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Observation of Sea Ice Drift Characteristics with Marine Radar Images on an Offshore Platform in the Bohai Sea
| 题名： | Observation of Sea Ice Drift Characteristics with Marine Radar Images on an Offshore Platform in the Bohai Sea |
| 正文语种： | eng |
| 作者： | Xue Long;Xiaodong Chen;Anliang Wang;Yu Liu;Shunying Ji |
| 作者单位： | Naval Architecture and Ocean Engineering College Dalian Maritime Univ. Dalian 116026 China;State Key Laboratory of Structural Analysis for Industrial Equipment Dalian Univ. of Technology Dalian 116024 China;National Marine Environmental Forecasting Center Beijing 100081 China;National Marine Environmental Forecasting Center Beijing 100081 China;State Key Laboratory of Structural Analysis for Industrial Equipment Dalian Univ. of Technology Dalian 116024 China |
| 关键词： | Sea ice drift; Digital image processing; Marine radar system; Ice velocity; Weibull distribution |
| 摘要： | Radar images can be employed to examine features of the ice surface and to determine ice drift. In the winter of 2012-2013, sea ice drift in the Bohai Sea was monitored using a marine radar system installed on an offshore platform in Liaodong Bay. Radar images were continuously captured across the 57-day ice season and processed to determine ice surface features and drift. The correlation between ice velocity and current and wind velocity is analyzed using a statistical approach. The results indicate that ice speed in the Bohai Sea mainly varies between 0.3 and 0.8 m/s, with a maximum value of 1.8 m/s. There was a dominating direction of 60° clockwise from the North, with the Coriolis force causing a 20° difference in drift direction. The probability distribution function shows that both sea ice and wind velocities follow the typical Weibull distribution. |
| 出版年： | 2021 |
| 期刊名称： | Journal of Waterway, Port, Coastal and Ocean Engineering |
| 卷： | 147 |
| 期： | 4 |
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