Ongoing actions within the project have the following objectives: (1) to generate time series of ocean color observations describing the dynamics of key biogeochemical parameters in French coastal waters using refined inversion algorithms adapted to past and recent ocean color sensors (SeaWiFS, MODIS, MERIS, and OLI, Sentinel 2-3-MSI-OLCI); (2) to characterize and compare the spatial and temporal variations observed using the national consortium of coastal monitoring field stations and using ocean color satellite observations (notably to determine how representative are the in situ observations provided by the national field network of coastal stations; and (3) to define new methods to optimize the use of field and satellite data to minimize the limits of each observation technique and highlight the complementarity of the observation methods (e.g., surface vs vertical scales to estimate stocks, high frequency at local scale vs. high spatial coverage).
