Both tidal mixing and wind stirring can weaken the vertical stratification induced by freshwater buoyancy , but different mechanisms dominate such a process : tidal mixing is accomplished through the upward dissipation of turbulent kinetic energy whereas wind stirring is in the opposite direction 盡管潮汐混合和風的攪動作用均能削弱河流沖淡水浮力引起的垂直層化現象,但是其控制機制有所不同:潮汐混合是通過湍流動能自下向上的耗散來完成的,風攪動的方向恰好相反。