A modified thermodynamic sea ice model and its application
A modified thermodynamic sea ice model suitable for large-scale climate simulations is described. Originated from the Winton's three-layer model framework, this new model includes several improvements in the vertical thermodynamics: (1) the number of ice layers increases from two to three; (2)...
Published in: | Ocean Modelling |
---|---|
Other Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2022
|
Subjects: | |
Online Access: | https://doi.org/10.1016/j.ocemod.2022.102096 |
id |
ftncar:oai:drupal-site.org:articles_25839 |
---|---|
record_format |
openpolar |
spelling |
ftncar:oai:drupal-site.org:articles_25839 2023-05-15T15:06:15+02:00 A modified thermodynamic sea ice model and its application Fang, Yongjie (author) Wu, Tongwen (author) Hu, Aixue (author) Chu, Min (author) 2022-10 https://doi.org/10.1016/j.ocemod.2022.102096 en eng Ocean Modelling--Ocean Modelling--14635003 articles:25839 doi:10.1016/j.ocemod.2022.102096 ark:/85065/d7df6w28 Copyright 2022 Elsevier B.V. article Text 2022 ftncar https://doi.org/10.1016/j.ocemod.2022.102096 2022-11-21T18:48:01Z A modified thermodynamic sea ice model suitable for large-scale climate simulations is described. Originated from the Winton's three-layer model framework, this new model includes several improvements in the vertical thermodynamics: (1) the number of ice layers increases from two to three; (2) the snow heat capacity is included; (3) a vertically varying salinity profile is implemented; and (4) a temperature-and salinity-dependent heat conductivity parameterization scheme is introduced. A non-iterative fully implicit time-stepping scheme similar to Winton's model is used to calculate the temperature of ice and snow. Results from a series of one-dimensional experiments show that equilibrium ice thickness in the modified model is increased by 45 cm when compared with the original Winton's model. All modifications mentioned above contribute to this change of ice thickness, among which the increase of ice layer has the most significant effect. Experiments using the Modular Ocean Model version 4 (MOM4) coupled with the modified model show an improved sea ice simulation which includes an increase in both the sea ice volume and thickness over the entire Arctic region, confirming the above founding. However, contrary model behavior exhibits when the snow heat capacity is considered that warrants further investigation. Article in Journal/Newspaper Arctic Sea ice OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Arctic Ocean Modelling 178 102096 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
A modified thermodynamic sea ice model suitable for large-scale climate simulations is described. Originated from the Winton's three-layer model framework, this new model includes several improvements in the vertical thermodynamics: (1) the number of ice layers increases from two to three; (2) the snow heat capacity is included; (3) a vertically varying salinity profile is implemented; and (4) a temperature-and salinity-dependent heat conductivity parameterization scheme is introduced. A non-iterative fully implicit time-stepping scheme similar to Winton's model is used to calculate the temperature of ice and snow. Results from a series of one-dimensional experiments show that equilibrium ice thickness in the modified model is increased by 45 cm when compared with the original Winton's model. All modifications mentioned above contribute to this change of ice thickness, among which the increase of ice layer has the most significant effect. Experiments using the Modular Ocean Model version 4 (MOM4) coupled with the modified model show an improved sea ice simulation which includes an increase in both the sea ice volume and thickness over the entire Arctic region, confirming the above founding. However, contrary model behavior exhibits when the snow heat capacity is considered that warrants further investigation. |
author2 |
Fang, Yongjie (author) Wu, Tongwen (author) Hu, Aixue (author) Chu, Min (author) |
format |
Article in Journal/Newspaper |
title |
A modified thermodynamic sea ice model and its application |
spellingShingle |
A modified thermodynamic sea ice model and its application |
title_short |
A modified thermodynamic sea ice model and its application |
title_full |
A modified thermodynamic sea ice model and its application |
title_fullStr |
A modified thermodynamic sea ice model and its application |
title_full_unstemmed |
A modified thermodynamic sea ice model and its application |
title_sort |
modified thermodynamic sea ice model and its application |
publishDate |
2022 |
url |
https://doi.org/10.1016/j.ocemod.2022.102096 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_relation |
Ocean Modelling--Ocean Modelling--14635003 articles:25839 doi:10.1016/j.ocemod.2022.102096 ark:/85065/d7df6w28 |
op_rights |
Copyright 2022 Elsevier B.V. |
op_doi |
https://doi.org/10.1016/j.ocemod.2022.102096 |
container_title |
Ocean Modelling |
container_volume |
178 |
container_start_page |
102096 |
_version_ |
1766337901823524864 |