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首页> 外文会议>International Association of Institutes of Navigation 15th World Congress 2015 >Grasp of a latent risk of ship evacuation during a tsunami using AIS data analysis
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Grasp of a latent risk of ship evacuation during a tsunami using AIS data analysis

机译：使用AIS数据分析掌握海啸期间船舶撤离的潜在风险

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摘要

A massive earthquake occurred in the Tohoku and Kanto regions of Japan on the 11th of March 2011. In response, a tsunami alert, a tsunami warning and an advisory were issued for the entire Pacific coast region. This research investigates the evacuation behavior of ships by AIS data in Sendai port after the tsunami warning was issued. The unusual behavior observed was attributed to the emergency evacuation of ships. We recognize the actual situation of ship refuge in the target port after the Tsunami alert. The result verified that most ships in port started to evacuate approximately 20 minutes after the major tsunami warning and completed offshore evacuation 50 minutes after this warning. Moreover, the drifting or stranding state of ships resulting from the tsunami was recognized from each ship's behaviour. This contributed in understanding the actual status of the ship refuge action, and the final goal of our research is creation of the optimal safe refuge manual for each harbour.
机译：2011年3月11日，日本东北部和关东地区发生了大地震。作为回应，针对整个太平洋沿岸地区发布了海啸预警，海啸预警和咨询。本研究利用海啸预警发出后，利用仙台港AIS数据对船舶的疏散行为进行了研究。观察到的异常行为归因于船舶的紧急疏散。海啸警报发生后，我们认识到目标港口避难的实际情况。结果证实，大部分港口在发生重大海啸警告后约20分钟开始撤离，并在警告后50分钟完成了海上疏散。此外，从海啸的行为可以识别出海啸造成的船舶的漂移或搁浅状态。这有助于了解避难行动的实际状态，我们研究的最终目标是为每个港口创建最佳的安全避难手册。

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