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A comparison between three-dimensional, transient, thermomechanically coupled first-order and Stokes ice flow models

文献类型：期刊论文

作者Yan, Zhan1; Leng, Wei2; Wang, Yuzhe3; Xiao, Cunde1; Zhang, Tong1
刊名JOURNAL OF GLACIOLOGY
出版日期2022-10-03
页码12
关键词Glacier modeling glacier flow glaciological model experiments ice-sheet modeling ice dynamics
ISSN号0022-1430
DOI10.1017/jog.2022.77
英文摘要In this study, we investigate the differences between two transient, three-dimensional, thermomechanically coupled ice-sheet models, namely, a first-order approximation model (FOM) and a 'full' Stokes ice-sheet model (FSM) under the same numerical framework. For all numerical experiments, we take the FSM outputs as the reference values and calculate the mean relative errors in the velocity and temperature fields for the FOM over 100 years. Four different boundary conditions (ice slope, geothermal heat flux, basal topography and basal sliding) are tested, and by changing these parameters, we verify the thermomechanical behavior of the FOM and discover that the velocity and temperature biases of the FOM generally increase with increases in the ice slope, geothermal heat flux, undulation amplitude of the ice base, and with the existence of basal sliding. In addition, the model difference between the FOM and FSM may accumulate over time, and the spatial distribution patterns of the relative velocity and temperature errors are in good agreement.
资助项目National Key Research and Development Program of China[2018YFC1406104] ; State Key Laboratory of Earth Surface Processes and Resource Ecology[2021-TS-06] ; State Key Laboratory of Earth Surface Processes and Resource Ecology[2021-KF-06] ; State Key Laboratory of Earth Surface Processes and Resource Ecology[2022-ZD-05] ; Fundamental Research Funds for the Central Universities[2021NTST16]
WOS研究方向Physical Geography ; Geology
语种英语
WOS记录号WOS:000863531200001
出版者CAMBRIDGE UNIV PRESS
源URL[http://ir.amss.ac.cn/handle/2S8OKBNM/60844]  
专题中国科学院数学与系统科学研究院
通讯作者Yan, Zhan
作者单位1.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China
2.Chinese Acad Sci, State Key Lab Sci & Engn Comp, Beijing 100190, Peoples R China
3.Shandong Normal Univ, Coll Geog & Environm, Jinan 250014, Peoples R China
推荐引用方式
GB/T 7714		 Yan, Zhan,Leng, Wei,Wang, Yuzhe,et al. A comparison between three-dimensional, transient, thermomechanically coupled first-order and Stokes ice flow models[J]. JOURNAL OF GLACIOLOGY,2022:12.
APA Yan, Zhan,Leng, Wei,Wang, Yuzhe,Xiao, Cunde,&Zhang, Tong.(2022).A comparison between three-dimensional, transient, thermomechanically coupled first-order and Stokes ice flow models.JOURNAL OF GLACIOLOGY,12.
MLA Yan, Zhan,et al."A comparison between three-dimensional, transient, thermomechanically coupled first-order and Stokes ice flow models".JOURNAL OF GLACIOLOGY (2022):12.

入库方式： OAI收割

来源：数学与系统科学研究院

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