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Modulation of short waves by long wavesWave-tank experiments were performed to investigate the cyclic short-wave energy changes, related in phase to an underlying long wave, which occur during active generation of the short-wave field by wind. Measurements of time series of the short-wave slope were made by a laser-optical system, where the basic long-wave parameters were controlled and wind speeds were accurately reproducible. The short-wave slope variances were found to exhibit cyclic variations that are related to the phase of the long wave. The variations result from two combined effects: (1) the short wave frequency is varied by the long-wave orbital velocity; (2) the energy of the short waves is modulated by the actions of aerodynamic and hydrodynamic couplings that operate on the short waves in a manner related to the long-wave phase.
Document ID
19780051431
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Reece, A. M., Jr.
(Florida, University Gainesville, Fla., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Oceanography
Accession Number
78A35340
Funding Number(s)
CONTRACT_GRANT: NOAA-NG-29-72
CONTRACT_GRANT: JPL-954030
Distribution Limits
Public
Copyright
Other

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