Drag Coefficient Parameterization under Hurricane Wind Conditions

The influence of small-scale processes at the ocean–atmosphere boundary layer such as spray and foam on surface waves prediction is studied. Estimates effect including exact number specific fragmentation “parachute” type in resulting drag coefficient shown. For estimates, numerical simulations within WAVEWATCH III wave model are performed. parameterizations wind input tested model: default ST4 ST6 ST1 used together with implemented parameterization. proposed parameterization takes into account presence spay. obtained results compared NDBC buoys data. importance for hurricane winds prospects their inclusion modern models