Dutheil C. auteur aut IRD Andréfouët Serge auteur aut IRD Jullien S. auteur aut IRD Le Gendre R. auteur aut IRD Aucan Jerôme auteur aut IRD Menkès Christophe auteur aut IRD text journalArticle eng text/pdf born digital access In the South Pacific (SP) pearl farming atolls, wind is the main driver of lagoon water circulation, affecting dispersal and survival of pearl oyster larvae. To characterize typical wind conditions in the SP, wind regime classifications are performed from regional climate simulations using the WRF model, for present-day and for the end of the 21st century under RCP8.5 scenario conditions. At the daily time-scale, 4 regimes are identified: a trade-wind, a north-easterly, and two easterly regimes. Their characteristics are driven by large-scale circulation and climate modes of variability. In future projection, all regimes are characterized by a similar to 15% wind speed increase, while directions and occurrence frequencies undergo marginal changes. At the monthly time-scale that corresponds to pearl oyster pelagic larval duration, nine wind regimes are determined including three regimes with wind reversals. These regimes can be used to model typical lagoon conditions during larval dispersal. specialized South Central Pacific atolls Weather regime Surface wind conditions Pearl farming Climate change PACIFIQUE SUD POLYNESIE FRANCAISE COOK ILES SOCIETE ILES TUAMOTU GAMBIER ZONE TROPICALE ZONE EQUATORIALE 032 020 040 021 160 111584 [14 p.] 2020 0025-326X https://www.documentation.ird.fr/hor/fdi:010079990 0025-326X [F B010079990] https://www.documentation.ird.fr/hor/fdi:010079990 https://www.documentation.ird.fr/intranet/publi/2020/12/010079990.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2021-01-14 2021-01-14 fdi:010079990 fre