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

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 st...

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Bibliographic Details
Published in:Computers & Geosciences
Main Authors: Benn, Douglas I., Hulton, Nicholas R. J.
Format: Article in Journal/Newspaper
Language:English
Published: 2010
Subjects:
Glacier reconstruction
Ice sheet surface
Shape factor
EQUILIBRIUM-LINE ALTITUDES
BALANCE
CLIMATE
NORWAY
Norway
glacier
Ice Sheet
Online Access:https://research-portal.st-andrews.ac.uk/en/researchoutput/an-excel-tm-spreadsheet-program-for-reconstructing-the-surface-profile-of-former-mountain-glaciers-and-ice-caps(52ea5318-5fc6-476c-b09d-ae13a10791e7).html
https://doi.org/10.1016/j.cageo.2009.09.016
Description
Summary: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.

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