Topic
 

oceans

679 record(s)
 
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From 1 - 10 / 679
  • 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).

  • Seabed habitat map (EUNIS classification system) performed by Stareso 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 (2010-2011), orthos (2010-2011), historical data (Guennoc et al., 2000; Pasqualini, 1997) Ground truth data sources (2008-2012): diving, sea-viewer Map confidence rated by Ifremer : 89%

  • Seabed habitat map (Habitat Directive) performed by IN VIVO within the framework of CARTHAM ("cartographie des habitats marins") project coordinated by the French Biodiversity Agency (Agence française pour la biodiversité, AFB). Map confidence rated by Ifremer : 57%

  • Seabed habitat map (EUNIS classification system) performed by Andromede Oceanologie 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 (2011), bathymetric datas (2009), orthophotos (2009, 2007) Ground truth data sources : Van Veen grab (2011), diver (2012), direct human observation (2012). Map confidence rated by Ifremer : 91% (Areas with doubtful classification and/or outlines are mentioned in the "VAL_COMM" field.

  • 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 (Habitat Directive classification system) performed by Stareso 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 (2010-2011), orthos (2010-2011), historical data (Cancemi et al., 2005; Pasqualini, 1997) Ground truth data sources (1996-2012): diving, sea-viewer, direct human observations, ROV Map confidence rated by Ifremer : 73%

  • Seabed habitat map (Habitat Directiveclassification system) performed by Andromede Oceanologie 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 (2012, 2010, 2007), bathymetric datas (2007-2010), orthophotos (2009), historical data (2007), GPS (04/2012, 06/2010). Ground truth data sources (2010-2012) : Diving, sea-viewer. Map confidence rated by Ifremer : 81%.

  • Seabed habitat map (EUNIS classification system) performed by Sintinelle within the framework of CARTHAM ("cartographie des habitats marins") project coordinated by the French Biodiversity Agency (Agence française pour la biodiversité, AFB). Method used: supervised classification using ground truth data (2011-2012; diving, ROV, direct human observations, sea-viewer) and orthophotos (2010-04-08, 2009-08, 2007) and updating historical maps (2001, 1997). Map confidence rated by Ifremer : 82%

  • Seabed habitat map (Habitat Directive classification system) performed by Andromede Oceanologie 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 (2011), bathymetric datas (2009), orthophotos (2009, 2007) Ground truth data sources : Diver (2012), direct human observation (2012). Map confidence rated by Ifremer : 82%

  • Seabed habitat map (Habitat Directive classification system) performed by Stareso 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 (2010-2011), historical data (Guennoc et al., 2001; Pasqualini, 1997) Ground truth data sources: none Map confidence rated by Ifremer : 50%