Benazzouz A. auteur aut IRD Mordane S. auteur aut IRD Orbi A. auteur aut IRD Chagdali M. auteur aut IRD Hilmi K. auteur aut IRD Atillah A. auteur aut IRD Pelegri J. L. auteur aut IRD Demarcq Hervé auteur aut IRD text journalArticle eng text/pdf born digital access A new methodology to derive an SST-based upwelling index was based on a rigorous spatial analysis of satellite SST fields and their variability, by referring to previous works, from Wooster et al. (1976) to Santos et al. (2011). The data was precautiously processed by considering data quality aspects (including cloud cover) and the best way to derive accurate coastal SST and its offshore reference. The relevance of the developed index was evaluated by comparing its spatial and seasonal consistency against two wind-based indices as well as with the previous SST-based indices, largely superseding these later ones in term of overall quality and spatio-temporal dynamic. Our index adequately describes the spatio-temporal variability of the coastal upwelling intensity in the Canary Current upwelling system and has the advantage of describing complementary aspects of the coastal dynamics of the region that were not covered by Ekman-based indices. The proposed methodology is generic and can be easily applicable to various coastal upwelling systems, especially the four major eastern boundary upwelling ecosystems. specialized Coastal upwelling Coastal upwelling index Canary upwelling system West Africa Sea surface temperature Remote sensing ESPAGNE MAURITANIE MAROC SENEGAL OCEAN ATLANTIQUE CANARIAS 032 126 021 81 38-54 2014 0278-4343 https://www.documentation.ird.fr/hor/fdi:010062250 10.1016/j.csr.2014.03.012 0278-4343 [F B010062250] https://www.documentation.ird.fr/hor/fdi:010062250 https://www.documentation.ird.fr/intranet/publi/2014/07/010062250.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2014-07-24 2017-08-23 fdi:010062250 fre