极地研究

极地研究 ›› 2008, Vol. 19 ›› Issue (1-English): 23-35.

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GLIMMER Antarctic Ice Sheet Model, an experimental research of moving boundary condition

 Tang Xueyuan1, Sun Bo1, Zhang Zhanhai1, Li Yuansheng1 and Yang Qinghua2   

  1. 1 Polar Research Institute of China, Shanghai 200136, China;
    2 National Research Center for Marine Environmental Forecasts, Beijing 100081, China
  • 出版日期:1958-03-30 发布日期:1958-03-30
  • 通讯作者: Tang Xueyuan

GLIMMER Antarctic Ice Sheet Model,an experimental research of moving boundary condition

 Tang Xueyuan1, Sun Bo1, Zhang Zhanhai1, Li Yuansheng1 and Yang Qinghua2   

  1. 1 Polar Research Institute of China, Shanghai 200136, China;
    2 National Research Center for Marine Environmental Forecasts, Beijing 100081, China
  • Online:1958-03-30 Published:1958-03-30
  • Contact: Tang Xueyuan

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摘要：

A 3-D coupled ice sheet model, GLIMMER model is introduced,and an idealized ice sheet experiment under the EISMINT-1 criterion of moving boundary condition is presented. The results of the experiment reveal that for a steady-state ice sheet profile the characteristic curves describe the process of evolution which are accordant with theoretical estimates. By solving the coupled thermodynamics equations of ice sheet, one may find the characteristic curves which derived from the conservation of the mass, energy and momentum to the ice flow profile. At the same time,an agreement, approximate to the GLIMMER case and the confirmed theoretical results, is found. Present study is explorihg work to introduce and discuss the handicaps of EISMINT criterion and GLIMMER,and prospect a few directions of the GLIMMER model.

关键词: Antarctic ice sheet, GLIMMER model, EISMINT, Numcrical simulation

Abstract:

A 3-D coupled ice sheet model, GLIMMER model is introduced,and an idealized ice sheet experiment under the EISMINT-1 criterion of moving boundary condition is presented. The results of the experiment reveal that for a steady-state ice sheet profile the characteristic curves describe the process of evolution which are accordant with theoretical estimates. By solving the coupled thermodynamics equations of ice sheet, one may find the characteristic curves which derived from the conservation of the mass, energy and momentum to the ice flow profile. At the same time,an agreement, approximate to the GLIMMER case and the confirmed theoretical results, is found. Present study is explorihg work to introduce and discuss the handicaps of EISMINT criterion and GLIMMER,and prospect a few directions of the GLIMMER model.

Key words: Antarctic ice sheet, GLIMMER model, EISMINT, Numcrical simulation