摘要
基于MIKE3软件建立了磨刀门水道三维潮流盐度数学模型,采用实测资料对其进行率定和验证,并开展了北风作用下磨刀门咸潮上溯的数值计算。根据计算结果,结合盐通量分解方法,分析北风对磨刀门咸潮上溯的影响机制。结果表明:北风风力的大小直接影响磨刀门水道盐分输运途径,风力较小时,磨刀门水道分汊口以上的盐分主要来自于横洲水道,而洪湾水道则表现为磨刀门主干往外海排盐的通道;但在强北风作用下,洪湾水道成了磨刀门水道盐分的主要来源。
This paper establishes a three-dimensional mathematical salinity model for tide in the Modaomen Channel based on MIKE3 software,validates and calibrates the model by the measured data,conducts the numerical calculation of saltwater intrusion in the Modaomen Channel under north wind.and analyzes the effect of north wind on saltwater intrusion in the Modaomen Channel according to the simulation results and the theory of salt flux decomposition.The results show that the strength of north wind directly affect the salt transport pathway in Modaomen Channel.When the north wind is light,the salt above the branch port of the Modaomen Channel mainly comes from the Hengzhou Channel,and the Hongwan Channel serves for salt elimination by Main Modaomen Channel to other waters.However,under the action of strong north wind,the salt in the Modaomen Channel mainly comes from the Hongwan Channel.
作者
高晨晨
才多
GAO Chenchen;CAI Duo(Shanghai Water Engineering Design and Research Institute Co.,Ltd.,Shanghai 200061,China;Shanghai Engineering Research Center of Coastal Zones,Shanghai 200061,China)
出处
《人民珠江》
2020年第2期12-20,共9页
Pearl River
关键词
咸潮上溯
北风
盐通量分解
数值模拟
磨刀门河口
saltwater intrusion
north wind
salt flux decomposition
numerical simulation
Modaomen estuary
