Control of Estuarine Stratification and Mixing by Wind-induced Straining of the Estuarine Density Field

摘要: Observations from the York River Estuary, Virginia, demonstrate that along-channel wind plays a dominant role in governing estuarine exchange flow and corresponding increase or decrease vertical density stratification. Contrary to previous findings suggest stress acts predominantly as source of energy mix away stratification, our results can play more important straining gradient. Down-estuary winds enhance tidally-averaged shear, which interacts with gradient Up-estuary tend reduce, even reverse reducing In two experiments each lasting approximately month, was highly correlated component wind. The changes stratification caused by appear control amount mixing parameterized eddy viscosity. degree induced also appears an controlling effectiveness tidal mixing.