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Sensitivity Of Bottom Stress And Bottom Roughness Estimates To Density Stratification, Eckernforde Bay, Southern Baltic Sea, Carl T. Friedrichs, Ld Wright
Sensitivity Of Bottom Stress And Bottom Roughness Estimates To Density Stratification, Eckernforde Bay, Southern Baltic Sea, Carl T. Friedrichs, Ld Wright
VIMS Articles
Thermohaline density stratification may significantly alter the classic near-bottom logarithmic velocity profile in many weak to moderately energetic, partially mixed estuaries. Results from Eckernforde Bay suggest fits to log profiles which neglect thermohaline stratification may lead to overestimates of bottom stress and roughness of the order of 130 % and 600 %, respectively. Measurements of velocity obtained at four heights within 1 m of the seabed are input to theoretical models for velocity shear derived via dimensional arguments for the ''overlap'' layer. Previous investigators applying dimensional arguments to thermohaline stratification in estuaries have assumed buoyancy flux to be independent of …