DOI: 10.5194/tc-11-1685-2017
Scopus记录号: 2-s2.0-85025132737
论文题名: Reply to "basal buoyancy and fast-moving glaciers: In defense of analytic force balance" by C. J. van der Veen (2016)
作者: Hughes T ; J
刊名: Cryosphere
ISSN: 19940416
出版年: 2017
卷: 11, 期: 4 起始页码: 1685
结束页码: 1689
语种: 英语
英文关键词: elevation
; force
; geometry
; glacier dynamics
; glacier mass balance
; ice flow
; ice sheet
; ice thickness
; Navier-Stokes equations
; numerical method
英文摘要: Two approaches to ice-sheet modeling are available. Analytical modeling is the traditional approach (Van der Veen, 2016). It solves the force (momentum), mass, and energy balances to obtain three-dimensional solutions over time, beginning with the Navier-Stokes equations for the force balance. Geometrical modeling employs simple geometry to solve the force and mass balance in one dimension along ice flow (Hughes, 2012a). It is useful primarily to provide the first-order physical basis of ice-sheet modeling for students with little background in mathematics. The geometric approach uses changes in ice-bed coupling along flow to calculate changes in ice elevation and thickness, using a floating fraction φ along a flow line or flow band, where φ D 0 for sheet flow, 0 < φ < 1 for stream flow, and φ D 1 for shelf flow. An attempt is made to reconcile the two approaches. © Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75527
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
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作者单位: Climate Change Institute and School of Earth, Climate Sciences University of Maine, 404 North Sixth Street, Fort Pierre, SD, United States
Recommended Citation:
Hughes T,J. Reply to "basal buoyancy and fast-moving glaciers: In defense of analytic force balance" by C. J. van der Veen (2016)[J]. Cryosphere,2017-01-01,11(4)