IcIES (Ice sheet model for Integrated Earth system Studies)

IcIES (Ice sheet model for Integrated Earth system Studies) is a three-dimensional, large-scale, dynamic/ thermodynamic ice-sheet model with shallow-ice approximation dynamics.

three-dimensionallarge-scaledynamic/ thermodynamicice-sheet

true

Contributor(s)

Initial contribute: 2019-10-13

Authorship

:  
Center for Climate System Research, The University of Tokyo; Japan Agency fopr Marine–Earth Science and Technology, Frontier Research Center for Global Change
:  
saitofuyuki@jamstec.go.jp
:  
Center for Climate System Research, The University of Tokyo
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Classification(s)

Application-focused categoriesNatural-perspectiveFrozen regions

Detailed Description

English {{currentDetailLanguage}} English

Quoted from: Greve, R., Saito, F., & Abe-Ouchi, A. (2011). Initial results of the SeaRISE numerical experiments with the models SICOPOLIS and IcIES for the Greenland ice sheet. Annals of Glaciology, 52(58), 23-30. doi:10.3189/172756411797252068

Similar to SICOPOLIS, the model IcIES (Ice sheet model for Integrated Earth system Studies; Saito and Abe-Ouchi, 20052010) is a three-dimensional, large-scale, dynamic/ thermodynamic ice-sheet model with shallow-ice approximation dynamics. The main differences compared to SICOPOLIS are:

Cold ice mode is employed (i.e. The Stefan-type conditions at the cold/temperate transition surface are ignored, computed temperatures above pressure melting are reset to pressure melting with no computation of the englacial water content).

Isostasy: Local-lithosphere–relaxing-asthenosphere (LLRA) approach.

Basal sliding: Different parameters for the Weertman-type sliding law (Equation (1)), namely C b = 1.61 × 10-6 ma-1 Pa-2p = 3, q = 1 and γ→0˚C (no sub-melt sliding; instead an abrupt switch between warm-based sliding and cold-based no-slip) (Huybrechts and de Wolde, 1999).

Present geometry derived from the ‘Greenland Standard Data Set’ (Greenland_5km_v1.1.nc; this affects only the immediate vicinity of Jacobshavn Isbræ).

Discretization of the vertical direction by sigma coordinates. Ice column: 26 gridpoints (concentrated towards the base); thermal lithosphere: 17 equidistant gridpoints.

Adaptive time-step, with a maximum value of 0.125 years.

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Fuyuki Saito , Ayako Abe-Ouchi (2019). IcIES (Ice sheet model for Integrated Earth system Studies), Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/3345452a-06ed-4036-9485-013fe80e1eca
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History

Last modifier
zhangshuo
Last modify time
2021-01-11
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Contributor(s)

Initial contribute : 2019-10-13

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Authorship

:  
Center for Climate System Research, The University of Tokyo; Japan Agency fopr Marine–Earth Science and Technology, Frontier Research Center for Global Change
:  
saitofuyuki@jamstec.go.jp
:  
Center for Climate System Research, The University of Tokyo
Is authorship not correct? Feed back

History

Last modifier
zhangshuo
Last modify time
2021-01-11
Modify times
View History

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