Classification of Large-Scale Sea-Ice Structures Based on Remote Sensing Imagery
An analysis of satellite and aerial images of the sea-ice in the Baltic Sea was performed to trace mechanical phenomena. Characteristic structures of deformed thin-ice cover are described. Parallel faults under unidirectional tension, a concentric system of radial faults, coupled compression-tension...
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| Format: | Text |
| Language: | English |
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1998
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.522.8667 http://www.geophysica.fi/pdf/geophysica_2000_36_1-2_095_goldstein.pdf |
| Summary: | An analysis of satellite and aerial images of the sea-ice in the Baltic Sea was performed to trace mechanical phenomena. Characteristic structures of deformed thin-ice cover are described. Parallel faults under unidirectional tension, a concentric system of radial faults, coupled compression-tension structures, broom like shear structures, and vortex structures are discussed. A mathematical model for the formation of fault systems in unidirectional tension is presented based on fracture mechanics. Hydro-dynamic resistance of the water foundation serves as the arrest mechanism for crack growth. Key words: Sea ice, fracture mechanics, remote sensing, deformation 1. |
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