原楠,陈新平,陈学恩,陈金瑞.罗源湾海域台风风暴潮数值模拟研究[J].海洋通报,2019,(1):20-30
罗源湾海域台风风暴潮数值模拟研究
Numerical simulation of typhoon storm surge at the Luoyuan Bay
投稿时间:2018-01-05  修订日期:2018-03-27
DOI:10.11840/j.issn.1001-6392.2019.01.004
中文关键词:  罗源湾  台风  风暴潮  海洋防灾减灾
英文关键词:Luoyuan Bay  typhoon  storm surge  marine disaster prevention and mitigation
基金项目:国家重点研发计划 (2016YFC1401300);泰山学者项目 (2016YFC1401300);国家自然科学基金 (41506042)
作者单位E-mail
原楠 中国海洋大学 海洋与大气学院山东 青岛 266100 yuan_nan_ouc@126.com 
陈新平 自然资源部海洋减灾中心北京 100194 xinp.chen@foxmail.com 
陈学恩 中国海洋大学 海洋与大气学院山东 青岛 266100  
陈金瑞 福建省海洋预报台福建 福州 350003  
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中文摘要:
      本文以福建罗源湾海域为重点研究区域,结合台风风暴潮数值模式,对不同强度、不同方向台风引起的风暴潮增(减) 水规律进行了数值模拟研究。通过对影响罗源湾海域的历史台风分析,确定了影响该区域的两种典型台风路径,即东南-西北移动 (NW-SE) 和南-北移动 (N-S) 路径。文中结果表明:在两种典型路径台风到达罗源湾海域时,罗源湾内的风暴增水达到极值,在超强台风 (中心气压及最大风速:945 hPa,55 km/h) 作用下,NW-SE 和 N-S 路径下增水极值分别为3.9 m 和 3.67 m。随着两种典型台风路径从湾外向湾内平移,湾内不同岸段的风暴增水表现出不同的规律:北岸和西岸增水逐渐增大且在典型台风路径过湾顶向西平移约 15 km 处达到最大;湾内南岸区域增水逐渐减小且在台风路径过湾口向湾外平移约 15 km 处达到最大;湾口站点增水极值随路径平移无明显变化。对于 N-S 典型路径方向,台风中心过罗源湾后有明显减水现象,且越靠近湾内的站点减水程度越大,超强台风作用下湾内西北角站点减水达 2.80m,而 NW-SE 路径的台风风暴减水现象不明显。
英文摘要:
      This paper simulated the different intensities and directions of typhoon storm surges at the Luoyuan Bay based on the numerical model. Through analyzing typhoons in history, the paper determines two kinds of typical typhoon paths having an impact on the region, namely Southeast-Northwest (NW-SE) and the South-North (N-S) path. The results show that the storm surge reaches its peak when the typical typhoons arrive at the Luoyuan Bay. And for typical path NW-SE/N-S on the influence of super typhoon, central pressure of which is 945 hPa and maximum wind speed is 55 km/h, and this maximum value is 3.9 m/3.67 m, respectively. With typical path moving from outside to inside of the Luoyuan Bay, the storm surge shows different rules on different locations. The surging of northern and western shore increases gradually and peaks when typhoon passes the top of the bay and moves towards west about 15 kilometers. The surging of southern shore decreases gradually and peaks when typhoon passes the mouth of the bay and then translates to the outside of the bay about 15 kilometers. The surging extremum at the bay mouth has no obvious change with path translation. For the N-S path, reduction is obvious when typhoon center pass over the bay. The reduction in the northwestern corner reaches 2.8 m due to the impact of super typhoon, while for NW-SE path, the reduction is not obvious.
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