Bourras D. auteur aut IRD Weill A. auteur aut IRD Caniaux G. auteur aut IRD Eymard Laurence auteur aut IRD Bourlès Bernard auteur aut IRD Letourneur S. auteur aut IRD Legain D. auteur aut IRD Key E. auteur aut IRD Baudin F. auteur aut IRD Piguet B. auteur aut IRD Traullé O. auteur aut IRD Bouhours G. auteur aut IRD Sinardet B. auteur aut IRD Barrié J. auteur aut IRD Vinson J. P. auteur aut IRD Boutet F. auteur aut IRD Berthod C. auteur aut IRD Clémençon A. auteur aut IRD text journalArticle eng text/pdf born digital access Turbulent fluxes at the air-sea interface were estimated in the framework of the African Monsoon Multidisciplinary Analysis (AMMA) international program. A specific flux measurement mast was designed so as to minimize aerodynamic flow distortion and vibrations. The mast was installed on the research vessel Atalante that cruised in the Gulf of Guinea during the onset of the African monsoon, in June-July 2006. Turbulent fluxes were calculated with an eddy covariance method and with a spectral method. Calculation of eddy correlation fluxes required a correction of flow distortion at turbulent scales, which was performed with a new statistical technique. Application of the spectral flux calculation method revealed that an imbalance term was required, in agreement with results from earlier experiments, and indicated that the value of the Kolmogorov constant (0.55) should not be modified. Bulk exchange coefficients calculated are in good agreement with earlier parameterizations in medium wind conditions. specialized 032 021 114 C04014 2009 0148-0227 https://www.documentation.ird.fr/hor/fdi:010046788 10.1029/2008jc004951 0148-0227 [F B010046788] https://www.documentation.ird.fr/hor/fdi:010046788 https://www.documentation.ird.fr/intranet/publi/depot/2009-06-23/010046788.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2009-06-08 2017-08-23 fdi:010046788 fre