2986 JOURNAL OF PHYSICAL OCEANOGRAPHY VOLUME 31 A Thickness and Enthalpy Distribution Sea-Ice Model
The theory of sea ice thickness distribution developed by Thorndike et al. has been extended to include sea ice enthalpy distribution. The extended theory conserves both ice mass and thermal energy, in the form of the heat stored in the ice, by jointly solving a thickness-distribution equation and a...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.362.7634 2023-05-15T18:16:20+02:00 2986 JOURNAL OF PHYSICAL OCEANOGRAPHY VOLUME 31 A Thickness and Enthalpy Distribution Sea-Ice Model Jinlun Zhang Drew Rothrock The Pennsylvania State University CiteSeerX Archives 2000 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.362.7634 http://psc.apl.washington.edu/zhang/IDAO/enthalpy.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.362.7634 http://psc.apl.washington.edu/zhang/IDAO/enthalpy.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://psc.apl.washington.edu/zhang/IDAO/enthalpy.pdf text 2000 ftciteseerx 2016-01-08T00:54:36Z The theory of sea ice thickness distribution developed by Thorndike et al. has been extended to include sea ice enthalpy distribution. The extended theory conserves both ice mass and thermal energy, in the form of the heat stored in the ice, by jointly solving a thickness-distribution equation and an enthalpy-distribution equation. Both equations have been implemented in a one-dimensional dynamic thermodynamic sea-ice model with 12 ice thickness categories following the numerical procedure of Hibler. The implementation of the enthalpydistribution equation allows the sea-ice model to account for any changes in the ice thermal energy induced by sea ice processes. As a result, the model is able to conserve not only the ice mass but also its thermal energy in the presence of ice advection, growth, melting, and ridging. Conserving ice thermal energy in a thicknessdistribution sea ice model improves the prediction of ice growth, summer ice melt in particular, and therefore ice thickness. Inability to conserve the thermal energy by not implementing the enthalpy-distribution equation, compounded with an effect of the surface albedo feedback, causes the model to underestimate ice thickness by up to 11 % under various conditions of thermal and mechanical forcing. This indicates the importance of conserving energy in numerical investigations of climate. 1. Text Sea ice Unknown |
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English |
description |
The theory of sea ice thickness distribution developed by Thorndike et al. has been extended to include sea ice enthalpy distribution. The extended theory conserves both ice mass and thermal energy, in the form of the heat stored in the ice, by jointly solving a thickness-distribution equation and an enthalpy-distribution equation. Both equations have been implemented in a one-dimensional dynamic thermodynamic sea-ice model with 12 ice thickness categories following the numerical procedure of Hibler. The implementation of the enthalpydistribution equation allows the sea-ice model to account for any changes in the ice thermal energy induced by sea ice processes. As a result, the model is able to conserve not only the ice mass but also its thermal energy in the presence of ice advection, growth, melting, and ridging. Conserving ice thermal energy in a thicknessdistribution sea ice model improves the prediction of ice growth, summer ice melt in particular, and therefore ice thickness. Inability to conserve the thermal energy by not implementing the enthalpy-distribution equation, compounded with an effect of the surface albedo feedback, causes the model to underestimate ice thickness by up to 11 % under various conditions of thermal and mechanical forcing. This indicates the importance of conserving energy in numerical investigations of climate. 1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Jinlun Zhang Drew Rothrock |
spellingShingle |
Jinlun Zhang Drew Rothrock 2986 JOURNAL OF PHYSICAL OCEANOGRAPHY VOLUME 31 A Thickness and Enthalpy Distribution Sea-Ice Model |
author_facet |
Jinlun Zhang Drew Rothrock |
author_sort |
Jinlun Zhang |
title |
2986 JOURNAL OF PHYSICAL OCEANOGRAPHY VOLUME 31 A Thickness and Enthalpy Distribution Sea-Ice Model |
title_short |
2986 JOURNAL OF PHYSICAL OCEANOGRAPHY VOLUME 31 A Thickness and Enthalpy Distribution Sea-Ice Model |
title_full |
2986 JOURNAL OF PHYSICAL OCEANOGRAPHY VOLUME 31 A Thickness and Enthalpy Distribution Sea-Ice Model |
title_fullStr |
2986 JOURNAL OF PHYSICAL OCEANOGRAPHY VOLUME 31 A Thickness and Enthalpy Distribution Sea-Ice Model |
title_full_unstemmed |
2986 JOURNAL OF PHYSICAL OCEANOGRAPHY VOLUME 31 A Thickness and Enthalpy Distribution Sea-Ice Model |
title_sort |
2986 journal of physical oceanography volume 31 a thickness and enthalpy distribution sea-ice model |
publishDate |
2000 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.362.7634 http://psc.apl.washington.edu/zhang/IDAO/enthalpy.pdf |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
http://psc.apl.washington.edu/zhang/IDAO/enthalpy.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.362.7634 http://psc.apl.washington.edu/zhang/IDAO/enthalpy.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766189879045128192 |