期刊
MARINE POLLUTION BULLETIN
卷 65, 期 10-12, 页码 415-424出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2012.05.042
关键词
Wave field; Island shadow effect; Altimeter; Wave model; Aquaculture; Society Archipelago
资金
- 9th European Development Fund through the French Polynesia Service de la Perliculture [POF/001/002N1]
- ERC [240009]
- US National Ocean Partnership Program [N00014-10-10383]
- European Research Council (ERC) [240009] Funding Source: European Research Council (ERC)
To implement a numerical model of atoll lagoon circulation, we characterized first the significant wave height (Hs) regime of the Western Tuamotu Archipelago and the local attenuation due to the protection offered by large atolls in the south Tuamotu. Altimetry satellite data and a WAVEWATCH III two-way nested wave model at 5 km resolution from 2000 to 2010 were used. Correlation between altimetry and model was high (0.88) over the period. According to the wave model, the archipelago inner seas experienced attenuated Hs year-long with a yearly average Hs around 1.3 m vs a minimum of 1.6 m elsewhere. The island shadow effect is especially significant in the austral winter. In contrast with southern atolls, Western Tuamotu experienced only few days per year of Hs larger than 2.5 m generated by very high Hs southern swell, transient western local storms, strong easterly winds, and during the passage of distant hurricanes. (C) 2012 Elsevier Ltd. All rights reserved.
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