The Framework For Ice Sheet–Ocean Coupling (FISOC) V1.1

<p>A number of important questions concern processes at the margins of ice sheets where multiple components of the Earth system, most crucially ice sheets and oceans, interact. Such processes include thermodynamic interaction at the ice–ocean interface, the impact of meltwater on ice shelf cav...

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Main Authors: R. Gladstone, B. Galton-Fenzi, D. Gwyther, Q. Zhou, T. Hattermann, C. Zhao, L. Jong, Y. Xia, X. Guo, K. Petrakopoulos, T. Zwinger, D. Shapero, J. Moore
Format: Article
Language:English
Published: Copernicus Publications 2021-02-01
Series:Geoscientific Model Development
Online Access:https://gmd.copernicus.org/articles/14/889/2021/gmd-14-889-2021.pdf
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author R. Gladstone
B. Galton-Fenzi
B. Galton-Fenzi
D. Gwyther
Q. Zhou
T. Hattermann
T. Hattermann
C. Zhao
L. Jong
Y. Xia
X. Guo
K. Petrakopoulos
T. Zwinger
D. Shapero
J. Moore
J. Moore
author_facet R. Gladstone
B. Galton-Fenzi
B. Galton-Fenzi
D. Gwyther
Q. Zhou
T. Hattermann
T. Hattermann
C. Zhao
L. Jong
Y. Xia
X. Guo
K. Petrakopoulos
T. Zwinger
D. Shapero
J. Moore
J. Moore
author_sort R. Gladstone
collection DOAJ
description <p>A number of important questions concern processes at the margins of ice sheets where multiple components of the Earth system, most crucially ice sheets and oceans, interact. Such processes include thermodynamic interaction at the ice–ocean interface, the impact of meltwater on ice shelf cavity circulation, the impact of basal melting of ice shelves on grounded ice dynamics and ocean controls on iceberg calving. These include fundamentally coupled processes in which feedback mechanisms between ice and ocean play an important role. Some of these mechanisms have major implications for humanity, most notably the impact of retreating marine ice sheets on the global sea level. In order to better quantify these mechanisms using computer models, feedbacks need to be incorporated into the modelling system. To achieve this, ocean and ice dynamic models must be coupled, allowing runtime information sharing between components. We have developed a flexible coupling framework based on existing Earth system coupling technologies. The open-source Framework for Ice Sheet–Ocean Coupling (FISOC) provides a modular approach to coupling, facilitating switching between different ice dynamic and ocean components. FISOC allows fully synchronous coupling, in which both ice and ocean run on the same time step, or semi-synchronous coupling in which the ice dynamic model uses a longer time step. Multiple regridding options are available, and there are multiple methods for coupling the sub-ice-shelf cavity geometry. Thermodynamic coupling may also be activated. We present idealized simulations using FISOC with a Stokes flow ice dynamic model coupled to a regional ocean model. We demonstrate the modularity of FISOC by switching between two different regional ocean models and presenting outputs for both. We demonstrate conservation of mass and other verification steps during evolution of an idealized coupled ice–ocean system, both with and without grounding line movement.</p>
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spelling doaj.art-bed6bfeceb1c4abe8f973c32a792e1a32022-12-21T23:15:39ZengCopernicus PublicationsGeoscientific Model Development1991-959X1991-96032021-02-011488990510.5194/gmd-14-889-2021The Framework For Ice Sheet–Ocean Coupling (FISOC) V1.1R. Gladstone0B. Galton-Fenzi1B. Galton-Fenzi2D. Gwyther3Q. Zhou4T. Hattermann5T. Hattermann6C. Zhao7L. Jong8Y. Xia9X. Guo10K. Petrakopoulos11T. Zwinger12D. Shapero13J. Moore14J. Moore15Arctic Centre, University of Lapland, Rovaniemi, FinlandAustralian Antarctic Division, Kingston, Tasmania, AustraliaAustralian Antarctic Program Partnership, Institute of Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, AustraliaAustralian Antarctic Program Partnership, Institute of Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, AustraliaAkvaplan-niva AS, Tromsø, NorwayNorwegian Polar Institute, Tromsø, NorwayEnergy and Climate Group, Department of Physics and Technology, University of Tromsø – The Arctic University, Tromsø, NorwayAustralian Antarctic Program Partnership, Institute of Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, AustraliaAustralian Antarctic Division, Kingston, Tasmania, AustraliaCollege of Global Change and Earth System Science, Beijing Normal University, Beijing, ChinaCollege of Global Change and Earth System Science, Beijing Normal University, Beijing, ChinaCenter for Global Sea Level Change, New York University Abu Dhabi, United Arab EmiratesCSC IT Center for Science, Espoo, FinlandPolar Science Center, Applied Physics Laboratory, University of Washington, Seattle, USAArctic Centre, University of Lapland, Rovaniemi, FinlandCollege of Global Change and Earth System Science, Beijing Normal University, Beijing, China<p>A number of important questions concern processes at the margins of ice sheets where multiple components of the Earth system, most crucially ice sheets and oceans, interact. Such processes include thermodynamic interaction at the ice–ocean interface, the impact of meltwater on ice shelf cavity circulation, the impact of basal melting of ice shelves on grounded ice dynamics and ocean controls on iceberg calving. These include fundamentally coupled processes in which feedback mechanisms between ice and ocean play an important role. Some of these mechanisms have major implications for humanity, most notably the impact of retreating marine ice sheets on the global sea level. In order to better quantify these mechanisms using computer models, feedbacks need to be incorporated into the modelling system. To achieve this, ocean and ice dynamic models must be coupled, allowing runtime information sharing between components. We have developed a flexible coupling framework based on existing Earth system coupling technologies. The open-source Framework for Ice Sheet–Ocean Coupling (FISOC) provides a modular approach to coupling, facilitating switching between different ice dynamic and ocean components. FISOC allows fully synchronous coupling, in which both ice and ocean run on the same time step, or semi-synchronous coupling in which the ice dynamic model uses a longer time step. Multiple regridding options are available, and there are multiple methods for coupling the sub-ice-shelf cavity geometry. Thermodynamic coupling may also be activated. We present idealized simulations using FISOC with a Stokes flow ice dynamic model coupled to a regional ocean model. We demonstrate the modularity of FISOC by switching between two different regional ocean models and presenting outputs for both. We demonstrate conservation of mass and other verification steps during evolution of an idealized coupled ice–ocean system, both with and without grounding line movement.</p>https://gmd.copernicus.org/articles/14/889/2021/gmd-14-889-2021.pdf
spellingShingle R. Gladstone
B. Galton-Fenzi
B. Galton-Fenzi
D. Gwyther
Q. Zhou
T. Hattermann
T. Hattermann
C. Zhao
L. Jong
Y. Xia
X. Guo
K. Petrakopoulos
T. Zwinger
D. Shapero
J. Moore
J. Moore
The Framework For Ice Sheet–Ocean Coupling (FISOC) V1.1
Geoscientific Model Development
title The Framework For Ice Sheet–Ocean Coupling (FISOC) V1.1
title_full The Framework For Ice Sheet–Ocean Coupling (FISOC) V1.1
title_fullStr The Framework For Ice Sheet–Ocean Coupling (FISOC) V1.1
title_full_unstemmed The Framework For Ice Sheet–Ocean Coupling (FISOC) V1.1
title_short The Framework For Ice Sheet–Ocean Coupling (FISOC) V1.1
title_sort framework for ice sheet ocean coupling fisoc v1 1
url https://gmd.copernicus.org/articles/14/889/2021/gmd-14-889-2021.pdf
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