Ice-Shelf Underwater Morphology

Abstract A side-scan sonar survey was conducted near the ice front of Riiser-Larsenisen during the 1976–77 Norwegian Antarctic Research Expedition to investigate the underwater ice-shelf morphology. The survey covered several shorter, widely-spaced sections, for a total of about 10 km along the ice...

Full description

Bibliographic Details
Published in:Journal of Glaciology
Main Author: Orheim, Olav
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1979
Subjects:
Earth-Surface Processes
Antarctic
Riiser-Larsenisen
Antarc*
Ice Shelf
Journal of Glaciology
Online Access:http://dx.doi.org/10.1017/s0022143000014969
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000014969
Description
Summary:Abstract A side-scan sonar survey was conducted near the ice front of Riiser-Larsenisen during the 1976–77 Norwegian Antarctic Research Expedition to investigate the underwater ice-shelf morphology. The survey covered several shorter, widely-spaced sections, for a total of about 10 km along the ice front. Only a smaller part of the sections showed a smooth, straight ice front. Most of the observed ice fronts were very rough at the scale of decametres. Projections at around l00 m water depth commonly extended 50–200 m seaward of the above-water ice shelf, and had widths of similar dimensions.

Similar Items