The Effect of Longitudinal Stress on the Shear Stress at the Base of an Ice Sheet-Reference-Cited by-同舟云学术

The Effect of Longitudinal Stress on the Shear Stress at the Base of an Ice Sheet

Published:1969 Issue:53 Volume:8 Page:207-213
ISSN:0022-1430
Container-title:Journal of Glaciology
language:en
Short-container-title:J. Glaciol.

Author:

Nye J. F.

Abstract

Robin (1967) and Budd (1968, unpublished) have succeeded in connecting the variations in surface slope of an ice sheet with variations in the gradient of the longitudinal strain-rate. This paper tries to improve the theoretical basis of their work. By choice of a suitable coordinate system and suitable redefinition of the variables, Budd’s formula for the basal shear stress is derived with a minimum of restrictive assumptions. The resulting formula, containing the gradient of a longitudinal stress, is thought to be of high accuracy for the two-dimensional flow of cold ice sheets, and is valid for slopes of any magnitude.

Publisher

Cambridge University Press (CUP)

Subject

Earth-Surface Processes

Reference6 articles.

1. Surface Topography of Ice Sheets

2. Joint Meeting of the British Glaciological Society, the British Rheologists’ Club and the Institute of Metals

3. On The Use of the Equilibrium Equations and Flow Law in Relating the Surface and Bed Topography of Glaciers and Ice Sheets

4. A Method of Calculating the Thicknesses of the Ice-Sheets

5. A Comparison Between the Theoretical and the Measured Long Profile of the Unteraar Glacier

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