资源环境科技发展态势分析平台

Following evidence derived in the field and from previous numerical experiments, we carry out wave modeling tests where the white-capping and wind input source functions are modified to be functions of also the rain rate and the wind speed. We show the high sensitivity of the results to these parameterizations and how related physically sound, but purely intuitive, choices can reproduce almost perfectly the original results also in extreme conditions. We discuss the related physical and numerical implications.

Plain Language Summary Practical experience at sea strongly suggests that a heavy rain affects macroscopically both the wave generation by wind and the white-capping usually seen in generative conditions. This contrasts with the physical formulations presently at the base of wave modeling. Assuming both the above processes as dependent on rain rate and wind speed shows the sensitivity of the results to the related formulations. A reasoned tentative formulation leads to results practically coincident with those of the operational ones.