System Vicarious Calibration for Climate and Global Long-Term Operational Ocean Color Applications
Zibordi, Giuseppe ; Johnson, B. Carol ; Kwiatkowska, Ewa ; Voss, Kenneth J. ; Antoine, David ; Barnard, Andrew ; Barnes, Brian B. ; Mélin, Frédéric ; Wang, Menghua ; Bialek, Agnieszka ; Bailey, Sean ; Chen, Shuguo
System vicarious calibration (SVC) enhances the accuracy of satellite ocean color radiometric data products by removing the bias due to the intrinsic inaccuracies affecting both the responsivity of the space sensor and the correction for the atmospheric and sea surface contributions to the measured signal. Various SVC procedures have been implemented and applied for regional studies, specific mission goals, and the most challenging quantification of global long-term climate-driven changes that require accurate and consistent data products across multiple missions. This paper summarizes the outcome of a workshop organized by the ocean color SVC task force of the International Ocean Color Coordinating Group (IOCCG) to review requirements for SVC supporting ocean color missions for climate and global long-term operational applications. The work emphasizes the essential need for long-term sustained SVC infrastructures and associated services, summarizes the primary requirements for establishing a comprehensive ocean color SVC framework, and provides directions for new investigations to tackle arising needs on SVC advancements and methods.</p>
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