WIT Press


Thermal Flow In Glaciers: Application To The Lys Glacier (Italian Western Alps)

Price

Free (open access)

Paper DOI

10.2495/HT040071

Volume

46

Pages

7

Published

2004

Size

203 kb

Author(s)

A. Deponti, L. De Biase & V. Pennati

Abstract

In the present work the thermal flow in a section of Lys Glacier, in Italian Western Alps, is investigated. This work represents the application of the model presented in De Biase and Deponti [1]. The velocity field is calculated assuming ice to be a perfectly plastic material.With this input data, the energy conservation equation is solved by the Finite Difference Method. In order to accurately model the complex geometry of the glacier section a regular but non–uniform grid has been used. General Finite Difference Formulae of second order accuracy have been used. The model has been applied to a section of Lys Glacier taking into account all the particular atmospheric conditions of the site and making two different hypotheses for the geothermal flux value at the base. 1 Introduction Middle latitude gl

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