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...
| Published in: | Computers & Geosciences |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
2010
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| Subjects: | |
| 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 |
| 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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