Antarctic tabular icebergs in ocean waves ...
The thesis presents a detailed account of our existing knowledge of Antarctic tabular icebergs and their development. Data from in situ field experiments and automatic stations placed on the surface of icebergs are presented and analysed. The data comprise information on the sea state, iceberg geome...
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| Format: | Thesis |
| Language: | English |
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Apollo - University of Cambridge Repository
1983
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| Online Access: | https://dx.doi.org/10.17863/cam.39795 https://www.repository.cam.ac.uk/handle/1810/292639 |
| Summary: | The thesis presents a detailed account of our existing knowledge of Antarctic tabular icebergs and their development. Data from in situ field experiments and automatic stations placed on the surface of icebergs are presented and analysed. The data comprise information on the sea state, iceberg geometry, structure and other features, rigid body motions and surface strains. We show that tabular icebergs respond to ocean waves of medium (15-30 s) and long (>30 s) periods, but that they act as filters to very short (<10 s) period waves. A two-dimensional, linear model of rigid body motions, including hydrodynamical effects of added mass and damping and the forcing from the ocean waves, is presented. Good correspondence with the field data is generally obtained, but the causes of long period rigld body motion response of tabular icebergs, especially in roll, cannot be fully explained by a linear, two-dimensional model. We present evidence for substantial bending of the bergs in response to resonance periods ... |
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