Author(s): Jared Ortiz-Angulo; Paula Camus; Fernando Mendez; Sonia Castanedo; Mirian Jimenez; Laura Cagigal; Beatriz Perez-Diaz
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Abstract: The statistical distribution of compound flooding extents at coastal river deltas is the result of the non-linear interaction and co-occurrence of combination of multiple oceanographic, hydrologic, geologic and meteorological forcings (e. g. astronomical tides, monthly mean sea level, large-scale storm surge, dynamic wave set-up, river discharge, surface runoff). To address this complex problem and to manage with models that are highly computationally expensive, we propose a hybrid statistical-dynamical framework approach that combines: (a) climate-based statistical downscaling techniques; (b) a new version of the climate-based emulator TESLA (Cagigal et al., 2020); and (c) a metamodel based on Delft3D simulations. The proposed framework has been tested at the Santona Estuary, or estuary of the river Ason, located in the northern Spain.
Year: 2024