基于高、低潮位的西江感潮河段潮汐特征分析  

Analysis of the tidal characteristics along the tidal reach of Xijiang River based on high and low tide levels

作　　者：武家兴 彭棋 张卓[1,2,3] 陈欣颖 陈鹏[1,2,3] 温亚娟 王浩丞[1,2,3] 张璐 WU Jiaxing;PENG Qi;ZHANG Zhuo;CHEN Xinying;CHEN Peng;WEN Yajuan;WANG Haocheng;ZHANG Lu(Key Laboratory of Virtual Geographic Environment,MOE,Nanjing Normal University,Nanjing 210023,China;Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application,Nanjing 210023,China;Key Laboratory of Coastal Disaster and Defence,MOE,Hohai University,Nanjing 210023,China)

机构地区：[1]南京师范大学虚拟地理环境教育部重点实验室,江苏南京210023 [2]江苏省地理信息资源开发与利用协同创新中心,江苏南京210023 [3]河海大学海岸灾害及防护教育部重点实验室,江苏南京210023

出　　处：《海洋学研究》2024年第2期91-103,共13页Journal of Marine Sciences

基　　金：海岸灾害及防护教育部重点实验室(河海大学)开放研究基金面上项目(202218);国家自然科学基金项目(42171465)。

摘　　要：通过对高、低潮位数据插值和NS_TIDE模型应用,分析西江感潮河段(马口—大横琴)的潮汐特征。对比三种插值方法发现,相对于三次样条插值法和线性插值法,Hermite插值法对逐时潮位的模拟效果最佳。潮位验证结果显示NS_TIDE模型总体误差较低,异常值主要是源自台风和洪水的影响。西江感潮河段平均水位和分潮振幅存在洪、枯季差异,上游受径流的影响大于潮汐,下游则相反;径流量和潮差增大,促进上游河段平均水位增高,对分潮振幅和迟角的影响在不同河段表现不同,主要与其所处空间位置和分潮自身频率有关。By interpolation of high and low tide data and application of NS_TIDE model,the tidal characteristics of the tidal reach of Xijiang River(Makou-Dahengqin)were analyzed.Compared with cubic spline interpolation and linear interpolation,it is found that Hermite interpolation is the best method to simulate the hourly tide level.The verification results of tide level show that the overall error of NS_TIDE model is low,and the outliers mainly come from the influence of typhoon and flood.The mean water level and the amplitude of tidal component in the tidal reach of Xijiang River are different in wet and dry season.The influence of runoff in the upper reaches is greater than that of the tides,and the opposite is true in the lower reaches.With the increase of runoff and tidal difference,the mean water level of the upper reaches increases,and the influence on the amplitude and the phase of tidal component is different in different section,which is related to the spatial location and the frequency of the tidal component.

关 键 词：高、低潮插值 调和分析 河流径流 海洋潮汐 

分 类 号：P731.23[天文地球—海洋科学]