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

• Main Authors: Xueyuan, Tang, Bo, Sun, Zhanhai, Zhang, Yuansheng, Li, Qinghua, Yang
• Format: Article in Journal/Newspaper
• Language: English
• Published: Polar Research Institute of China - PRIC 2008
• Subjects: Cryosphere; Antarctic; Advances in Polar Science; Antarc*; Ice Sheet; Polar Science
• Online Access: http://library.arcticportal.org/2345/; http://library.arcticportal.org/2345/1/A200801004.pdf

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 exploring work to introduce and discuss the handicaps of EISMINT criterion and GLIMMER, and prospect a few directions of the GLIMMER model.