Numerical flow simulation at local parts of Filchner Ronne Ice-Shelf, Antarctica


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Klaus.Grosfeld [ at ] awi.de

Abstract

The Münster radio-echo-sounding (RES) work in the central part of Filchner-Ronne Ice Shelf has revealed new information. Different signatures are discernible in the airborne RES data. Local models in the area between Henry Ice Rise and Berkner Island are used to interpret these signatures in terms of thermal and dynamic parameters. From our airborne measurements, the shapes of the meteoric and marine ice layers were prepared as input data for dynamic- model calculations. A general increase in the temperature-dependent flow parameter is compared with a spacially variable flow parameter that is derived from model calculations concerning freezing and melting processes. Velocity and strain fields were calculated by a finite-difference method on a local data base between Henry Ice Rise and Berkner Island.



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Peer-reviewed
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Published
Eprint ID
16125
Cite as
Jonas, M. , Grosfeld, K. and Thyssen, F. (1994): Numerical flow simulation at local parts of Filchner Ronne Ice-Shelf, Antarctica , Annals of Glaciology, 20 , pp. 391-396 .


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