Simulation and Domain Identification of Sea Ice Thermodynamic System
Based on the measured data and characteristics of sea ice temperature distribution in space and time, this study is intended to consider a parabolic partial differential equation of the thermodynamic field of sea ice (coupled by snow, ice, and sea water layers) with a time-dependent domain and its p...
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ftdoajarticles:oai:doaj.org/article:40ff527d6b4b49cf9501a013504e1388 2024-09-15T18:34:09+00:00 Simulation and Domain Identification of Sea Ice Thermodynamic System Bing Tan Peng Lu Zhijun Li Enmin Feng Juan Wang 2012-01-01T00:00:00Z https://doi.org/10.1155/2012/532870 https://doaj.org/article/40ff527d6b4b49cf9501a013504e1388 EN eng Wiley http://dx.doi.org/10.1155/2012/532870 https://doaj.org/toc/1110-757X https://doaj.org/toc/1687-0042 1110-757X 1687-0042 doi:10.1155/2012/532870 https://doaj.org/article/40ff527d6b4b49cf9501a013504e1388 Journal of Applied Mathematics, Vol 2012 (2012) Mathematics QA1-939 article 2012 ftdoajarticles https://doi.org/10.1155/2012/532870 2024-08-05T17:48:42Z Based on the measured data and characteristics of sea ice temperature distribution in space and time, this study is intended to consider a parabolic partial differential equation of the thermodynamic field of sea ice (coupled by snow, ice, and sea water layers) with a time-dependent domain and its parameter identification problem. An optimal model with state constraints is presented with the thicknesses of snow and sea ice as parametric variables and the deviation between the calculated and measured sea ice temperatures as the performance criterion. The unique existence of the weak solution of the thermodynamic system is proved. The properties of the identification problem and the existence of the optimal parameter are discussed, and the one-order necessary condition is derived. Finally, based on the nonoverlapping domain decomposition method and semi-implicit difference scheme, an optimization algorithm is proposed for the numerical simulation. Results show that the simulated temperature of sea ice fit well with the measured data, and the better fit is corresponding to the deeper sea ice. Article in Journal/Newspaper Sea ice Directory of Open Access Journals: DOAJ Articles Journal of Applied Mathematics 2012 1 16 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Mathematics QA1-939 |
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Mathematics QA1-939 Bing Tan Peng Lu Zhijun Li Enmin Feng Juan Wang Simulation and Domain Identification of Sea Ice Thermodynamic System |
topic_facet |
Mathematics QA1-939 |
description |
Based on the measured data and characteristics of sea ice temperature distribution in space and time, this study is intended to consider a parabolic partial differential equation of the thermodynamic field of sea ice (coupled by snow, ice, and sea water layers) with a time-dependent domain and its parameter identification problem. An optimal model with state constraints is presented with the thicknesses of snow and sea ice as parametric variables and the deviation between the calculated and measured sea ice temperatures as the performance criterion. The unique existence of the weak solution of the thermodynamic system is proved. The properties of the identification problem and the existence of the optimal parameter are discussed, and the one-order necessary condition is derived. Finally, based on the nonoverlapping domain decomposition method and semi-implicit difference scheme, an optimization algorithm is proposed for the numerical simulation. Results show that the simulated temperature of sea ice fit well with the measured data, and the better fit is corresponding to the deeper sea ice. |
format |
Article in Journal/Newspaper |
author |
Bing Tan Peng Lu Zhijun Li Enmin Feng Juan Wang |
author_facet |
Bing Tan Peng Lu Zhijun Li Enmin Feng Juan Wang |
author_sort |
Bing Tan |
title |
Simulation and Domain Identification of Sea Ice Thermodynamic System |
title_short |
Simulation and Domain Identification of Sea Ice Thermodynamic System |
title_full |
Simulation and Domain Identification of Sea Ice Thermodynamic System |
title_fullStr |
Simulation and Domain Identification of Sea Ice Thermodynamic System |
title_full_unstemmed |
Simulation and Domain Identification of Sea Ice Thermodynamic System |
title_sort |
simulation and domain identification of sea ice thermodynamic system |
publisher |
Wiley |
publishDate |
2012 |
url |
https://doi.org/10.1155/2012/532870 https://doaj.org/article/40ff527d6b4b49cf9501a013504e1388 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Journal of Applied Mathematics, Vol 2012 (2012) |
op_relation |
http://dx.doi.org/10.1155/2012/532870 https://doaj.org/toc/1110-757X https://doaj.org/toc/1687-0042 1110-757X 1687-0042 doi:10.1155/2012/532870 https://doaj.org/article/40ff527d6b4b49cf9501a013504e1388 |
op_doi |
https://doi.org/10.1155/2012/532870 |
container_title |
Journal of Applied Mathematics |
container_volume |
2012 |
container_start_page |
1 |
op_container_end_page |
16 |
_version_ |
1810475879696957440 |