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Book Chapter

The Wave Model EXACT-NL


Hasselmann,  S.
MPI for Meteorology, Max Planck Society;


Hasselmann,  Klaus F.
MPI for Meteorology, Max Planck Society;

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Hasselmann, S., & Hasselmann, K. F. (1985). The Wave Model EXACT-NL. In Ocean wave modeling (pp. 249-251). Heidelberg u.a.: Springer.

Cite as: http://hdl.handle.net/21.11116/0000-0008-8512-D
The evolution of a windsea spectrum is strongly controlled by the nonlinear energy transfer Sn1 due to resonant wave---wave interactions. Since the exact computation of this process is very time-consuming, most operational wave models are dependent on some form of parametrization of this source function. However, recent, more efficient methods of computing the exact three-dimensional integral expression for Snl (Hasselmann and Hasselmann, 1981, 1985) have made it feasible to carry out integrations of the wave transport equation with the exact form for Snl, at least for simple cases in which only one integration variable occurs.