RT journal article
T1 A global unstructured, coupled, high-resolution hindcast of waves and storm surge
A1 Mentaschi, Lorenzo
A1 Vousdoukas, Michalis
A1 García-Sánchez, G.
A1 Fernández Momblant, Tomás
A1 Roland, A.
A1 Voukouvalas, Evangelos
A1 Federico, I.
A1 Abdolali, A.
A1 Zhang, Y.J.
A1 Feyen, Luc
A2 Ciencias de la Tierra
K1 coastal hazard
K1 global ocean modelling
K1 high-resolution
K1 ocean waves
K1 SCHISM-WWMV
K1 storm surge
K1 unstructured grid
AB Accurate information on waves and storm surges is essential to understand coastal hazards that are expected to increase in view of global warming and rising sea levels. Despite the recent advancement in development and application of large-scale coastal models, nearshore processes are still not sufficiently resolved due to coarse resolutions, transferring errors to coastal risk assessments and other large-scale applications. Here we developed a 73-year hindcast of waves and storm surges on an unstructured mesh of >650,000 nodes with an unprecedented resolution of 2-4 km at the global coast. Our modelling system is based on the circulation model SCHISM that is fully coupled with the WWM-V (WindWaveModel) and is forced by surface winds, pressure, and ice coverage from the ERA5 reanalysis. Results are compared with observations from satellite altimeters, tidal gauges and buoys, and show good skill for both Sea Surface Height (SSH) and Significant Wave Height (Hs), and a much-improved ability to reproduce the nearshore dynamics compared with previous, lower-resolution studies. Besides SSH, the modelling system also produces a range of other wave-related fields at each node of the mesh with a time step of 3 hours, including the spectral parameters of the first three largest energy peaks. This dataset offers the potential for more accurate global-scale applications on coastal hazard and risk.
PB Frontiers Media SA
SN 2296-7745
YR 2023
FD 2023
LK http://hdl.handle.net/10498/32127
UL http://hdl.handle.net/10498/32127
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 10-may-2026