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Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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Discussion papers
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 09 Jul 2019

Submitted as: research article | 09 Jul 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Natural Hazards and Earth System Sciences (NHESS).

Integrated sea storm management strategy: the 29 October 2018 event in the Adriatic Sea

Christian Ferrarin1, Andrea Valentini2, Martin Vodopivec3, Dijana Klaric4, Giovanni Massaro5, Marco Bajo1, Francesca De Pascalis1, Amedeo Fadini1, Michol Ghezzo1, Stefano Menegon1, Lidia Bressan2, Silvia Unguendoli2, Anja Fettich3, Jure Jerman3, Matjaž Licer6, Lidija Fustar4, Alvise Papa5, and Enrico Carraro7 Christian Ferrarin et al.
  • 1CNR - National Research Council of Italy, ISMAR - Marine Sciences Institute, Venice, Italy
  • 2Arpae-SIMC - Agency for Prevention, Environment and Energy of Emilia-Romagna, Hydro-Meteo-Climate Service, Bologna, Italy
  • 3Slovenian Environment Agency, Ljubljana, Slovenia
  • 4Meteorological and Hydrological Service of Croatia, Zagreb, Croatia
  • 5Tide Forecast and Early Warning Center, City of Venice, Venice, Italy
  • 6National Institute of Biology, Ljubljana, Slovenia
  • 7City of Venice - European Policies, Venice, Italy

Abstract. Addressing coastal risks related to sea storms requires an integrative approach which combines monitoring stations, forecasting models, early warning systems and coastal management and planning. Such great effort is sometimes possible only through transnational cooperation, which becomes thus vital to face effectively and promptly these marine events which are responsible for several damages impacting on the environment and citizens' life. Here we present a shared and interoperable system to allow a better exchange and elaboration of information related to sea storms among countries. The proposed Integrated Web System (IWS) is a combination of a common data system for sharing ocean observations and forecasts, a multi-model ensemble system, a geoportal and interactive geo-visualization tools to make results available to the general public. Multi-model ensemble mean and spread for sea level height and wave characteristics are used to describe three different sea condition scenarios. IWS is designed to provide sea state information required for issuing coastal risk alerts over the analysed region, as well as for being easily integrated into existing local early warning systems. This study describes the application of the developed system to the exceptional storm event of 29th of October 2018, that caused severe flooding and damages to coastal infrastructures in the Adriatic Sea. The forecasted ensemble products were successfully compared with in situ observations. The hazards estimated by integrating IWS results into existing early warning systems were confirmed by documented storm impacts along the coast of Slovenia, Emilia-Romagna and the City of Venice. For the investigated event, the most severe simulated scenario resulted to provide a realistic and conservative estimation of the peak storm conditions to be used in coastal risk management.

Christian Ferrarin et al.
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Christian Ferrarin et al.
Christian Ferrarin et al.
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