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A Framework for Ice Sheet – Ocean Coupling (FISOC) V1.1

Authors: Rupert Gladstone; Benjamin Galton-Fenzi; David Gwyther; Qin Zhou; Tore Hattermann; Chen Zhao; Lenneke Jong; +6 Authors

A Framework for Ice Sheet – Ocean Coupling (FISOC) V1.1

Abstract

Abstract. 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 melt water 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 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 run time 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 online 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 multiple methods for coupling the sub ice shelf cavity geometry. Thermodynamic coupling may also be activated. We present idealised 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 idealised coupled ice – ocean system, both with and without grounding line movement.

44 references, page 1 of 5

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    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    1
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
hybrid
Funded by
AKA| The impact of Antarctic Ice Sheet - Southern Ocean interactions on marine ice sheet stability and ocean circulation/ Consortium: COLD, ARC| Special Research Initiatives - Grant ID: SR140300001
Project
  • Funder: Australian Research Council (ARC) (ARC)
  • Project Code: SR140300001
  • Funding stream: Special Research Initiative (Antarctic) ; Special Research Initiatives
sysimport:actionset
,
AKA| Simulating Antarctic marine ice sheet stability and multi-century contributions to sea level rise
Project
  • Funder: Academy of Finland (AKA)
  • Project Code: 286587
sysimport:actionset
,
EC| CRAG
Project
CRAG
A coupled ice sheet - ocean model for calibrated prediction of the future contribution to sea level change from the Pine Island Glacier, Antarctica
  • Funder: European Commission (EC)
  • Project Code: 299035
  • Funding stream: FP7 | SP3 | PEOPLE
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European Marine Science
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