基于FVCOM的温州近海潮汐潮流数值模拟  

Numerical Simulation of Tide and Tidal Currents in the Wenzhou Offshore Based on FVCOM

作　　者：岳云飞[1] 王永刚[2,3] 何善方 汪一航[1] 魏泽勋[2,3] 

机构地区：[1]宁波大学理学院,浙江宁波315211 [2]国家海洋局第一海洋研究所,山东青岛266061 [3]国家海洋局海洋环境科学与数值模拟重点实验室,山东青岛266061 [4]国家海洋局宁波海洋环境监测中心站,浙江宁波315012

出　　处：《海洋科学进展》2015年第2期142-154,共13页Advances in Marine Science

基　　金：浙江省海洋与渔业局项目--温州沿海产业带围填海(工程)海洋环境影响评价(ZHYWZ201202)

摘　　要：基于有限体积法海洋数值模型（FVCOM）,构建了温州近海潮汐潮流数值模式,模式模拟区域为（120°24′00″-121°19′12″E,27°21′00″-28°24′00″N）,模式水平分辨率由近岸河口区的50m,逐渐增加至开边界附近的2km。模式模拟并分析了温州近海的M2,S2,N2,K1,O1五个主要分潮。利用温州近海实测资料对模拟结果进行了验证,模拟与实测符合良好;其中与4个验潮站资料比较,M2,S2,N2,K1,O1五个主要分潮的振幅绝均差和迟角绝均差分别为4.84cm和5.14°,2.19cm和3.35°,5.18cm和4.38°,0.64cm和3.67°,0.59cm和4.61°;与9个海流连续观测站比较,流速绝均差为11.71cm/s,流向绝均差为9.66°。在模拟结果较好地反映温州近海潮汐、潮流运动状况的基础上,本文给出了各模拟分潮的潮汐同潮图和潮流椭圆分布、潮汐和潮流类型分布以及最大可能潮流分布等。Based on the finite-volume coastal ocean numerical model （FVCOM）, a tidal model is established for the Wenzhou offshore. The computational domain covers （120°24′00＂-121°19′12＂E,27°21′00＂-28°24′ 00＂N）. The horizontal resolution is 50 m at the near shore and increase to 2 km gradually. Five principal tidal constituents, M2, S2, N2, K1 and O1, are simulated and analyzed. The model results are compared with observation, showing a satisfactory agreement. Comparing with 4 tidal gauge stations, the mean absolute difference in amplitude and phase-lag are respectively 4.84 cm and 5.14° for M2, 2.19 cm and 3.35° forS2, 5.18 cmand4.38° for N2, 0.64 cmand 3.67° for K1 and0.59 cm and 4.61° for O1. Comparing with 9 currents observation stations, the mean absolute difference in speed is 11.71 cm/s and the mean absolute difference in direction is 9.66°. Based on model outputs, the distributions of co-tidal charts, tidal current ellipses, tide and tidal current types, and the maximum possible tidal current, are given.

关 键 词：FVCOM 温州近海 潮汐 潮流 

分 类 号：P731.2[天文地球—海洋科学]