Author(s): Yu Yan; Wei Gu; Ning Li
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Keywords: No keywords
Abstract: In this study, we used polypropylene material with a density similar to that of Bohai Sea ice as modelled ice and carried out a free drift experiment of modelled ice in the open sea. The trajectories of isolated modelled ice, currents, and wind in the Bohai Sea during non-frozen and frozen periods were obtained. The results showed that the currents played a major role while the wind played a minor role in the free drift of isolated modelled ice when the wind was mild in the Bohai Sea. The modelled ice drift was significantly affected by the ocean current and wind based on the ice–current–wind relationship established by multiple linear regression, and the modelled ice velocity calculated by multiple linear regression was close to that of the in-situ observation. The modelled ice drift characteristics were shown to be close to that of the real sea ice, which indicated that the modelled ice could be used as a good substitute of real ice for in situ observations of free ice drift in the open sea, which helped solve time availability, safety and logistics problems related to in situ observation on real ice.
Year: 2018