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Title

Numerical investigation of spectral evolution of wind waves part I: wind-input source function

Author(s)

Tsagareli, K. N.;  Babanin, A. V.;  Walker, D. J.;  Young, I. R.

Abstract

This paper is dedicated to the investigation and calibration of the parameterized form for the wind-input source term Sin proposed earlier on the basis of field observations at Lake George, Australia. The main objective of this study was to obtain spectral forms for the wind-input source function Sin, which incorporates the novel observation-based features and at the same time satisfies the important physical constraint that the total integrated wind input must agree with independently observed magnitudes of the wind stress. Within this approach, a new methodology, a dynamic self-adjusting routine, was developed for correction of the wind-input source function Sin. This correction involves a frequency-dependent adjustment to the growth rate γ(f), based on extrapolations from field data. The model results also show that light winds require higher-rate adjustments of the wind input than strong winds.

Publication type

Journal article

Research centre

Swinburne University of Technology

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences

Source

Journal of Physical Oceanography, Vol. 40, no. 4 (Apr 2010), pp. 656-666

Publication year

2010

FOR Code(s)

0405 Oceanography

Keyword(s)

Numerical analysis;  Spectral analysis;  Wind input;  Wind waves

Publisher

American Meteorological Society

ISSN

0022-3670

Publisher URL

http://dx.doi.org/10.1175/2009jpo4345.1

Copyright

Copyright © 2010 American Meteorological Society. Published version of the paper reproduced here in accordance with the copyright policy of the publisher.

Full text

Peer reviewed