Ali K.E. auteur aut IRD Kouadio K.Y. auteur aut IRD Zahiri E.P. auteur aut IRD Amam A. auteur aut IRD Assamoi A.P. auteur aut IRD Bourlès Bernard auteur aut IRD text journalArticle eng text/pdf reformatted digital access The Gulf of Guinea (GG) is an area where a seasonal upwelling takes place, along the equator and its northern coasts between Benin and Cote d’Ivoire. The coastal upwelling has a real impact on the local yet documented biological resources. However, climatic impact studies of this seasonal upwelling are paradoxically very rare and disseminated and this impact is still little known, especially on the potential part played by the upwelling onset on the regional precipitation in early boreal summer. This study shows that coastal precipitations of the July-September period are correlated by both the coastal and equatorial sea-surface temperatures (SSTS). This correlation results in a decrease or a rise of rainfall when the SSTs are abnormally cold or warm respectively. The coastal areas that are more subject to coastal and equatorial SSTs influence are located around the Cape Three Points, where the coastal upwelling exhibits the maximum of amplitude. specialized UPWELLING COURANT COTIER CIRCULATION OCEANIQUE PRECIPITATION TEMPERATURE DE SURFACE ATLANTIQUE GOLFE DE GUINEE ZONE TROPICALE GHANA 032DYNEAU 062MECEAU 4 3 271-285 2011 1996-3343 https://www.documentation.ird.fr/hor/fdi:010070394 10.3923/ajaps.2011.271.285 1996-3343 [F B010070394] https://www.documentation.ird.fr/hor/fdi:010070394 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers17-07/010070394.pdf IRD - Base Horizon / Pleins textes 2017-07-18 2017-07-28 fdi:010070394 fre