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Communication Dans Un Congrès Année : 2024

Re-analysis of extreme sea state events modelling using a data-driven technique

Résumé

With the objective of better answering marine and coastal engineering needs, sea state databases are created by hindcast simulations over long periods. The wave hindcast ANEMOC-3 database, built using the spectral model TOMAWAC for wave generation and propagation and the hydrodynamic circulation model TELEMAC-2D for tidal water levels and currents calculation, covers a period of 45 years from 1979 to 2023. During the calibration of the database, the numerical results must be consistent with past observational data (in situ or satellite measurements). Among other things, this process relies on calibration to determine “empirical adequacy” (Oreskes et al., 1994). In particular, the calibration aims at simulating a series of reference events by adjusting some uncertain physically-based model parameters until the agreement with available data reaches a satisfactory level. The objective of this work is to implement an efficient calibration algorithm, capable of processing measurements optimally, and of estimating the partially known parameters in the numerical model.
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Dates et versions

hal-04618518 , version 1 (20-06-2024)

Identifiants

  • HAL Id : hal-04618518 , version 1

Citer

Cédric Goeury, Fouquet Thierry, Bagnis Tristan, Benoit Michel, Teles Maria. Re-analysis of extreme sea state events modelling using a data-driven technique. 8th IAHR EUROPE CONGRESS, International Association for hydro-Environment Engineering and Research, Jun 2024, Lisbon, Portugal. ⟨hal-04618518⟩

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