Grading the quality of metropolitan coastal bathing waters in 2010 from the Department of Health. Data collected from the Ministry of Health as part of the initial assessment of the MSFD. Referent expert: Aurélie Blanck.

Zones corresponding to the delimitation of major watersheds and related marine areas in the Seine-Normandy basin for the assessment of pressures on the different water masses on the Normandy coast and marine sub region English Channel - North Sea. Nutrient discharges from industries and communities.

Validated and aggregated data from current profilers measured continuously by hull-mounted ADCPs (Acoustic Doppler Current Profiler).

Physico-chemical monitoring stations are part of a network under the responsibility of the water agencies. Regarding the scope of strict thematic contribution "Hydrology," the monitoring stations do not come into account because they only measure the physico-chemical quality of the rivers. These stations are used only for calculations under fluvial inputs of pollutants / nutrients.

Under the EU Water Framework Directive (2000/60/EC), among the biological parameters involved in the assessment of coastal water bodies, the quality element "phytoplankton" is defined. This indicator Phytoplankton is made up of several indexes including a biomass index and an abundance index. Oxygen balance appearing among the elements of physicochemical quality selected for the classification of the ecological state of coastal water bodies. The quality element "benthic invertebrates" is also part of the biological parameters involved in the assessment of these water bodies.

Couche surfacique de référence, représentative de la géographie des enceintes de postes tracées à partir des limites de clôtures. Le tracé en Lambert 93 (projection associée au système géodésique RGF93), est obtenu au moyen d'un plan numérique géoréférencé ou d'une convention RTE/IGN.

L'hydrodynamisme est cartographié via la tension de cisaillement au fond sur 31 des 36 lagunes méditerranéennes françaises classées "Masses d'eau de transition" au titre de la DCE. Elle est approximée à partir de la profondeur, de la distance à la côte et de la direction moyenne et intensité moyenne du vent la période printemps-été 2012-2017.

Cartes historiques établies à l’échelle du 1/50 000 et constituées dans les années 1970; cartes scannées sur le département du Nord. ((Scan nt) S:\cartes historiques\années 70)