A comparison of two Stokes ice sheet models applied to the Marine Ice Sheet Model Intercomparison Project for plan view models (MISMIP3d)
We present a comparison of the numerics and simulation results for two "full" Stokes ice sheet models, FELIX-S (Leng et al. 2012) and Elmer/Ice (Gagliardini et al. 2013). The models are applied to the Marine Ice Sheet Model Intercomparison Project for plan view models (MISMIP3d). For the d...
Published in: | The Cryosphere |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2017
|
Subjects: | |
Online Access: | https://doi.org/10.5194/tc-11-179-2017 https://noa.gwlb.de/receive/cop_mods_00010511 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00010468/tc-11-179-2017.pdf https://tc.copernicus.org/articles/11/179/2017/tc-11-179-2017.pdf |
id |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00010511 |
---|---|
record_format |
openpolar |
spelling |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00010511 2023-05-15T16:40:15+02:00 A comparison of two Stokes ice sheet models applied to the Marine Ice Sheet Model Intercomparison Project for plan view models (MISMIP3d) Zhang, Tong Price, Stephen Ju, Lili Leng, Wei Brondex, Julien Durand, Gaël Gagliardini, Olivier 2017-01 electronic https://doi.org/10.5194/tc-11-179-2017 https://noa.gwlb.de/receive/cop_mods_00010511 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00010468/tc-11-179-2017.pdf https://tc.copernicus.org/articles/11/179/2017/tc-11-179-2017.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-11-179-2017 https://noa.gwlb.de/receive/cop_mods_00010511 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00010468/tc-11-179-2017.pdf https://tc.copernicus.org/articles/11/179/2017/tc-11-179-2017.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2017 ftnonlinearchiv https://doi.org/10.5194/tc-11-179-2017 2022-02-08T22:57:00Z We present a comparison of the numerics and simulation results for two "full" Stokes ice sheet models, FELIX-S (Leng et al. 2012) and Elmer/Ice (Gagliardini et al. 2013). The models are applied to the Marine Ice Sheet Model Intercomparison Project for plan view models (MISMIP3d). For the diagnostic experiment (P75D) the two models give similar results ( < 2 % difference with respect to along-flow velocities) when using identical geometries and computational meshes, which we interpret as an indication of inherent consistencies and similarities between the two models. For the standard (Stnd), P75S, and P75R prognostic experiments, we find that FELIX-S (Elmer/Ice) grounding lines are relatively more retreated (advanced), results that are consistent with minor differences observed in the diagnostic experiment results and that we show to be due to different choices in the implementation of basal boundary conditions in the two models. While we are not able to argue for the relative favorability of either implementation, we do show that these differences decrease with increasing horizontal (i.e., both along- and across-flow) grid resolution and that grounding-line positions for FELIX-S and Elmer/Ice converge to within the estimated truncation error for Elmer/Ice. Stokes model solutions are often treated as an accuracy metric in model intercomparison experiments, but computational cost may not always allow for the use of model resolution within the regime of asymptotic convergence. In this case, we propose that an alternative estimate for the uncertainty in the grounding-line position is the span of grounding-line positions predicted by multiple Stokes models. Article in Journal/Newspaper Ice Sheet The Cryosphere Niedersächsisches Online-Archiv NOA The Cryosphere 11 1 179 190 |
institution |
Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Zhang, Tong Price, Stephen Ju, Lili Leng, Wei Brondex, Julien Durand, Gaël Gagliardini, Olivier A comparison of two Stokes ice sheet models applied to the Marine Ice Sheet Model Intercomparison Project for plan view models (MISMIP3d) |
topic_facet |
article Verlagsveröffentlichung |
description |
We present a comparison of the numerics and simulation results for two "full" Stokes ice sheet models, FELIX-S (Leng et al. 2012) and Elmer/Ice (Gagliardini et al. 2013). The models are applied to the Marine Ice Sheet Model Intercomparison Project for plan view models (MISMIP3d). For the diagnostic experiment (P75D) the two models give similar results ( < 2 % difference with respect to along-flow velocities) when using identical geometries and computational meshes, which we interpret as an indication of inherent consistencies and similarities between the two models. For the standard (Stnd), P75S, and P75R prognostic experiments, we find that FELIX-S (Elmer/Ice) grounding lines are relatively more retreated (advanced), results that are consistent with minor differences observed in the diagnostic experiment results and that we show to be due to different choices in the implementation of basal boundary conditions in the two models. While we are not able to argue for the relative favorability of either implementation, we do show that these differences decrease with increasing horizontal (i.e., both along- and across-flow) grid resolution and that grounding-line positions for FELIX-S and Elmer/Ice converge to within the estimated truncation error for Elmer/Ice. Stokes model solutions are often treated as an accuracy metric in model intercomparison experiments, but computational cost may not always allow for the use of model resolution within the regime of asymptotic convergence. In this case, we propose that an alternative estimate for the uncertainty in the grounding-line position is the span of grounding-line positions predicted by multiple Stokes models. |
format |
Article in Journal/Newspaper |
author |
Zhang, Tong Price, Stephen Ju, Lili Leng, Wei Brondex, Julien Durand, Gaël Gagliardini, Olivier |
author_facet |
Zhang, Tong Price, Stephen Ju, Lili Leng, Wei Brondex, Julien Durand, Gaël Gagliardini, Olivier |
author_sort |
Zhang, Tong |
title |
A comparison of two Stokes ice sheet models applied to the Marine Ice Sheet Model Intercomparison Project for plan view models (MISMIP3d) |
title_short |
A comparison of two Stokes ice sheet models applied to the Marine Ice Sheet Model Intercomparison Project for plan view models (MISMIP3d) |
title_full |
A comparison of two Stokes ice sheet models applied to the Marine Ice Sheet Model Intercomparison Project for plan view models (MISMIP3d) |
title_fullStr |
A comparison of two Stokes ice sheet models applied to the Marine Ice Sheet Model Intercomparison Project for plan view models (MISMIP3d) |
title_full_unstemmed |
A comparison of two Stokes ice sheet models applied to the Marine Ice Sheet Model Intercomparison Project for plan view models (MISMIP3d) |
title_sort |
comparison of two stokes ice sheet models applied to the marine ice sheet model intercomparison project for plan view models (mismip3d) |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/tc-11-179-2017 https://noa.gwlb.de/receive/cop_mods_00010511 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00010468/tc-11-179-2017.pdf https://tc.copernicus.org/articles/11/179/2017/tc-11-179-2017.pdf |
genre |
Ice Sheet The Cryosphere |
genre_facet |
Ice Sheet The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-11-179-2017 https://noa.gwlb.de/receive/cop_mods_00010511 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00010468/tc-11-179-2017.pdf https://tc.copernicus.org/articles/11/179/2017/tc-11-179-2017.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-11-179-2017 |
container_title |
The Cryosphere |
container_volume |
11 |
container_issue |
1 |
container_start_page |
179 |
op_container_end_page |
190 |
_version_ |
1766030634378067968 |