acc235d1-ae89-454d-802e-88e55529d4d4 2026-02-24T10:25:49.329142Z ISO 19115-3:2018 - Remote Sensing ISO 19115-3:2018 - Remote Sensing 1.0 http://www.opengis.net/def/crs/EPSG/0/4326 Détection d'algues sargasses flottantes avec les satellites Sentinel-3A&B et AQUA (moyenne 7 jours) Détection d'algues sargasses flottantes avec les satellites Sentinel-3A&B et AQUA (moyenne 7 jours) Sargassum Floating Algae Index with Sentinel-3A&B and AQUA satellites (7 days mean) 2025-01-13 creation 2025-02-17 publication v1.0 Cartes combinées de l'indice de détection des sargasses NFAI (Normalized Floating Algae Index). Produit grillé quotidien disponible en temps différé de février 2022 à mois - 1, dans le cadre du projet SCO SeSaM (www . spaceclimateobservatory . org/sesam) . Chaque carte représente la présence de sargasses (au travers d'un indice de détection d'algues flottantes normalisé) des 7 derniers jours à 0.01° de résolution. CDS-AVISO AVISO aviso@altimetry.fr pointOfContact CDS-AVISO distributor CNES funder CLS originator https://sextant.ifremer.fr/geonetwork/srv/api/records/acc235d1-ae89-454d-802e-88e55529d4d4/attachments/CLS_OLCI_MODIS.png Détections moyennes de cartes combinées des instruments MODIS et OLCI des 7 derniers jours pour le 4 mai 2024. SLes sargasses sont en bleu, les nuages et la terre sont en gris. Crédits CLS. Détections moyennes de cartes combinées des instruments MODIS et OLCI des 7 derniers jours pour le 4 mai 2024. SLes sargasses sont en bleu, les nuages et la terre sont en gris. Crédits CLS. Average detections of MODIS and OLCI of the last 7 days for May 4th 2024. Sargassum mats are shown in blue, cloud and land are shown in grey. Credits CLS. CDS-AVISO CDS-AVISO CDS-AVISO Centre de données ODATIS Centre de données ODATIS 2024-10-16 publication 2024-10-16 publication geonetwork.thesaurus.local.theme.odatis_centre_donnees Variables ODATIS Variables ODATIS 2025-01-13 publication geonetwork.thesaurus.local.theme.odatis_variables /Données d'observation/satellite /Données d'observation/satellite /Observational data/satellite Type de jeux de donnée ODATIS Type de jeux de donnée ODATIS 2024-10-15 publication 2024-10-15 publication geonetwork.thesaurus.local.theme.type_jeux_donnee Services Nationaux d'Observation Services Nationaux d'Observation 2025-07-21 publication 2025-07-21 publication geonetwork.thesaurus.local.theme.SNO Macroalgues Macroalgues Macroalgal ODATIS aggregation parameters and Essential Variable names ODATIS aggregation parameters and Essential Variable names 2025-07-29 publication 2025-07-29 publication geonetwork.thesaurus.external.theme.NVS.OD1 Cersat - Parameter Cersat - Parameter 2024-07-26 publication 2024-07-26 publication geonetwork.thesaurus.local.theme.cersat_parameter Level 4 Level 4 Level 4 Processing level Processing level 2024-07-26 publication 2024-07-26 publication geonetwork.thesaurus.local.processing-level.myocean.processing-level Licence ouverte Licence ouverte Licence Ouverte Licence Ouverte Open Licence Lorsque vous utilisez ces produits, merci de citer le DOI 10.24400/527896/a01-2024.014 ainsi que la phrase suivante: "This 7-day average of Sargassum Floating Algae Detection product using Sentinel-3A&B and AQUA satellites was produced operationally by CLS in the frame of the SAMTool service, distributed by AVISO+ with the support of SCO-CNES." Lorsque vous utilisez ces produits, merci de citer le DOI 10.24400/527896/a01-2024.014 ainsi que la phrase suivante: "This 7-day average of Sargassum Floating Algae Detection product using Sentinel-3A&B and AQUA satellites was produced operationally by CLS in the frame of the SAMTool service, distributed by AVISO+ with the support of SCO-CNES." Any use of this dataset must be verified in the AVISO+ license and must cite its DOI 10.24400/527896/a01-2024.014 as well as the following sentence: "This 7-day average of Sargassum Floating Algae Detection product using Sentinel-3A&B and AQUA satellites was produced operationally by CLS in the frame of the SAMTool service, distributed by AVISO+ with the support of SCO-CNES." grid 0.01 utf8 oceans -180.00 180.00 -65.00 85.00 2022-02-22 L4 NetCDF NetCDF https://tds-odatis.aviso.altimetry.fr/thredds/catalog/L4P/dataset-sargassum-merged-7day-olci-modis.html https://tds-odatis.aviso.altimetry.fr/thredds/catalog/L4P/dataset-sargassum-merged-7day-olci-modis.html WWW:LINK HR TDS ODATIS AVISO THREDDS THREDDS THREDDS https://www.aviso.altimetry.fr/fileadmin/documents/data/tools/hdbk_sargassum_floating_algae_index_OLCI_MODIS.pdf https://www.aviso.altimetry.fr/fileadmin/documents/data/tools/hdbk_sargassum_floating_algae_index_OLCI_MODIS.pdf WWW:LINK User guide Manuel Utilisateur Manuel Utilisateur Handbook https://doi.org/10.1109/TGRS.2006.882258 https://doi.org/10.1109/TGRS.2006.882258 https://doi.org/10.1109/TGRS.2006.882258 WWW:LINK-1.0-http--publication-URL Référence J. Gower, C. Hu, G. Borstad and S. King, "Ocean Color Satellites Show Extensive Lines of Floating Sargassum in the Gulf of Mexico," in IEEE Transactions on Geoscience and Remote Sensing, vol. 44, no. 12, pp. 3619-3625, Dec. 2006 J. Gower, C. Hu, G. Borstad and S. King, "Ocean Color Satellites Show Extensive Lines of Floating Sargassum in the Gulf of Mexico," in IEEE Transactions on Geoscience and Remote Sensing, vol. 44, no. 12, pp. 3619-3625, Dec. 2006 J. Gower, C. Hu, G. Borstad and S. King, "Ocean Color Satellites Show Extensive Lines of Floating Sargassum in the Gulf of Mexico," in IEEE Transactions on Geoscience and Remote Sensing, vol. 44, no. 12, pp. 3619-3625, Dec. 2006 https://doi.org/10.1016/j.rse.2009.05.012 https://doi.org/10.1016/j.rse.2009.05.012 https://doi.org/10.1016/j.rse.2009.05.012 WWW:LINK-1.0-http--publication-URL Référence Hu C., A novel ocean color index to detect floating algae in the global oceans, Remote Sensing of Environment, Volume 113, Issue 10, 2009, Pages 2118-2129, ISSN 0034-4257 Hu C., A novel ocean color index to detect floating algae in the global oceans, Remote Sensing of Environment, Volume 113, Issue 10, 2009, Pages 2118-2129, ISSN 0034-4257 Hu C., A novel ocean color index to detect floating algae in the global oceans, Remote Sensing of Environment, Volume 113, Issue 10, 2009, Pages 2118-2129, ISSN 0034-4257 WWW:LINK-1.0-http--publication-URL Référence Stum, J., Tebri, H., Sutton, M., and Granier, N., 2019: NRT satellite detection and drift forecast of sargassum algae in the Equatorial Atlantic, Poster presented at the IOCS meeting in Busan Stum, J., Tebri, H., Sutton, M., and Granier, N., 2019: NRT satellite detection and drift forecast of sargassum algae in the Equatorial Atlantic, Poster presented at the IOCS meeting in Busan Stum, J., Tebri, H., Sutton, M., and Granier, N., 2019: NRT satellite detection and drift forecast of sargassum algae in the Equatorial Atlantic, Poster presented at the IOCS meeting in Busan https://doi.org/10.1016/j.rse.2016.04.019 https://doi.org/10.1016/j.rse.2016.04.019 https://doi.org/10.1016/j.rse.2016.04.019 WWW:LINK-1.0-http--publication-URL Référence Wang M., Hu C., Mapping and quantifying Sargassum distribution and coverage in the Central West Atlantic using MODIS observations, Remote Sensing of Environment, Volume 183, 2016, Pages 350-367, ISSN 0034-4257 Wang M., Hu C., Mapping and quantifying Sargassum distribution and coverage in the Central West Atlantic using MODIS observations, Remote Sensing of Environment, Volume 183, 2016, Pages 350-367, ISSN 0034-4257 Wang M., Hu C., Mapping and quantifying Sargassum distribution and coverage in the Central West Atlantic using MODIS observations, Remote Sensing of Environment, Volume 183, 2016, Pages 350-367, ISSN 0034-4257 https://tds-odatis.aviso.altimetry.fr/thredds/wms/dataset-sargassum-merged-7day-olci-modis?service=WMS&version=1.3.0&request=GetCapabilities https://tds-odatis.aviso.altimetry.fr/thredds/wms/dataset-sargassum-merged-7day-olci-modis?service=WMS&version=1.3.0&request=GetCapabilities OGC:WMS nfai_max View (WMS) https://doi.org/10.24400/527896/a01-2024.014 https://doi.org/10.24400/527896/a01-2024.014 https://doi.org/10.24400/527896/a01-2024.014 DOI Digital Object Identifier (DOI) V