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首页> 外文会议>International Ocean and Polar Engineering Conference;International Society of Offshore and Polar Engineers >Low-frequency catastrophic coastal disaster events around Tonga: Survey of coastal boulder distribution on Tongatapu Island and analysis using stochastic modelling of tropical cyclones
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Low-frequency catastrophic coastal disaster events around Tonga: Survey of coastal boulder distribution on Tongatapu Island and analysis using stochastic modelling of tropical cyclones

机译：汤加周围的低频灾难性沿海灾害事件：汤加塔普岛沿海巨石分布调查和热带气旋随机模拟分析

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A field survey of the coastal boulder distribution on Tongatapu Islandwas performed to obtain evidence of the old coastal disaster. Thedevelopment potential of the tropical cyclone around this area wasestimated using the stochastic tropical cyclone model. Thirty-eightboulder datasets, including boulder information not reported in previousstudies were collected. Information concerning historical tropicalcyclone data is very limited for the assessment of the low-frequencydisaster event. A stochastic model was applied to generate a 25,000-yearsimulation of the tropical cyclone. If the Haiyan-like tropical cycloneattacks the Tongatapu Island, most boulders would be transported byhigh waves. According to the result of the frequency analysis of thisstudy, this is not an entirely unlikely situation. The strong tropicalcyclone often transverses to the Southeast around the Tongatapu Island.These characteristics are in rough agreement with the fact that theboulder distribution aggregates to the northwest coast of the Tongatapu.
机译：汤田岛沿海博尔德分布的实地调查 进行了以获得旧沿海灾难的证据。这 这个地区热带气旋的发展潜力是 估计使用随机热带气旋模型。三十八 博尔德数据集，包括在以前未报告的博尔德信息 收集研究。关于历史热带的信息 Cyclone数据非常有限，可评估低频 灾难事件。应用随机模型以产生25,000年 仿真热带气旋。如果是海燕的热带气旋 攻击汤田岛，大多数巨石将被运送 高波浪。根据该频率分析的结果 研究，这不是一个完全不太可能的情况。强烈的热带 飓风经常横向汤泰布岛周围的东南部。 这些特征与粗略的协议造成粗略的协议 巨石分配汇集到汤泰湖的西北海岸。

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