AUTHOR=Sanchez-Arcilla Agustin , Staneva Joanna , Cavaleri Luigi , Badger Merete , Bidlot Jean , Sorensen Jacob T. , Hansen Lars B. , Martin Adrien , Saulter Andy , Espino Manuel , Miglietta Mario M. , Mestres Marc , Bonaldo Davide , Pezzutto Paolo , Schulz-Stellenfleth Johannes , Wiese Anne , Larsen Xiaoli , Carniel Sandro , Bolaños Rodolfo , Abdalla Saleh , Tiesi Alessandro TITLE=CMEMS-Based Coastal Analyses: Conditioning, Coupling and Limits for Applications JOURNAL=Frontiers in Marine Science VOLUME=8 YEAR=2021 URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2021.604741 DOI=10.3389/fmars.2021.604741 ISSN=2296-7745 ABSTRACT=

Recent advances in numerical modeling, satellite data, and coastal processes, together with the rapid evolution of CMEMS products and the increasing pressures on coastal zones, suggest the timeliness of extending such products toward the coast. The CEASELESS EU H2020 project combines Sentinel and in-situ data with high-resolution models to predict coastal hydrodynamics at a variety of scales, according to stakeholder requirements. These predictions explicitly introduce land discharges into coastal oceanography, addressing local conditioning, assimilation memory and anisotropic error metrics taking into account the limited size of coastal domains. This article presents and discusses the advances achieved by CEASELESS in exploring the performance of coastal models, considering model resolution and domain scales, and assessing error generation and propagation. The project has also evaluated how underlying model uncertainties can be treated to comply with stakeholder requirements for a variety of applications, from storm-induced risks to aquaculture, from renewable energy to water quality. This has led to the refinement of a set of demonstrative applications, supported by a software environment able to provide met-ocean data on demand. The article ends with some remarks on the scientific, technical and application limits for CMEMS-based coastal products and how these products may be used to drive the extension of CMEMS toward the coast, promoting a wider uptake of CMEMS-based predictions.