The DTM is a compilation of multibeam echosounder surveys acquired in 2013. The resolution is 1/64 arc-minutes (~30m). Surveys are located on the Capbreton Submarine Canyon (France) with depths from -4.7m to -344.9m. Depths are referenced to the Lowest Astronomical Tide and the coordinates are expressed into the WGS84 reference frame. The surveys which compose the DTM are S201306500-09 and S201306500-11. Data and metadata associated to these surveys are available on the website http://diffusion.shom.fr/pro/lots-bathy.html. The DTM is not to be used for navigation.

The Digital Terrain Model of the Bay of Biscaye and of the Channel is the result of the processing of a compilation of single and multibeam echosounder data, of DTMs and of chart countours produced before 2008 for hydrodynamic modeling.

The Coastal Zones (CZ) LC/LU product for 2018 is providing a detailed Land Cover / Land Use (LC/ LU) dataset for areas along the coastline of the EEA38 countries and the United Kingdom, with reference year 2018 for the classification. This product monitors landscape dynamics in European coastal territory to an inland depth of 10 km with a total area of approximately 730,000 km², with all the relevant areas (estuaries, coastal lowlands, nature reserves). The production of the coastal zone layers was coordinated by the European Environment Agency (EEA) in the frame of the EU Copernicus programme, as part of the Copernicus Land Monitoring Service (CLMS) Local Component. The Coastal Zones product covers a buffer zone of coastline derived from EU-Hydro v1.1. Land Cover/Land Use (LC/LU) layer is extracted from Very High Resolution (VHR) satellite data and other available data. The class definitions follow the pre-defined nomenclature on the basis of Mapping and Assessment of Ecosystems and their Services (MAES) typology of ecosystems (Level 1 to Level 4) and CORINE Land Cover adapted to the specific characteristics of coastal zones. The classification provides 71 distinct thematic classes with a Minimum Mapping Unit (MMU) of 0.5 ha and a Minimum Mapping Width (MMW) of 10 m. The product is available for the 2012 and 2018 reference year including change mapping. This CZ dataset is distributed in vector format, in a single OGC GeoPackage SQLite file covering the area of interest. You can read more about the product here: https://land.copernicus.eu/en/products/coastal-zones/coastal-zones-2018.

The Coastal Zones LC/LU Change (CZC) 2012-2018 is providing the Land Cover / Land Use (LC/ LU) change for areas along the coastline of the EEA38 countries and the United Kingdom, between the reference years 2012 and 2018. The Coastal Zones product monitors landscape dynamics in European coastal territory to an inland depth of 10 km with a total area of approximately 730,000 km², with all the relevant areas (estuaries, coastal lowlands, nature reserves). The production of the coastal zone layers was coordinated by the European Environment Agency (EEA) in the frame of the EU Copernicus programme, as part of the Copernicus Land Monitoring Service (CLMS) Local Component. The Coastal Zones Change product covers a buffer zone of coastline derived from EU-Hydro v1.1. The Land Cover/Land Use (LC/LU) Change layer is extracted from Very High Resolution (VHR) satellite data and other available data. The reference years for the change are 2012 and 2018. The class definitions follow the pre-defined nomenclature on the basis of Mapping and Assessment of Ecosystems and their Services (MAES) typology of ecosystems (Level 1 to Level 4) and CORINE Land Cover adapted to the specific characteristics of coastal zones. The classification provides 71 distinct thematic classes with a Minimum Mapping Unit (MMU) of 0.5 ha and a Minimum Mapping Width (MMW) of 10 m. The status product is available for the 2012 and 2018 reference years. This CZC dataset is distributed in vector format, in a single OGC GeoPackage file covering the area of interest. You can read more about the product here: https://land.copernicus.eu/en/products/coastal-zones/coastal-zones-change-2012-2018.

The Coastal Zones (CZ) LC/LU product for 2012 is providing a detailed Land Cover / Land Use (LC/ LU) dataset for areas along the coastline of the EEA38 countries and the United Kingdom, with reference year 2012 for the classification. This product monitors landscape dynamics in European coastal territory to an inland depth of 10 km with a total area of approximately 730,000 km², with all the relevant areas (estuaries, coastal lowlands, nature reserves). The production of the coastal zone layers was coordinated by the European Environment Agency (EEA) in the frame of the EU Copernicus programme, as part of the Copernicus Land Monitoring Service (CLMS) Local Component. The Coastal Zones product covers a buffer zone of coastline derived from EU-Hydro v1.1. Land Cover/Land Use (LC/LU) layer is extracted from Very High Resolution (VHR) satellite data and other available data. The class definitions follow the pre-defined nomenclature on the basis of Mapping and Assessment of Ecosystems and their Services (MAES) typology of ecosystems (Level 1 to Level 4) and CORINE Land Cover adapted to the specific characteristics of coastal zones. The classification provides 71 distinct thematic classes with a Minimum Mapping Unit (MMU) of 0.5 ha and a Minimum Mapping Width (MMW) of 10 m. The product is available for the 2012 and 2018 reference year including change mapping. This CZ dataset is distributed in vector format, in a single OGC GeoPackage SQLite file covering the area of interest. You can read more about the product here: https://land.copernicus.eu/en/products/coastal-zones/coastal-zones-2012.

Cette cartographie des espèces d'algues exploitables de Belle-Ile-en-Mer constitue la synthèse des études menées par R. Kaas et O. Barbaroux d'Ifremer en 2001. C'est une communication directe des auteurs. Pour cette étude, des prospections de terrain ont été réalisées par cabotage le long de l'île.

Retombées atmosphériques totales en g/km²/an et concentrations moyennes dans l'air en ng/mm3 de métaux lourds et polluants organiques persistents dans les sous-régions marines Manche-mer du Nord, Méditerranée occidentale, mers Celtiques et golfe de Gascogne pour les années 2010, 2013 et 2014. Cette donnée a été collectée sur le site web du programme EMEP MSC-E (Meteorological Synthesizing Centre East). Résolution par mailles de 50x50km.

Scan géoréférencé de la carte morpho-sédimentaire du platin de Grave, dans l'embouchure de la Gironde. Edition 1986. Echelle 1/10 000. Campagne océanographique à l'origine de cette carte : - BERNE Serge (1984) FASEC-1 cruise, RV Cote D'Aquitaine, https://doi.org/10.17600/84012111 Référence bibliographique : BERNÉ S., BRAUD F., WEBER O. (1986) - Platin de Grave (Gironde), mosaïque sonar latéral, échelle 1/5 000. 2 cartes interprétatives, échelle 1/10 000 et une notice explicative. Ed. Ifremer.

Ce jeu présente les données surfaciques du Schéma d'aménagement et de gestion de l'eau (SAGE) accompagnées des détails sur leur état d'avancement (Emergence ; Instruction ; Elaboration ; Mise en oeuvre ; Première révision) valides au 01/01/2017. Le schéma d'aménagement et de gestion de l'eau (SAGE) est un outil de planification, institué par la loi sur l'eau de 1992, visant la gestion équilibrée et durable de la ressource en eau. Déclinaison du SDAGE à une échelle plus locale, il vise à concilier la satisfaction et le développement des différents usages (eau potable, industrie, agriculture, ...) et la protection des milieux aquatiques, en tenant compte des spécificités d'un territoire. Délimité selon des critères naturels, il concerne un bassin versant hydrographique ou une nappe. Il repose sur une démarche volontaire de concertation avec les acteurs locaux.

L’analyse porte sur le suivi des peuplements de macroalgues de blooms responsables des marées vertes dans les masses d'eaux côtières et de transition de la Manche ouest et du golfe de Gascogne. Les macroalgues opportunistes sont suivies par photographies aériennes dans les masses d’eau présentant des marées vertes à ulves dérivantes dans les système sableux et ouverts et des marées vertes de vasières dans les systèmes vaseux et enclavés. Le classement des masses d’eau repose sur : - les pourcentages maximum et moyen de l’aire colonisable recouverte par les algues vertes - l’aire affectée et la fréquence les dépôts algaux. L’évaluation la plus récente de ces marées vertes est présentée dans l’atlas DCE Loire-Bretagne. Les états antérieurs sont accessibles dans des archives annuelles