海洋预报2023，Vol.40Issue(6)：12-20,9.DOI:10.11737/j.issn.1003-0239.2023.06.002
台风"米娜"影响下的杭州湾风暴潮特征及对咸潮的影响
The characteristics of storm surge under the influence of Typhoon"Mitag"and its effect on salt-tide intrusion in Hangzhou Bay
摘要
Abstract
Based on the observations during Typhoon"Mitag"in 2019,numerical simulation of typhoon storm surge around Hangzhou Bay has been carried out by using the ADCIRC model,to analyze the storm surge process and its characteristics in Hangzhou Bay,as well as its influence on the salt-tide intrusion of the Qiantang River.The results show that:The mean absolute errors of the simulated astronomical tide at Luchao Port,Tanxu,Daishan and Shenjiamen tide stations are 22 cm,19 cm,10 cm and 14 cm,respectively.The absolute errors of maximum storm surge are 6 cm,1 cm,6 cm and 7 cm,respectively.The storm surge in Hangzhou Bay is stronger than that of the outside islands during the typhoon.The maximum storm surge at Tanxu station is 111 cm,and that at Shenjiamen station is 74 cm.The non-linear interaction between astronomical tide and storm surge increases gradually from Zhoushan offshore to Hangzhou Bay.When the storm surge reaches its maximum,the non-linear interaction at each station are 24 cm,26 cm,14 cm and 4 cm,respectively.The salt-tide intrusion of Qiantang River mainly depends on runoff and tidal intensity,storm surge aggravates the salt-tide intrusion,and the salt-tide intrude the Qiantang River during Typhoon"Mitag",causing the chlorinity exceeding the limit of 41 hours at the Nanxing Water Plant.It is necessary to predict the influence of storm surge on salt-tide intrusion during typhoon and to make scientific countermeasures.关键词
杭州湾/风暴潮/1918号台风"米娜"/非线性作用/咸潮Key words
Hangzhou Bay/storm surge/Typhoon"Mitag"(1918)/non-linear interaction/salt-tide intrusion分类
海洋科学引用本文复制引用
左常圣,黄清泽,潘嵩,任兴元..台风"米娜"影响下的杭州湾风暴潮特征及对咸潮的影响[J].海洋预报,2023,40(6):12-20,9.基金项目
国家重点研发计划(2017YFA0604902). （2017YFA0604902）
