Antarctic ice sheet GLIMMER model test and its simplified model on 2-dimensional ice flow

作     者：Xueyuan Tang a,,Zhanhai Zhang a,Bo Sun a,Yuansheng Li a,Na Li a,Bangbing Wang a,b,Xiangpei Zhang a,b a Polar Research Institute of China,Shanghai 200136,China b College of Geo-exploration Science and Technology,Jilin University,Changchun 130026,China 

作者机构：Polar Research Institute of China Shanghai 200136 China College of Geo-exploration Science and Technology Jilin University Changchun 130026 China 

出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))

年 卷 期：2008年第18卷第2期

页      面：173-180页

核心收录：

学科分类：07[理学] 0705[理学-地理学] 070501[理学-自然地理学] 

基　　金：2007219 2005DIB3J114 JDQ200602 National Natural Science Foundation of China,NSFC: 40233032,40476005 

主　　题：Antarctic ice sheet GLIMMER model Numerical simulation 2-Dimensional ice flow 

摘      要：The 3-dimensional finite difference thermodynamic coupled model on Antarctic ice sheet,GLIMMER model,is described. An ide-alized ice sheet numerical test was conducted under the EISMINT-1 benchmark,and the characteristic curves of ice sheets under steady state were obtained. Based on this,this model was simplified from a 3-dimensional one to 2-dimensional one. Improvement of the dif-ference method and coordinate system was proposed. Evolution of the 2-dimensional ice flow was simulated under coupled temperature field conditions. The results showed that the characteristic curves deriving from the conservation of the mass,momentum and energy agree with the results of ice sheet profile simulated with GLIMMER model and with the theoretical results. The application prospect of the simplified 2-dimensional ice flow model to simulate the relation of age-depth-accumulation in Dome A region was discussed.