An Excel™ spreadsheet program for reconstructing the surface profile of former mountain glaciers and ice caps

被引：144

作者：

Benn, Douglas I. ^{[1
,2
]}

Hulton, Nicholas R. J. ^{[3
]}

机构：

[1] Univ Ctr Svalbard, N-9171 Longyearbyen, Norway

[2] Univ St Andrews, Sch Geog & Geosci, St Andrews KY16 9AL, Fife, Scotland

[3] Univ Edinburgh, Sch Geosci, Edinburgh EH9 3JW, Midlothian, Scotland

来源：

COMPUTERS & GEOSCIENCES | 2010年 / 36卷 / 05期

关键词：

Glacier reconstruction; Ice sheet surface; Shape factor; EQUILIBRIUM-LINE ALTITUDES; BALANCE; CLIMATE; NORWAY;

D O I：

10.1016/j.cageo.2009.09.016

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A new Excel (TM) spreadsheet program is introduced, which calculates the surface profiles of former glaciers using an exact solution of a 'perfectly plastic' glacier model. Two versions of the model are presented. The basic model requires only bed topography along a flowline and a yield stress for ice as inputs. The latter can be tuned using 'target ice elevations' derived from geomorphological mapping. A more sophisticated form of the model allows the yield stress to vary along the flowline, and incorporates the effect of valley-side drag on the glacier profile. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：605 / 610

页数：6

共 14 条

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