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...
Published in: | Journal of Glaciology |
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Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
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Cambridge University Press (CUP)
1979
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Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s0022143000014969 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000014969 |
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. |
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