基于FVCOM的渤、黄海潮汐潮流数值模拟  

Numerical simulation of the tides and tidal currents in the Bohai and Yellow seas based on FVCOM

作　　者：袁帅 袁鹏[1,2] 司先才 谭俊哲[1,2] 王树杰 刘小栋[1] YUAN Shuai;YUAN Peng;SI Xiancai;TAN Junzhe;WANG Shujie;LIU Xiaodong(College of Engineering,Ocean University of China,Qingdao266100,China;Ocean Engineering Key Lab of Qingdao,Qingdao266100,China)

机构地区：[1]中国海洋大学工程学院,山东青岛266100 [2]青岛市海洋可再生能源重点实验室,山东青岛266100

出　　处：《海洋湖沼通报》2020年第2期10-18,共9页Transactions of Oceanology and Limnology

基　　金：国家自然基金(51479185);山东省自然科学基金重大基础研究项目(ZR2017ZA0202)资助。

摘　　要：本文基于FVCOM海洋模式,采用高分辨率非结构三角形网格,构建了渤、黄海区域的数值模型,对该海域M2,S2,N2,K2,K1,O1,P1和Q1八个主要分潮进行数值模拟。考虑实际岸线和水深情况,模型采用干湿网格可以较好模拟出沿岸的潮汐潮流。通过沿岸20个验潮站实测调和常数资料对模拟结果进行验证,M2、S2、K1、O1分潮振幅绝对平均偏差分别为4.57cm、4.62cm、3.84cm、4.86cm,迟角绝对平均偏差分别为6.78°、4.60°、3.81°、6.02°,计算值与观测值较为接近;表层潮流椭圆分布基本反映了渤、黄海海域的潮流特性,其中M2分潮潮流最大流速在朝鲜半岛西北部海区可以超过190cm/s。A three-dimensional hydrodynamics model in the Bohai and Yellow Seas was established by FVCOM, using unstructured triangle grid with high resolution, to simulate the eight major tidal constituents of M2、S2、N2、K2、K1、O1、P1 and Q1., Compared with the tidal harmonic constants at 20 gauging stations along the coast, all simulated results showed good agreement with the measured data considering the coastline and topography. The mean absolute deviations of the tidal constituents of M2、S2、K1 and O1 in the amplitude were 4.57 cm、4.62 cm、3.84 cm and 4.86 cm, respectively;those in the phase were 6.78°、4.60°、3.81° and 6.02°, respectively. Simulation results showed that the distribution of the tidal current ellipse could basically reflect the characteristics of tidal currents in Bohai sea and Yellow sea, and the maximum velocity of tidal constituent of M2 could exceed 190 cm/s in the water area northwestern to the Korean Peninsula.

关 键 词：数值模拟 渤、黄海 潮波系统 FVCOM 

分 类 号：P7[天文地球—海洋科学]