Relationship between Sea Surface Drag Coefficient and Wind-Wave Parameter

Sea surface drag coefficient Cd is fitted by four wind-wave parameters that are wave age, wave steepness, windsea Reynolds number RB and RH directly, with laboratory, field and combined data set. Comparison and analysis of dependence of Cd on wind-wave parameters show that, among the four wind-wave parameters, windsea Reynolds number RB can fit the Cd most appropriately.