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...

Full description

Bibliographic Details
Main Authors: Docquier, David, Massonnet, François, Tandon, Neil F., Lecomte, Olivier, Fichefet, Thierry
Other Authors: Barcelona Supercomputing Center
Format: Article in Journal/Newspaper
Language:English
Published: European Geosciences Union (EGU) 2017
Subjects:
Online Access:http://hdl.handle.net/2117/114848
id ftupcatalunya:oai:upcommons.upc.edu:2117/114848
record_format openpolar
spelling 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