Spatial and Seasonal Distributions of Frontal Activity over the Continental Shelf in the Bay of Biscay Focus on Density Fronts in Winter

International audienceAIMS: Describing spatial and seasonal distributions of frontal activity over the continental shelf in the Bay of Biscay.Investigating the wintertime mid-shelf fronts in vicinity of the river plumes.Exploring the physical dynamics and the existence of baroclinic instabilities in such fronts from a scale decomposition of the vertical buoyancy flux