Implications of tde form of the flow law for vertical velocity and age–Depth profiles in polar ice

Wolff, Eric W.; Doake, C.S.M.. 1986 Implications of tde form of the flow law for vertical velocity and age–Depth profiles in polar ice. Journal of Glaciology, 32 (112). 366-370. 10.3189/S0022143000012053

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Official URL: http://dx.doi.org/10.3189/S0022143000012053

Abstract/Summary

Two situations are studied in relation to the flow law of polar ice. In each case, models are used with a flow-law exponent of one, and with the more traditional exponent of three. The horizontal velocity profile at Devon Island, Arctic Canada, is better fitted by n = 1; for the vertical velocity profile, n = 3 gives a better fit, but both model profiles fall well within experimental error. For the Camp Century age–depth profile, only n = 1 gives an acceptable fit when temperature is allowed for. The large discrepancy between isothermal and non-isothermal models for n = 3 shows the importance of allowing for temperature in studies of ice-sheet properties.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.3189/S0022143000012053
ISSN:	0022-1430
Date made live:	08 May 2019 08:17 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/523221

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.3189/S0022143000012053

ISSN:

0022-1430

Date made live:

08 May 2019 08:17 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/523221