A TWO-DIMENSIONAL NUMERICAL MODEL OF THE TIDAL MOTIONS IN THE BOHAI SEA

作     者：Fang Guohong (Institute of Oceanology, Academia Sinica)andYang Jingfei {Institute of Marine Scientific and Technological Information, State Oceanic Administration) 

作者机构：1. Institute of Oceanology Academia Sinica Qingdao China 

出 版 物：《Journal of Oceanology and Limnology》 (海洋湖沼学报(英文))

年 卷 期：1985年第3卷第2期

页      面：135-152页

学科分类：07[理学] 0707[理学-海洋科学] 

主　　题：KI 

摘      要：The motions of diurnal, semidiurnal, and shallow-water tides and tidal currents in the Bohai Sea are computed using a finite-difference method based on two-dimensional tidal wave equations. Good agreement of the computed results with the observed data is achieved for diurnal and semidiurnal tides. The general pattern of the computed quarterdiurnal tide conforms to the observed pattern, but the computed amplitudes are on the high side. This is attributed to the ineligibility of the friction terms in the two-dimensional governing equations to dissipate the energy of high frequency tidal waves. It is found that the existing semidiurnal cotidal charts have considerable differences in Laizhou Bay. The difference is likely caused by the movement of the coastline of the Yellow River Delta. The present result coincides with the recent empirical cotidal chart. The computation shows a new current-amphidromic point for both semidiurnal and diurnal tidal currents. The diurnal current has two current-amphidromic poi