Photographies aériennes de la Côte Ouest du Cotentin réalisées le 01 septembre 2011 dans le cadre du projet OGIVE (Outils d’aide à la Gestion Intégrée et à la Valorisation des Ecosystèmes conchylicoles, 2005-2013). Les photographies ont été prises pendant les grandes marées de la fin de l’été en parallèle de l’échantillonnage de terrain (Coefficient de marée 105)

Map of average monthly non-algal suspended matter carried out in the period 2003-2010. TSS are estimated from the water reflectance using a specific algorithm developed at Ifremer.

Spatial distribution of all oxygen data in degrees integrated vertically and horizontally for all sub-regions of the English Channel, the North Sea, the Celtic Seas and the Bay of Biscay.

-- Court résumé explicatif du contenu de la ressource --

The statistical analysis used (Principal Component Analysis followed by a classification method) to identify groups common to all months and describe the evolution of these groups during the year. The data used allows for monthly tables showing the selected parameters, calculated over the entire geographic area with a resolution of 0.1 °. This method identifies 10 hydrological landscapes present at various times of the year, and characterized by homogeneous hydrological conditions.

The distribution of hydrological landscapes is determined by a method of comparing multi-tables, to identify groups of individuals with similar variability of hydrological conditions during the year. The data used provides monthly tables showing the five selected physical parameters (SS, Phi, SST, MES et CHLA), calculated over the entire geographical area, a common resolution of 0.05°. This method identifies 10 hydrological landscapes showing a similar annual variability of hydrological conditions.

Species distribution is provided as a layer of points representing in situ observations of organisms during submersible dives into the canyons of the Mediterranean mainland.

Monthly maps of mean chlorophyll-a achieved over the period 2003-2010. Chlorophyll-a is calculated using the OC5 algorithm developed by Ifremer.

Species distribution is provided as a layer of points representing in situ observations of organisms observed during dives submersible into the canyons in the Mediterranean mainland.

-- Court résumé explicatif du contenu de la ressource --