Continental Shelf Currents in Tropical Storm Delia: Observations and Theory

Abstract
Storm currents are a significant part of the design hydrodynamic flow field in areas subject to tropical storms. In September 1973, Tropical Storm Delia passed over the instrumented Buccaneer platform located in 20 m of water 50 kin south of Galveston, Tex. Current meter records from three depths show the storm produced currents on the order of 2 m s−1 which persisted to near the bottom. A mathematical model of wind-driven current generation was successful in hindcasting the observed current development after a linear slip condition bottom was incorporated in the model. Abstract Storm currents are a significant part of the design hydrodynamic flow field in areas subject to tropical storms. In September 1973, Tropical Storm Delia passed over the instrumented Buccaneer platform located in 20 m of water 50 kin south of Galveston, Tex. Current meter records from three depths show the storm produced currents on the order of 2 m s−1 which persisted to near the bottom. A mathematical model of wind-driven current generation was successful in hindcasting the observed current development after a linear slip condition bottom was incorporated in the model.