'on 2 n 



5 5 I Resistance factors as functions of p^ = cr /v^ 

 Yot = 2^^^ 



Y , Yf Resistance factors as functions of p = O'/v. 



Y^Cp) Effective friction coefficient. 



A Mean rate of energy transfer to wave due to normal 



^ wind pressure. 



A. Mean rate of energy transfer to wave due to tangential 



wind stress. 



A = A 



+ A. = p'v-^p.C(p): Effective energy transfer to wave due 

 ° to wind action. 



C(p) Effective resistance coefficient (dimensionless) as 

 function of p. 



s = 0.095 Sheltering coefficient; s* = 2s; s' = s/2. 



c^ = svd = sax 



n = 0.1075 \ 



r = 1.667 y Constants used in empirical relationship 6 = f(p). 





p = 0.062 



Dit Mean rate of energy dissipation due to viscosity, 



M- Viscosity of sea water. 



D,., D Mean rate of energy dissipation due to eddy viscosity 

 in turbulent wave motion. 



M Eddy viscosity coefficient at fully developed sea. 



M(p) Eddy viscosity coefficient at growing wave motion as 

 function of wave age p. 



B(p) Effective factor of energy dissipation due to eddy 

 viscosity (dimensionless quantity) as function of fi. 



gx/v Dimensionless fetch parameter. 



gt/v Dimensionless duration parameter. 



gH/v Dimensionless wave height parameter. 



iii 



