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Article

Coastal Modification in Relation to Sea Storm Effects: Application of 3D Remote Sensing Survey in Sanremo Marina (Liguria, NW Italy)

1
Geomatics Laboratory, Department of Civil, Chemical and Environmental Engineering (DICCA), University of Genoa, 16145 Genoa, Italy
2
Department of Earth, Environment and Life Sciences (DiSTAV), University of Genoa, 16132 Genoa, Italy
3
Drafinsub Survey, 16126 Genoa, Italy
4
National Research Group for Coastal Environment (GNRAC), 16132 Genoa, Italy
*
Author to whom correspondence should be addressed.
Academic Editors: Giorgio Anfuso and Elias Dimitriou
Water 2021, 13(8), 1040; https://doi.org/10.3390/w13081040
Received: 1 March 2021 / Revised: 1 April 2021 / Accepted: 6 April 2021 / Published: 9 April 2021
(This article belongs to the Special Issue Relative Sea-Level Changes and their Impact on Coastal Zones)
Integrated remote sensing techniques, such as photogrammetry from unmanned aerial vehicles (UAV), mobile laser scanners (MLS) and multibeam echosounders (MBES), are particularly effective in detecting and measuring coastal and seabed features and their modifications over time (4D analysis) induced by sea storms. In fact, these techniques allow the production of very high-resolution 3D models, with a continuum between above and below sea level. The present research is focused on the area of Portosole Marina (Sanremo, Western Liguria), affected by a severe sea storm in October 2018 and the following restoration. Two integrated 3D surveys were performed in February 2019 and in November 2019, obtaining accurate and reliable high-definition digital surface models (DSMs) in both emerged and submerged areas. The comparison between the two surveys highlighted volumetric changes in the seabed induced by the sea storm and the effects of a temporary worksite on the emerged and submerged breakwater. In particular, a total deficit of sediments of about 5000 m3 caused an average lowering of about 4 cm over the entire area, concurring with the breakwater instability. This study aims to contribute to the understanding of coastal system resilience within ongoing global climate changes, that is, increasing the intensity of extreme events in the Mediterranean area. View Full-Text
Keywords: geomorphological coastal changes; sea storm effects; integrated 3D remote sensing surveys; sedimentary dynamics; western Ligurian sea geomorphological coastal changes; sea storm effects; integrated 3D remote sensing surveys; sedimentary dynamics; western Ligurian sea
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MDPI and ACS Style

Ferrando, I.; Brandolini, P.; Federici, B.; Lucarelli, A.; Sguerso, D.; Morelli, D.; Corradi, N. Coastal Modification in Relation to Sea Storm Effects: Application of 3D Remote Sensing Survey in Sanremo Marina (Liguria, NW Italy). Water 2021, 13, 1040. https://doi.org/10.3390/w13081040

AMA Style

Ferrando I, Brandolini P, Federici B, Lucarelli A, Sguerso D, Morelli D, Corradi N. Coastal Modification in Relation to Sea Storm Effects: Application of 3D Remote Sensing Survey in Sanremo Marina (Liguria, NW Italy). Water. 2021; 13(8):1040. https://doi.org/10.3390/w13081040

Chicago/Turabian Style

Ferrando, Ilaria; Brandolini, Pierluigi; Federici, Bianca; Lucarelli, Antonio; Sguerso, Domenico; Morelli, Danilo; Corradi, Nicola. 2021. "Coastal Modification in Relation to Sea Storm Effects: Application of 3D Remote Sensing Survey in Sanremo Marina (Liguria, NW Italy)" Water 13, no. 8: 1040. https://doi.org/10.3390/w13081040

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