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            <gco:CharacterString>Cartes journalières de distribution des couvertures de Sargasses dérivées des observations MODIS-Terra et MODIS-Aqua sur l'océan Atlantique, calculées avec l'algorithme SAREDA (SArgassum Evolving Distribution in the Atlantic) basé sur l'indice AFAI (Alternative Floating Algae Index).
	
L'algorithme SAREDA (SArgassum Evolving Distribution in the Atlantic) effectue une détection contextuelle des sargasses en utilisant l'indice alternatif d'algues flottantes (AFAI) (Wang et Hu, 2016). L'écart de l'indice AFAI par rapport au fond est utilisé pour récupérer la couverture de la zone en Sargasses, c'est-à-dire la fraction des pixels MODIS couverts par les Sargasses. Les composites quotidiens sur des grilles de 1 km et 5 km sont dérivés des acquisitions instantanées de MODIS-Terra et MODIS-Aqua.

Dans le cadre du projet SAREDA, supporté par le TOSCA-CNES et l’IRD, le MIO s’est associé au pôle AERIS et son centre de données et de services ICARE spécialisé dans l’exploitation massive des données spatiales d’observation de la Terre, pour le traitement de ces données. GeoID-OCEAN a contribué à la mise en place du prototype de la chaîne de traitement.</gco:CharacterString>
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                  <gmd:LocalisedCharacterString locale="#FR">Cartes journalières de distribution des couvertures de Sargasses dérivées des observations MODIS-Terra et MODIS-Aqua sur l'océan Atlantique, calculées avec l'algorithme SAREDA (SArgassum Evolving Distribution in the Atlantic) basé sur l'indice AFAI (Alternative Floating Algae Index).
	
L'algorithme SAREDA (SArgassum Evolving Distribution in the Atlantic) effectue une détection contextuelle des sargasses en utilisant l'indice alternatif d'algues flottantes (AFAI) (Wang et Hu, 2016). L'écart de l'indice AFAI par rapport au fond est utilisé pour récupérer la couverture de la zone en Sargasses, c'est-à-dire la fraction des pixels MODIS couverts par les Sargasses. Les composites quotidiens sur des grilles de 1 km et 5 km sont dérivés des acquisitions instantanées de MODIS-Terra et MODIS-Aqua.

Dans le cadre du projet SAREDA, supporté par le TOSCA-CNES et l’IRD, le MIO s’est associé au pôle AERIS et son centre de données et de services ICARE spécialisé dans l’exploitation massive des données spatiales d’observation de la Terre, pour le traitement de ces données. GeoID-OCEAN a contribué à la mise en place du prototype de la chaîne de traitement.</gmd:LocalisedCharacterString>
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                  <gmd:LocalisedCharacterString locale="#EN">Daily gridded Sargassum area coverage derived from MODIS Terra and Aqua observations over the Atlantic, produced with the AFAI (Alternative Floating Algae Index)-based SAREDA (SArgassum Evolving Distribution in the Atlantic) algorithm.
The SAREDA (SArgassum Evolving Distribution in the Atlantic) algorithm performs a contextual detection of Sargassum using the Alternative Floating Algae Index (AFAI) (Wang and Hu, 2016). The AFAI deviation with respect to the local background is used to retrieve the Sargassum area coverage, i.e. the fraction of MODIS pixels covered with Sargassum. Daily gridded 1km and 5km composites are derived from MODIS-Terra and MODIS-Aqua instantaneous retrievals.

Within the framework of the SAREDA project, supported by TOSCA-CNES and IRD, the MIO has partnered with the AERIS cluster and its ICARE data and services centre specialised in the massive exploitation of Earth observation spatial data, for the processing of data. GeoID-OCEAN contributed to the implementation of the prototype processing chain.</gmd:LocalisedCharacterString>
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                  <gco:CharacterString>L'algorithme SAREDA (SArgassum Evolving Distribution in the Atlantic) effectue une détection contextuelle des sargasses en utilisant l'indice alternatif d'algues flottantes (AFAI) (Wang et Hu, 2016). L'écart de l'indice AFAI par rapport au fond est utilisé pour récupérer la couverture de la zone en Sargasses, c'est-à-dire la fraction des pixels MODIS couverts par les Sargasses. Les composites quotidiens sur des grilles de 1 km et 5 km sont dérivés des acquisitions instantanées de MODIS-Terra et MODIS-Aqua.
Dans le cadre du projet SAREDA, supporté par le TOSCA-CNES et l’IRD, le MIO s’est associé au pôle AERIS et son centre de données et de services ICARE spécialisé dans l’exploitation massive des données spatiales d’observation de la Terre, pour le traitement de ces données. GeoID-OCEAN a contribué à la mise en place du prototype de la chaîne de traitement.</gco:CharacterString>
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Dans le cadre du projet SAREDA, supporté par le TOSCA-CNES et l’IRD, le MIO s’est associé au pôle AERIS et son centre de données et de services ICARE spécialisé dans l’exploitation massive des données spatiales d’observation de la Terre, pour le traitement de ces données. GeoID-OCEAN a contribué à la mise en place du prototype de la chaîne de traitement.</gmd:LocalisedCharacterString>
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Within the framework of the SAREDA project, supported by TOSCA-CNES and IRD, the MIO has partnered with the AERIS cluster and its ICARE data and services centre specialised in the massive exploitation of Earth observation spatial data, for the processing of data. GeoID-OCEAN contributed to the implementation of the prototype processing chain.

References :
- Descloitres, J.; Minghelli, A.; Steinmetz, F.; Chevalier, C.; Chami, M.; Berline, L. Revisited Estimation of Moderate Resolution Sargassum Fractional Coverage Using Decametric Satellite Data (S2-MSI). Remote Sens. 2021, 13, 5106. https://doi.org/10.3390/rs13245106 
- Podlejski, W.  et al. (2022) Filtering out false Sargassum detections using context features. Frontiers in Marine Science. 9:960939. https://doi.org/10.3389/fmars.2022.960939</gmd:LocalisedCharacterString>
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