Abstract
The spatial structures of short wind-generated waves from 0.6 to 12 cm were measured with a scanning optical slope sensor and the wavenumber-frequency spectra of surface slope and curvature under various wind velocities were computed. The results show that the energy densities of both the frequency and wavenumber spectra increase with the wind-friction velocity. The rate of increase with wind-friction velocity is linear in the gravity and short capillary regions and between square to cubic in the gravity-capillary (centimeter waves) region. The drop-off of the wavenumber ( k) spectrum varies from k −4 in the gravity region to k −8 in the capillary region, with a sharp break between the two regions occurring at the dividing wavelength from 0.8 cm at low winds to 1.6 cm at high winds. The magnitudes of the mean-square slope and mean-square curvature at various wind velocities are also presented. The fractional contribution to the mean-square slope from short waves of 0.6–12 cm in length is more than 50%, and the ratio shows an increase with with velocity
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
