Relationships between Arctic sea ice drift and strength modelled by NEMO-LIM3.6
Sea ice cover and thickness have substantially decreased in the Arctic Ocean since the beginning of the satellite era. As a result, sea ice strength has been reduced, allowing more deformation and fracturing and leading to increased sea ice drift speed. We use the version 3.6 of the global ocean–sea...
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ftupcatalunya:oai:upcommons.upc.edu:2117/114848 2023-05-15T14:55:42+02:00 Relationships between Arctic sea ice drift and strength modelled by NEMO-LIM3.6 Docquier, David Massonnet, François Tandon, Neil F. Lecomte, Olivier Fichefet, Thierry Barcelona Supercomputing Center 2017-12-11 19 p. http://hdl.handle.net/2117/114848 eng eng European Geosciences Union (EGU) https://www.the-cryosphere.net/11/2829/2017/tc-11-2829-2017.html info:eu-repo/grantAgreement/EC/H2020/641727/EU/PRocess-based climate sIMulation: AdVances in high resolution modelling and European climate Risk Assessment/PRIMAVERA Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Open Access CC-BY-NC-ND Àrees temàtiques de la UPC::Energies Sea ice Computer simulation Sea ice cover NEMO-LIM3.6 Previsió del temps Glaç sec Article 2017 ftupcatalunya 2019-09-29T09:20:29Z Sea ice cover and thickness have substantially decreased in the Arctic Ocean since the beginning of the satellite era. As a result, sea ice strength has been reduced, allowing more deformation and fracturing and leading to increased sea ice drift speed. We use the version 3.6 of the global ocean–sea ice NEMO-LIM model (Nucleus for European Modelling of the Ocean coupled to the Louvain-la-Neuve sea Ice Model), satellite, buoy and submarine observations, as well as reanalysis data over the period from 1979 to 2013 to study these relationships. Overall, the model agrees well with observations in terms of sea ice extent, concentration and thickness. The seasonal cycle of sea ice drift speed is reasonably well reproduced by the model. NEMO-LIM3.6 is able to capture the relationships between the seasonal cycles of sea ice drift speed, concentration and thickness, with higher drift speed for both lower concentration and lower thickness, in agreement with observations. Model experiments are carried out to test the sensitivity of Arctic sea ice drift speed, thickness and concentration to changes in sea ice strength parameter P*. These show that higher values of P* generally lead to lower sea ice deformation and lower sea ice thickness, and that no single value of P* is the best option for reproducing the observed drift speed and thickness. The methodology proposed in this analysis provides a benchmark for a further model intercomparison related to the relationships between sea ice drift speed and strength, which is especially relevant in the context of the upcoming Coupled Model Intercomparison Project 6 (CMIP6). Peer Reviewed Postprint (published version) Article in Journal/Newspaper Arctic Arctic Ocean Sea ice Universitat Politècnica de Catalunya (UPC): Theses and Dissertations Online (TDX) Arctic Arctic Ocean |
institution |
Open Polar |
collection |
Universitat Politècnica de Catalunya (UPC): Theses and Dissertations Online (TDX) |
op_collection_id |
ftupcatalunya |
language |
English |
topic |
Àrees temàtiques de la UPC::Energies Sea ice Computer simulation Sea ice cover NEMO-LIM3.6 Previsió del temps Glaç sec |
spellingShingle |
Àrees temàtiques de la UPC::Energies Sea ice Computer simulation Sea ice cover NEMO-LIM3.6 Previsió del temps Glaç sec Docquier, David Massonnet, François Tandon, Neil F. Lecomte, Olivier Fichefet, Thierry Relationships between Arctic sea ice drift and strength modelled by NEMO-LIM3.6 |
topic_facet |
Àrees temàtiques de la UPC::Energies Sea ice Computer simulation Sea ice cover NEMO-LIM3.6 Previsió del temps Glaç sec |
description |
Sea ice cover and thickness have substantially decreased in the Arctic Ocean since the beginning of the satellite era. As a result, sea ice strength has been reduced, allowing more deformation and fracturing and leading to increased sea ice drift speed. We use the version 3.6 of the global ocean–sea ice NEMO-LIM model (Nucleus for European Modelling of the Ocean coupled to the Louvain-la-Neuve sea Ice Model), satellite, buoy and submarine observations, as well as reanalysis data over the period from 1979 to 2013 to study these relationships. Overall, the model agrees well with observations in terms of sea ice extent, concentration and thickness. The seasonal cycle of sea ice drift speed is reasonably well reproduced by the model. NEMO-LIM3.6 is able to capture the relationships between the seasonal cycles of sea ice drift speed, concentration and thickness, with higher drift speed for both lower concentration and lower thickness, in agreement with observations. Model experiments are carried out to test the sensitivity of Arctic sea ice drift speed, thickness and concentration to changes in sea ice strength parameter P*. These show that higher values of P* generally lead to lower sea ice deformation and lower sea ice thickness, and that no single value of P* is the best option for reproducing the observed drift speed and thickness. The methodology proposed in this analysis provides a benchmark for a further model intercomparison related to the relationships between sea ice drift speed and strength, which is especially relevant in the context of the upcoming Coupled Model Intercomparison Project 6 (CMIP6). Peer Reviewed Postprint (published version) |
author2 |
Barcelona Supercomputing Center |
format |
Article in Journal/Newspaper |
author |
Docquier, David Massonnet, François Tandon, Neil F. Lecomte, Olivier Fichefet, Thierry |
author_facet |
Docquier, David Massonnet, François Tandon, Neil F. Lecomte, Olivier Fichefet, Thierry |
author_sort |
Docquier, David |
title |
Relationships between Arctic sea ice drift and strength modelled by NEMO-LIM3.6 |
title_short |
Relationships between Arctic sea ice drift and strength modelled by NEMO-LIM3.6 |
title_full |
Relationships between Arctic sea ice drift and strength modelled by NEMO-LIM3.6 |
title_fullStr |
Relationships between Arctic sea ice drift and strength modelled by NEMO-LIM3.6 |
title_full_unstemmed |
Relationships between Arctic sea ice drift and strength modelled by NEMO-LIM3.6 |
title_sort |
relationships between arctic sea ice drift and strength modelled by nemo-lim3.6 |
publisher |
European Geosciences Union (EGU) |
publishDate |
2017 |
url |
http://hdl.handle.net/2117/114848 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Sea ice |
genre_facet |
Arctic Arctic Ocean Sea ice |
op_relation |
https://www.the-cryosphere.net/11/2829/2017/tc-11-2829-2017.html info:eu-repo/grantAgreement/EC/H2020/641727/EU/PRocess-based climate sIMulation: AdVances in high resolution modelling and European climate Risk Assessment/PRIMAVERA |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Open Access |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766327727919464448 |