Preprints
https://doi.org/10.5194/nhess-2022-67
https://doi.org/10.5194/nhess-2022-67
 
14 Mar 2022
14 Mar 2022
Status: this preprint is currently under review for the journal NHESS.

A coupled modelling system to assess the effect of Mediterranean storms under climate change

Riccardo Alvise Mel1,2, Teresa Lo Feudo3, Massimo Miceli1, Salvatore Sinopoli1,2, and Mario Maiolo1,2 Riccardo Alvise Mel et al.
  • 1Department of Environmental Engineering, University of Calabria, Arcavacata di Rende (CS), 87036, Italy
  • 2Capo Tirone Experimental Marine Station, University of Calabria, Arcavacata di Rende (CS), 87036, Italy
  • 3Institute of Atmospheric Sciences and Climate (CNR-ISAC), Lamezia Terme (CZ), 88046, Italy

Abstract. Climate change will have an undeniable influence on coastal areas. In the last decades, the impact of storm surges has promoted multiple mitigation and adaptation strategies worldwide, including more robust sea defenses, development of integrated modelling chains and warning systems, and improved storm impact management. However, as climate change seems likely to result in increased rates of both sea level rise and storm-related impacts, it is crucial to estimate the local probable extreme sea wave conditions, to properly reproduce the wave and hydrodynamic inshore field, and to investigate the effectiveness of sea defenses under different sea level rise scenarios. This work describes the first steps towards an innovative fully coupled modelling system composed of a hydrodynamic (2DEF) and wind wave model (SWAN). The models are two-way coupled at half-hourly intervals exchanging the following fields: 2D sea level, surface currents and bottom elevation are transferred from 2DEF to SWAN; wave climate computed by SWAN is then passed to 2DEF by modifying the radiation stress. Numerical simulations have been performed to identify the impact of extreme storms at Calabaia beach, Italy, by combining sea level rise and extreme wave projections with the most recent georeferenced territorial data.

Riccardo Alvise Mel et al.

Status: open (until 02 Jun 2022)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on nhess-2022-67', Anonymous Referee #1, 16 Mar 2022 reply
  • RC2: 'Comment on nhess-2022-67', Anonymous Referee #2, 24 May 2022 reply

Riccardo Alvise Mel et al.

Riccardo Alvise Mel et al.

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Short summary
In this work we present a coupled modelling system to compute the wind climate and the hydrodynamic two-dimensional field in coastal areas, with particular reference to the Marine Experimental Station of Capo Tirone (Italy). We combined sea level rise and extreme storm projections with the most recent georeferenced territorial data.
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