different ocean cavity environmental regimes |
| title_fullStr | Modelling the response of ice shelf basal melting to different ocean cavity environmental regimes |
| title_full_unstemmed | Modelling the response of ice shelf basal melting to different ocean cavity environmental regimes |
| title_short | Modelling the response of ice shelf basal melting to different ocean cavity environmental regimes |
| title_sort | modelling the response of ice shelf basal melting to different ocean cavity environmental regimes |
| topic | ice shelves ice/ocean interactions melt - basal |
| url | https://www.cambridge.org/core/product/identifier/S0260305516000318/type/journal_article |
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