摘要
本文统计分析了广西涠洲岛沿海气候、潮汐和风暴潮等历史资料,利用耿贝尔方法推算了涠洲岛多年一遇年极值高潮位,并估算了其漫滩范围分布,指出近几年高潮位出现的频次和极值均越来越高是涠洲岛西南部沙滩侵蚀愈加严重的重要原因,最后结合风暴潮-海浪耦合数值模拟了研究区域内"0312"号台风风暴潮漫滩的情况,分析了风暴潮和大潮对涠洲岛西南部沙滩侵蚀的影响,对当地岸滩修复和防护具有一定的指导意义。
In this paper, various history datum, such as meteorological data, tidal data, and storm surge data, etc, are collected and analyzed. Highest tidal levels of multiyear return periods are calculated using the Gumbel curve meth- od, and the related inundation areas are also showed. It is revealed that the worsening beach erosion of the south- western Weizhou Island is mainly due to the frequently occurrence of the extreme high tide in recent years. In addi- tion,a coupled storm surge-wave numerical model is used to present the inundation process by storm surge during the 0312 typhoon. Impacts of storm surge and spring tide on the beach erosion is analyzed and elaborated,which is of certain directive significance to the local beach restoration and protection.
出处
《海洋学报》
CAS
CSCD
北大核心
2015年第9期126-137,共12页
基金
海洋公益性行业科研专项经费项目--沿海重点保障区域精细化综合预报系统研制与应用(201305031)
广西北海涠洲岛整治修复项目--北海市涠洲岛西南海域岸滩侵蚀研究
关键词
风暴潮
大潮
沙滩侵蚀
耿贝尔方法
数值模拟
storm surge
spring tide
beach erosion
Gumbel curve method
numerical simulation
