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  • Seabed habitat map ('Typologie des biocenoses de Mediterranee' classification system) performed by GIS Posidonie within the framework of CARTHAM ("cartographie des habitats marins") project coordinated by the French Biodiversity Agency (Agence française pour la biodiversité, AFB). Digital data sources : Side scan sonar (2010), bathymetrics (2008). Ground truth data sources : Sediment dredge (1 point, 2010) Map confidence rated by Ifremer : 72% (Habitat : 'vase'; Areas with doubtful outlines).

  • Seabed habitat map (EUNIS classification system) performed by GIS Posidonie within the framework of CARTHAM ("cartographie des habitats marins") project coordinated by the French Biodiversity Agency (Agence française pour la biodiversité, AFB). Digital data sources : Side scan sonar (2010), bathymetrics (2010, 2008, 2001), orthophotos (2008), historical maps (2004-2006). Ground truth data sources (2009-2011) : Divers with underwater cameras, ROV, Smith McIntyre grab, sediment dredges. Map confidence rated by Ifremer : 91% (Areas with doubtful outlines are mentioned in the "VAL_COMM" field ).

  • Seabed habitat map (Habitat Directive classification system) performed by GIS Posidonie within the framework of CARTHAM ("cartographie des habitats marins") project coordinated by the French Biodiversity Agency (Agence française pour la biodiversité, AFB). Digital data sources : Side scan sonar (2010), bathymetrics (2008), historical maps (2004-2006). Ground truth data sources : Historical dives data Map confidence rated by Ifremer : 58% (Habitat : 1110; Areas with doubtful outlines and/or classification are mentioned in the "VAL_COMM" field ).

  • Seabed habitat map (EUNIS habitat classification system) performed by In GIS Posidonie within the framework of CARTHAM ("cartographie des habitats marins") project coordinated by the French Biodiversity Agency (Agence française pour la biodiversité, AFB). Digital data sources : Side scan sonar (2010), digital elevation model (2010, 2005), orthophotos 2008, satellite images (2010), historic habitat maps (1965). Ground truth data sources (2010) : Divers with underwater cameras (3 points), ROV (1). Map confidence rated by Ifremer : 69% (Areas with doubtful classification and outlines).

  • Seabed habitat map (EUNIS classification system) performed by GIS Posidonie within the framework of CARTHAM ("cartographie des habitats marins") project coordinated by the French Biodiversity Agency (Agence française pour la biodiversité, AFB). Digital data sources : Sonar (2011, 2010, 2003), bathymetrics (2008, 1996), orthophotos (2008), historical maps (2004-2006). Ground truth data sources (2005, 2003) : Historical dives data. Map confidence rated by Ifremer : 67% (Doubtful classification and outlines).

  • Seabed habitat map (habitats directive classification system) performed by GIS Posidonie within the framework of CARTHAM ("cartographie des habitats marins") project coordinated by the French Biodiversity Agency (Agence française pour la biodiversité, AFB). Digital data sources : Side scan sonar (2010), digital elevation model (2010), orthophotos 2008, satellite images (2010). Ground truth data sources (2010) : Divers with underwater cameras (3 points). Map confidence rated by Ifremer : 89% (doubtful outlines).

  • Seabed habitat map (EUNIS habitat classification system) performed by GIS Posidonie within the framework of CARTHAM ("cartographie des habitats marins") project coordinated by the French Biodiversity Agency (Agence française pour la biodiversité, AFB). Digital data sources : Side scan sonar (2010), digital elevation model (2010), orthophotos 2008, satellite images (2010), historic habitat maps (1965). Ground truth data sources (2010) : Divers with underwater cameras (37 points), ROV (9). Map confidence rated by Ifremer : 89% (Areas with doubtful outlines are mentioned in the "VAL_COMM" field).