The growth of surface gravity waves is investigated in an open sea region dominated by swell. An extensive database was collected by the Brazilian Oil Company during the South Atlantic Deep Water Program (PROCAP) in Campos Basin, off coast of Rio de Janeiro. This is the most important petrolic basin in Brazil where tens of drilling platforms are located. The data set contains over 5800 directional wave spectra measured by a heave-pitch-roll buoy in conjunction with meteorological data. A spectral approach is applied in a novel method for the partitioning of sea from swell and for the adjustment of the spectral parameters. The wave growth is investigated and the regression laws of the windsea extracted from the swell-contaminated spectra are compared to earlier works in sheltered areas. It is shown that, on the grounds of the equilibrium range theory, the high-frequency spectral level (the alpha parameter) scale with the reciprocal wave age in the same manner as in unimodal swell-free spectra.
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February 2002
Technical Papers
On the Growth of Wind-Generated Waves in a Swell-Dominated Region in the South Atlantic
Nelson Violante-Carvalho,
Nelson Violante-Carvalho
University of Southampton, Southampton Oceanography Centre-SOC, Southampton, SO14 3ZH, UK
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Carlos Eduardo Parente,
Carlos Eduardo Parente
Rio de Janeiro Federal University COPPE/UFRJ, Rio de Janeiro, Brazil
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Ian S. Robinson,
Ian S. Robinson
University of Southampton, Southampton Oceanography Centre-SOC, Southampton, SO14 3ZH, UK
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Luis Manoel P. Nunes
Luis Manoel P. Nunes
Brazilian Oil Company CENPES/PETROBRAS, Rio de Janeiro, Brazil
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Nelson Violante-Carvalho
University of Southampton, Southampton Oceanography Centre-SOC, Southampton, SO14 3ZH, UK
Carlos Eduardo Parente
Rio de Janeiro Federal University COPPE/UFRJ, Rio de Janeiro, Brazil
Ian S. Robinson
University of Southampton, Southampton Oceanography Centre-SOC, Southampton, SO14 3ZH, UK
Luis Manoel P. Nunes
Brazilian Oil Company CENPES/PETROBRAS, Rio de Janeiro, Brazil
Contributed by the Offshore Mechanics and Arctic Engineering Division and presented at the 20th International OMAE Conference, Rio de Janeiro, Brazil, June 3–8, 2001, of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS. Manuscript received by the OMAE Division July 24, 2000; revised manuscript received August 4, 2001. Editor: S. Liu.
J. Offshore Mech. Arct. Eng. Feb 2002, 124(1): 14-21 (8 pages)
Published Online: August 4, 2001
Article history
Received:
July 24, 2000
Revised:
August 4, 2001
Citation
Violante-Carvalho, N., Parente, C. E., Robinson, I. S., and Nunes, L. M. P. (August 4, 2001). "On the Growth of Wind-Generated Waves in a Swell-Dominated Region in the South Atlantic ." ASME. J. Offshore Mech. Arct. Eng. February 2002; 124(1): 14–21. https://doi.org/10.1115/1.1423636
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