Energy dissipation across the wave spectrum - Breaking and Dissipation of Ocean Surface Waves - page 291

Figure 7.17 Normalised directional spreading function D (θ) (7.57) , for different values of θ p and
p . Figure is reproduced from Babanin et al. ( 2010c ) © American Meteorological Society. Reprinted
with permission

Figure 7.18 Three-dimensional dissipation function S ds ( f ,θ) with the bimodal directional spread-
ing V ( f ,θ) (7.56) . Figure is reproduced from Babanin et al. ( 2010c ) © American Meteorological
Society. Reprinted with permission

For further technical details of implementing the bimodal directional dissipation distri-
bution we refer the reader to Tsagareli ( 2009 ) and Babanin et al. ( 2010c ). Here, Figure 7.18
shows an example of an initial model setup of the three-dimensional spectral dissipation
function S ds (

f ,θ) with such a spreading function V (θ, f , U 10 / c p ) (7.56) . In the figure, at

20 ◦ ,

the spectral peak it was assumed θ p = p = 1, and the initial setup was done for a