Dumas F. auteur aut IRD Le Gendre R. auteur aut IRD Thomas Y. auteur aut IRD Andréfouët Serge auteur aut IRD text journalArticle eng text/pdf reformatted digital access Hydrodynamic functioning and water circulation of the semi-closed deep lagoon of Ahe atoll (Tuamotu Archipelago, French Polynesia) were investigated using 1 year of field data and a 3D hydrodynamical model. Tidal amplitude averaged less than 30 cm, but tide generated very strong currents (2 m s-1) in the pass, creating a jet-like circulation that partitioned the lagoon into three residual circulation cells. The pass entirely flushed excess water brought by waves-induced radiation stress. Circulation patterns were computed for climatological meteorological conditions and summarized with stream function and flushing time. Lagoon hydrodynamics and general overturning circulation was driven by wind. Renewal time was 250 days, whereas the e-flushing time yielded a lagoon-wide 80-days average. Tide-driven flush through the pass and wind-driven overturning circulation designate Ahe as a wind-driven, tidally and weakly wave-flushed deep lagoon. The 3D model allows studying pearl oyster larvae dispersal in both realistic and climatological conditions for aquaculture applications. specialized LAGON CIRCULATION OCEANIQUE COURANT MARIN VENT MODELE NUMERIQUE DE TERRAIN AQUACULTURE HUITRE PERLIERE IMPACT DE L'ENVIRONNEMENT POLYNESIE FRANCAISE 032DYNEAU 040AQUA Andréfouët Serge ed. edt IRD Charpy Loïc ed. edt IRD 65 10-12 425-440 2012 0025-362X https://www.documentation.ird.fr/hor/fdi:010056902 10.1016/j.marpolbul.2012.05.041 0025-362X [F A010056899] https://www.documentation.ird.fr/hor/fdi:010056902 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers21-01/010056902.pdf IRD - Base Horizon / Pleins textes 2012-09-07 2021-02-10 fdi:010056902 fre