Dynamical diagnostic of extreme events in Venice lagoon and their mitigation with the MoSE

Extreme events are becoming more frequent due to anthropogenic climate change, posing serious concerns on societal and economic impacts and asking for mitigating strategies, as for Venice. Here we proposed a dynamical diagnostic of Extreme Sea Level (ESL) events in the Venice lagoon by using two ind...

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Bibliographic Details
Published inScientific reports Vol. 13; no. 1; p. 10475
Main Authors Alberti, Tommaso, Anzidei, Marco, Faranda, Davide, Vecchio, Antonio, Favaro, Marco, Papa, Alvise
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 28.06.2023
Nature Publishing Group
Nature Portfolio
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Summary:Extreme events are becoming more frequent due to anthropogenic climate change, posing serious concerns on societal and economic impacts and asking for mitigating strategies, as for Venice. Here we proposed a dynamical diagnostic of Extreme Sea Level (ESL) events in the Venice lagoon by using two indicators based on combining extreme value theory and dynamical systems: the instantaneous dimension and the inverse persistence. We show that the latter allows us to localize ESL events with respect to sea level fluctuations around the astronomical tide, while the former informs us on the role of active processes across the lagoon and specifically on the constructive interference of atmospheric contributions with the astronomical tide. We further examined the capability of the MoSE (Experimental Electromechanical Module), a safeguarding system recently put into operation, in mitigating extreme flooding events in relation with the values of the two dynamical indicators. We show that the MoSE acts on the inverse persistence in reducing/controlling the amplitude of sea level fluctuation and provide a valuable support for mitigating ESL events if operating, in a full operational mode, at least several hours before the occurrence an event.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-023-36816-8