ON FORMATION OF TIDAL FRONTS IN COASTAL SEAS

作     者：Wang Xiao-huaDepartment of Geography and Oceanography, University College, Australian Defence ForceAcademy, Canberra ACT 2600, Australia, Email :h-wang @ adfa.oz. auM. L. HeronPhysics Department, James Cook University Townsville, Q 4811, AustraliaChen WeiThe Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012,P. R. China Wang Xiao-huaDepartment of Geography and Oceanography, University College, Australian Defence ForceAcademy, Canberra ACT 2600, Australia, Email :h-wang @ adfa.oz. auM. L. HeronPhysics Department, James Cook University Townsville, Q 4811, AustraliaChen WeiThe Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012,P. R. China

作者机构：Australian Defence Force Acad Canberra Australia 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：1998年第10卷第3期

页      面：17-28页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

基　　金：This is supported by the National Natural Science Fundation of China 

主　　题：tidal fronts coastal sea 

摘      要：An energy equation which includes the effects of potential energy, turbulent dissipation, heat flux and density flux due to fresh water discharge from estuaries is derived to evaluate the formation of frontal structures in coastal seas. Two different forms of tidal mixing criteria emerge which are the h/u3 of Simpson and Hunter (1974) for openshallow water and the h/u of Nunes et al (1989) for estuaries. The theory is capable ofpredicting tidal fronts in areas where both surface and lateral input of buoyancy are significant. The theory is applied to a tidal estuary and the locations of haline fronts which result from the influence of the fresh water discharge are predicted. The effect of surface heating on the formation and location of the frontal system is also discussed for the estuary.