An improved method for accurate computation of coastal upwelling index using Sea Surface Temperature Images

Anass El Aouni 1, 2 Khalid Minaoui 1 Ayoub Tamim 1 Khalid Daoudi 2 Hussein Yahia 2 Driss Aboutajdine 1
1 LRIT
LRIT - Laboratoire de Recherche Informatique et Télécommunications
Abstract : In this paper we aim to present a new methodology to derive rigorous SST-based coastal upwelling index for the purpose of conducting a saisonal variablity of upwelling area along the Moroccan Atlantic coast. The method is based on the scientific knowledge of upwelling area and its spatial distribution provided by expert oceanographers.The latter consists in automatically identify and extract the region covered by the upwelling waters in the costal ocean of Morocco using the Fuzzy c-means algorithm and finding regions of homogeneous pixels. Then Region Growing process is used to filter out the remaining noisy structures in the offshort waters. The methodology is used to provide a satistical view of the spatial and temporal variability of the Moroccan upwelling activity. The relevance of the proposed Coastal Upwelling Index (CUI) is evaluated by an oceanographer using 86 8-days sea surface temperature images and it is shown to be superior to that of the standard upwelling index.
Type de document :
Communication dans un congrès
13th ACS/IEEE International Conference on Computer Systems and Applications , Nov 2016, Agadir, Morocco. 2016, 13th ACS/IEEE International Conference on Computer Systems and Applications 〈http://www.aiccsa.net/AICCSA2016/home〉
Liste complète des métadonnées

https://hal.inria.fr/hal-01424036
Contributeur : H. Yahia <>
Soumis le : dimanche 1 janvier 2017 - 19:34:40
Dernière modification le : mercredi 3 janvier 2018 - 14:18:08
Document(s) archivé(s) le : dimanche 2 avril 2017 - 13:56:14

Fichier

aiccsa-2016.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-01424036, version 1

Collections

Citation

Anass El Aouni, Khalid Minaoui, Ayoub Tamim, Khalid Daoudi, Hussein Yahia, et al.. An improved method for accurate computation of coastal upwelling index using Sea Surface Temperature Images. 13th ACS/IEEE International Conference on Computer Systems and Applications , Nov 2016, Agadir, Morocco. 2016, 13th ACS/IEEE International Conference on Computer Systems and Applications 〈http://www.aiccsa.net/AICCSA2016/home〉. 〈hal-01424036〉

Partager

Métriques

Consultations de la notice

259

Téléchargements de fichiers

103