A Comparative Analysis of Atmospheric Dynamic Near-Water Layer Models amg

This paper cons­iders the curr­ently avai­lable appr­oac­hes to cons­truc­ting nume­rical models desc­rib­ing the depe­nde­nce of para­met­ers of the atmo­sphe­ric boun­dary layer on waving para­met­ers (dynamic boun­dary layer). The models prop­osed in [1, 2] are char­acte­rized by deta­iled nume­rical algo­rit­hms, nume­rical calc­ulat­ions, and comp­aris­ons of the resi­sta­nce coef­fici­ent C _d as func­tions of the para­met­ers of the waving surface, the state of which is given by the model two-dime­nsio­nal wave spec­trum as repr­esen­ted in [3]. For the same spec­trum, the calc­ulat­ion results obta­ined by diff­erent models are shown to yield esti­mates for the value of C _d with a more than twofold disc­repa­ncy; however, the trends in the depe­nde­nce of C _d on wave age and wind stre­ngth are close to one another and to obse­rvat­ional data. Poss­ible shor­tcom­ings of both appr­oac­hes are anal­yzed, and ways to elim­inate them are prop­osed. The requ­irem­ents for setting special expe­rime­nts needed to verify theo­reti­cal models of the dynamic boun­dary layer are disc­ussed.