Twenty-first century ocean forcing of the Greenland ice sheet for modelling of sea level contribution
This research has been supported by the National Science Foundation, Office of Polar Programs (grant no. 1916566), the National Science Foundation, Division of Ocean Sciences (grant no. 1756272), the National Aeronautics and Space Administration (grant no. NNX17AI03G), the National Science Foundatio...
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ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/19751 2023-07-02T03:32:19+02:00 Twenty-first century ocean forcing of the Greenland ice sheet for modelling of sea level contribution Slater, Donald A. Felikson, Denis Straneo, Fiamma Goelzer, Heiko Little, Christopher M. Morlighem, Mathieu Fettweis, Xavier Nowicki, Sophie University of St Andrews. School of Geography & Sustainable Development 2020-04-03T08:30:03Z 24 application/pdf http://hdl.handle.net/10023/19751 https://doi.org/10.5194/tc-14-985-2020 eng eng Cryosphere Slater , D A , Felikson , D , Straneo , F , Goelzer , H , Little , C M , Morlighem , M , Fettweis , X & Nowicki , S 2020 , ' Twenty-first century ocean forcing of the Greenland ice sheet for modelling of sea level contribution ' , Cryosphere , vol. 14 , no. 3 , pp. 985-1008 . https://doi.org/10.5194/tc-14-985-2020 1994-0416 PURE: 267190736 PURE UUID: 085576b3-7b41-4821-b28e-30d860f715e6 Scopus: 85082039794 ORCID: /0000-0001-8394-6149/work/71560070 http://hdl.handle.net/10023/19751 https://doi.org/10.5194/tc-14-985-2020 Copyright © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License. GC Oceanography GE Environmental Sciences Water Science and Technology Earth-Surface Processes DAS SDG 13 - Climate Action GC GE Journal article 2020 ftstandrewserep https://doi.org/10.5194/tc-14-985-2020 2023-06-13T18:25:47Z This research has been supported by the National Science Foundation, Office of Polar Programs (grant no. 1916566), the National Science Foundation, Division of Ocean Sciences (grant no. 1756272), the National Aeronautics and Space Administration (grant no. NNX17AI03G), the National Science Foundation, Office of Polar Programs (grant nos. 1513396 and 1504230), the Netherlands Earth System Science Centre (grant no. 024.002.001), the Fonds De La Recherche Scientifique – FNRS (grant no. 2.5020.11), and the FédérationWallonie-Bruxelles (grant no. 1117545). Changes in ocean temperature and salinity are expected to be an important determinant of the Greenland ice sheet's future sea level contribution. Yet, simulating the impact of these changes in continental-scale ice sheet models remains challenging due to the small scale of key physics, such as fjord circulation and plume dynamics, and poor understanding of critical processes, such as calving and submarine melting. Here we present the ocean forcing strategy for Greenland ice sheet models taking part in the Ice Sheet Model Intercomparison Project for CMIP6 (ISMIP6), the primary community effort to provide 21st century sea level projections for the Intergovernmental Panel on Climate Change Sixth Assessment Report. Beginning from global atmosphere-ocean general circulation models, we describe two complementary approaches to provide ocean boundary conditions for Greenland ice sheet models, termed the "retreat" and "submarine melt" implementations. The retreat implementation parameterises glacier retreat as a function of projected subglacial discharge and ocean thermal forcing, is designed to be implementable by all ice sheet models and results in retreat of around 1 and 15 km by 2100 in RCP2.6 and 8.5 scenarios, respectively. The submarine melt implementation provides estimated submarine melting only, leaving the ice sheet model to solve for the resulting calving and glacier retreat and suggests submarine melt rates will change little under RCP2.6 but will ... Article in Journal/Newspaper glacier Greenland Ice Sheet National Science Foundation Office of Polar Programs University of St Andrews: Digital Research Repository Greenland The Cryosphere 14 3 985 1008 |
institution |
Open Polar |
collection |
University of St Andrews: Digital Research Repository |
op_collection_id |
ftstandrewserep |
language |
English |
topic |
GC Oceanography GE Environmental Sciences Water Science and Technology Earth-Surface Processes DAS SDG 13 - Climate Action GC GE |
spellingShingle |
GC Oceanography GE Environmental Sciences Water Science and Technology Earth-Surface Processes DAS SDG 13 - Climate Action GC GE Slater, Donald A. Felikson, Denis Straneo, Fiamma Goelzer, Heiko Little, Christopher M. Morlighem, Mathieu Fettweis, Xavier Nowicki, Sophie Twenty-first century ocean forcing of the Greenland ice sheet for modelling of sea level contribution |
topic_facet |
GC Oceanography GE Environmental Sciences Water Science and Technology Earth-Surface Processes DAS SDG 13 - Climate Action GC GE |
description |
This research has been supported by the National Science Foundation, Office of Polar Programs (grant no. 1916566), the National Science Foundation, Division of Ocean Sciences (grant no. 1756272), the National Aeronautics and Space Administration (grant no. NNX17AI03G), the National Science Foundation, Office of Polar Programs (grant nos. 1513396 and 1504230), the Netherlands Earth System Science Centre (grant no. 024.002.001), the Fonds De La Recherche Scientifique – FNRS (grant no. 2.5020.11), and the FédérationWallonie-Bruxelles (grant no. 1117545). Changes in ocean temperature and salinity are expected to be an important determinant of the Greenland ice sheet's future sea level contribution. Yet, simulating the impact of these changes in continental-scale ice sheet models remains challenging due to the small scale of key physics, such as fjord circulation and plume dynamics, and poor understanding of critical processes, such as calving and submarine melting. Here we present the ocean forcing strategy for Greenland ice sheet models taking part in the Ice Sheet Model Intercomparison Project for CMIP6 (ISMIP6), the primary community effort to provide 21st century sea level projections for the Intergovernmental Panel on Climate Change Sixth Assessment Report. Beginning from global atmosphere-ocean general circulation models, we describe two complementary approaches to provide ocean boundary conditions for Greenland ice sheet models, termed the "retreat" and "submarine melt" implementations. The retreat implementation parameterises glacier retreat as a function of projected subglacial discharge and ocean thermal forcing, is designed to be implementable by all ice sheet models and results in retreat of around 1 and 15 km by 2100 in RCP2.6 and 8.5 scenarios, respectively. The submarine melt implementation provides estimated submarine melting only, leaving the ice sheet model to solve for the resulting calving and glacier retreat and suggests submarine melt rates will change little under RCP2.6 but will ... |
author2 |
University of St Andrews. School of Geography & Sustainable Development |
format |
Article in Journal/Newspaper |
author |
Slater, Donald A. Felikson, Denis Straneo, Fiamma Goelzer, Heiko Little, Christopher M. Morlighem, Mathieu Fettweis, Xavier Nowicki, Sophie |
author_facet |
Slater, Donald A. Felikson, Denis Straneo, Fiamma Goelzer, Heiko Little, Christopher M. Morlighem, Mathieu Fettweis, Xavier Nowicki, Sophie |
author_sort |
Slater, Donald A. |
title |
Twenty-first century ocean forcing of the Greenland ice sheet for modelling of sea level contribution |
title_short |
Twenty-first century ocean forcing of the Greenland ice sheet for modelling of sea level contribution |
title_full |
Twenty-first century ocean forcing of the Greenland ice sheet for modelling of sea level contribution |
title_fullStr |
Twenty-first century ocean forcing of the Greenland ice sheet for modelling of sea level contribution |
title_full_unstemmed |
Twenty-first century ocean forcing of the Greenland ice sheet for modelling of sea level contribution |
title_sort |
twenty-first century ocean forcing of the greenland ice sheet for modelling of sea level contribution |
publishDate |
2020 |
url |
http://hdl.handle.net/10023/19751 https://doi.org/10.5194/tc-14-985-2020 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice Sheet National Science Foundation Office of Polar Programs |
genre_facet |
glacier Greenland Ice Sheet National Science Foundation Office of Polar Programs |
op_relation |
Cryosphere Slater , D A , Felikson , D , Straneo , F , Goelzer , H , Little , C M , Morlighem , M , Fettweis , X & Nowicki , S 2020 , ' Twenty-first century ocean forcing of the Greenland ice sheet for modelling of sea level contribution ' , Cryosphere , vol. 14 , no. 3 , pp. 985-1008 . https://doi.org/10.5194/tc-14-985-2020 1994-0416 PURE: 267190736 PURE UUID: 085576b3-7b41-4821-b28e-30d860f715e6 Scopus: 85082039794 ORCID: /0000-0001-8394-6149/work/71560070 http://hdl.handle.net/10023/19751 https://doi.org/10.5194/tc-14-985-2020 |
op_rights |
Copyright © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License. |
op_doi |
https://doi.org/10.5194/tc-14-985-2020 |
container_title |
The Cryosphere |
container_volume |
14 |
container_issue |
3 |
container_start_page |
985 |
op_container_end_page |
1008 |
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1770271862976151552 |