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Korean Meteorological Society (한국기상학회)
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Sensitivity Study of Simulated Sea-Ice Concentration and Thickness Using a Global Sea-Ice Model (CICE)

전구 해빙모델(CICE)을 이용한 해빙 농도와 해빙 두께 민감도 비교

  • Lee, Su-Bong (Division of Earth Environmental System, Pusan National University) ;
  • Ahn, Joong-Bae (Division of Earth Environmental System, Pusan National University)
  • 이수봉 (부산대학교 지구환경시스템학부) ;
  • 안중배 (부산대학교 지구환경시스템학부)
  • Received : 2014.10.05
  • Accepted : 2014.12.04
  • Published : 2014.12.31
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Abstract

The impacts of dynamic and thermodynamic schemes used in the Community Ice CodE (CICE), the Los Alamos sea ice model, on sea ice concentration, extent and thickness over the Arctic and Antarctic regions are evaluated. Using the six dynamic and thermodynamic schemes such as sea ice strength scheme, conductivity scheme, albedo type, advection scheme, shortwave radiation method, and sea ice thickness distribution approximation, the sensitivity experiments are conducted. It is compared with a control experiment, which is based on the fixed atmospheric and oceanic forcing. For sea ice concentration and extent, it is found that there are remarkable differences between each sensitivity experiment and the control run over the Arctic and Antarctic especially in summer. In contrast, there are little seasonal variations between the experiments for sea ice thickness. In summer, the change of the albedo type has the biggest influence on the Arctic sea ice concentration, and the Antarctic sea ice concentration has a greater sensitivity to not only the albedo type but also advection scheme. The Arctic sea ice thickness is significantly affected by the albedo type and shortwave radiation method, while the Antarctic sea ice thickness is more sensitive to sea ice strength scheme and advection scheme.

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References

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