The form of the asymptotic depth-limited wind-wave frequency spectrum

Date

2006

Authors

Young, Ian
Babanin, Alexander V

Journal Title

Journal ISSN

Volume Title

Publisher

American Geophysical Union

Abstract

This paper presents a comprehensive set of field experiments investigating the form of the asymptotic, depth-limited wind wave frequency spectrum. Such a spectrum represents the upper limit to growth from active wind forcing in finite depth conditions. The data clearly define asymptotic limits for the nondimensional energy and nondimensional wave number as functions of nondimensional water depth. In contrast to deep water spectra, the asymptotic depth-limited form has a harmonic at a frequency slightly less than twice the spectral peak frequency. A parametric form is proposed for the spectral form, and clear functional relationships are found for all the spectral parameters. These relationships mean that the full asymptotic, depth-limited spectrum can be determined with knowledge of only the water depth and wind speed.

Description

Keywords

Keywords: Bathymetry; Oceanography; Spectrum analysis; Velocity measurement; Wind; spectral analysis; water depth; wind velocity; wind wave

Citation

Source

Journal of Geophysical Research

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

Restricted until

2037-12-31