Open AccessWeak‐Turbulent Theory of Wind‐Driven Sea
Author(s) -
Zakharov Vladimir E.,
Badulin Sergei I.,
Geogjaev Vladimir V.,
Pushkarev Andrey N.
Publication year - 2019
Publication title -
earth and space science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.843
H-Index - 23
ISSN - 2333-5084
DOI - 10.1029/2018ea000471
Subject(s) - fetch , physics , kinetic energy , energy balance , turbulence , wind wave , turbulence kinetic energy , energy (signal processing) , classical mechanics , mechanics , geology , quantum mechanics , thermodynamics , oceanography
We present a self‐consistent analytic theory of the wind‐driven sea—the weak‐turbulent theory. The base statement of the theory is that the four‐wave resonant interactions play the leading role in the energy balance of the wind‐driven sea. We study the exact solution of the stationary wave kinetic equation and the self‐similar solutions of wave kinetic equation both in fetch‐ and duration‐limited cases. The theory makes possible to explain the nature of universal power‐like energy spectra as well as the power‐like dependence of the total wave energy and peak frequency from the fetch and the duration.