To ensure the capability to perform ground-based measurements of ocean color parameters traceable to SI standards, CIMA took part to the field experiment organized by ESA within the “Fiducial Reference Measurements for Satellite Ocean Colour” project.
The Sentinel-2 and Sentinel-3 satellites are main assets of the Copernicus EU program for the monitoring of the marine environment (https://www.esa.int/Our_Activities/Observing_the_Earth/Copernicus). Acknowledging that the quality assurance of space-born data products is fundamental to the success of these space missions, the European Space Agency has established the “Fiducial Reference Measurements for Satellite Ocean Colour” project (FRM4SOC) (https://frm4soc.org/).
Within FRM4SOC activities, a radiometric inter-comparison exercise took place at the Acqua Alta Oceanographic Tower off the Gulf of Venice, Italy, in the northern Adriatic Sea from 8th to 18th July 2018. The field work has seen the participation of selected research scientists from Europe and Canada for the simultaneous data collection with in- and above-water water radiometers (https://frm4soc.org/index.php/activities/fice/).
During the inter-comparison CIMA deployed its "Ramses Optical System" equipment, acquired to perform the ocean color remote sensing studies within the Remote “Sensing Monitoring of the Atlantic off Portugal” project (RESMAP, reference number IF/00541/2013). To fully ensure the system performance, in 2017 CIMA also joined the Laboratory inter-comparison activity hosted by Tartu Observatory, Estonia (https://frm4soc.org/index.php/international-si-traceable-comparison-exercise-to-verify-the-performance-of-field-ocean-colour-radiometers-frm4soc-lce2/).
These commitments, mandatory to document the CIMA capability to perform ground-based measurements of ocean color parameters traceable to SI standards, complement the field data collection that CIMA has been undertaking in the last years for the retrieval of customized ocean color data products in the Atlantic off Portugal.
D. D’Alimonte, T. Kajiyama, C. Sá, and V. Brotas, “Collection, analysis and on-line experimentation of ocean color remote sensing data: An appraisal off the southwestern iberian peninsula,” in 2017 4th Experiment@International Conference (exp.at’17), June 2017, pp. 71–76.