The nearshore wave energy resource in Portugal has been assessed through the development of ONDATLAS. This is an electronic atlas, compatible with Internet access, containing comprehensive wave climate and wave energy statistics for 78 points at about water depth spaced variably ca., 5 points at deep water, and 2 points at open ocean locations. The data were produced by a third-generation wind-wave model, complemented by an inverse-ray model that computes the directional spectra transformation from open ocean to the nearshore. Shoaling, refraction, bottom dissipation, and shelter by the coastline and/or neighboring islands are taken into account. ONDATLAS statistics comprise yearly and monthly values, variability and probability data for significant wave height, energy (mean) period, peak period and wave power, and directional histograms for wave and power direction. Joint probability distributions for various combinations of the above parameters are also available, as well as extreme values and return period for wave height and period parameters. A summary of the detailed verification of this model using long-term buoy measurements at four sites is presented. The main characteristics of ONDATLAS are described. The strong spatial variability that wave conditions exhibit at the coastal area are illustrated and a brief assessment of the nearshore resource at the Portugal mainland is presented.
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e-mail: teresa.pontes@ineti.pt
e-mail: ricardo.aguiar@ineti.pt
e-mail: hopires@mail.telepac.pt
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August 2005
Technical Papers
A Nearshore Wave Energy Atlas for Portugal
M. T. Pontes,
e-mail: teresa.pontes@ineti.pt
M. T. Pontes
INETI
, Dept. Renewable Energies, Estrada do Paço do Lumiar, Lisbon, P-1649-038 Lisboa, Portugal
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R. Aguiar,
e-mail: ricardo.aguiar@ineti.pt
R. Aguiar
INETI
, Dept. Renewable Energies, Estrada do Paço do Lumiar, Lisbon, P-1649-038 Lisboa, Portugal
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H. Oliveira Pires
e-mail: hopires@mail.telepac.pt
H. Oliveira Pires
Macrofísica
, Calçada de St. Amaro, 152 B, Lisbon, P-1300-516 Lisboa, Portugal
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M. T. Pontes
INETI
, Dept. Renewable Energies, Estrada do Paço do Lumiar, Lisbon, P-1649-038 Lisboa, Portugale-mail: teresa.pontes@ineti.pt
R. Aguiar
INETI
, Dept. Renewable Energies, Estrada do Paço do Lumiar, Lisbon, P-1649-038 Lisboa, Portugale-mail: ricardo.aguiar@ineti.pt
H. Oliveira Pires
Macrofísica
, Calçada de St. Amaro, 152 B, Lisbon, P-1300-516 Lisboa, Portugale-mail: hopires@mail.telepac.pt
J. Offshore Mech. Arct. Eng. Aug 2005, 127(3): 249-255 (7 pages)
Published Online: April 1, 2003
Article history
Revised:
April 1, 2003
Received:
August 19, 2003
Citation
Pontes, M. T., Aguiar, R., and Oliveira Pires, H. (April 1, 2003). "A Nearshore Wave Energy Atlas for Portugal." ASME. J. Offshore Mech. Arct. Eng. August 2005; 127(3): 249–255. https://doi.org/10.1115/1.1951779
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