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基于地形动力学的华南海滩裂流风险研究

Keywords: 裂流,地形动力学,海滩风险,溺水事故

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Abstract:

?海滩是人们海滨旅游首选目的地,具有重要的旅游经济价值。裂流是海滨旅游的潜在威胁,已经造成了重大的生命和财产损失。本文基于ω-rtr海滩状态模型(ω为无维沉降速率参数,rtr为相对潮差)提出了海滩裂流风险评价方法,在收集华南沿海51个海滩波浪要素、潮差、泥沙粒径等地形动力要素的基础上,对海滩裂流风险进行了初步评估。结果表明福建南部岸段、粤东的汕尾岸段、粤西的阳江、茂名岸段、海南的东部岸段和南部岸段裂流风险最大。通过与遥感图像和有关的报道比较,探讨了评估结果的合理性。本文结果可为海滩浴场的选址和管理提供参考,但对具体海滩裂流风险评估还需做更多现场观测。

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