DIAGNOSE, INTERPRET, MONITOR UPPER OCEAN CIRCULATION: NOVEL DATA SYNERGIES VIA DYNAMICAL EXPLORATION
PI and organization: Fabrice Collard (Ocean Data Lab).
Co-Is: Lucile Gaultier (Ocean Data Lab), Erwan Hascoët (Ocean Data Lab).
Steering committee: Aurélien Ponte (IFREMER), Patrice Klein (IFREMER), Joe LaCasce (Univ. Oslo), Bertrand Chapron (IFREMER), Vladimir Kudriavtsev (Univ. St Petersburg).
Abstract: The main objectives of this proposal are to develop and apply innovative methods that infer, from satellite and in situ observations, the state of the upper ocean and associated horizontal and vertical fluxes of tracers and energy. These methods leverage an a priori knowledge of the dynamics (embedding in a quasi-geostrophic mesoscale eddy field topped by a turbulent mixed-layer) whose validation, in terms of spatio-temporal scales and background environmental conditions, represent the cornerstone of the proposal. This project directly addresses the R&D priority 4.6 (“Sub-mesoscale- mesoscale interactions and processes”) of the CMEMS Service Evolution Strategy, and will contribute to the R&D priority 4.2 (“From big data streams to high-level data products “) through the development of new products and physical diagnostics. Several very high resolution basin scale numerical simulations have recently suggested the strong dynamical impact of fine scale (below the Rossby deformation radius) ocean processes. In this context, we propose to thoroughly assess the role and observability of these fine scales by an approach combining remote sensing, realistic high-resolution modelling and idealized dynamical models. This effort will provide CMEMS with dedicated practical tools and improved products to better resolve these scales.