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...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.展开更多
基金the National Natural Science Fundation of China.
文摘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.
