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Publications
León, S.P. and Guedes Soares, C. (2005), “Influence of Spatial Resolution on the Modelled Waves Sheltering Effect of Ocean Islands”, Proceedings of 5th International Symposium on Ocean Waves Measurement and Analysis (WAVES´05), 3-7 of July, Madrid, Spain
The effect of resolving relatively small islands in a third generation wave model covering the whole North Atlantic is shown to have noticeable effects at long distances from the islands in addition to the local effects that have been reported earlier. To resolve the islands two fine grids were adopted, which then nested in the overall model. The examples presented show the shadowing effect of Azores Islands for three specific wave conditions: when they come from SW, from W and from the NW. The sheltering effect of the Islands was demonstrated by a reduction of the significant wave height in the region on the leeward side of Azores Archipelago, when comparing the wave model results with the islands resolved and unresolved. The "shadow" induced by the islands is much wider than the islands themselves probably related to the directional spreading of the waves.
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