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Article

Shoreline Response to Wave Forcing and Sea Level Rise along a Geomorphological Complex Coastline (Western Sardinia, Mediterranean Sea)

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Istituto per lo Studio degli Impatti Antropici e Sostenibilità in Ambiente Marino—Località Sa Mardini, 09072 Torregrande Oristano, Italy
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Fondazione IMC—Centro Marino Internazionale—ONLUS—Località Sa Mardini, 09072 Torregrande Oristano, Italy
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Dipartimento di Scienze Ambientali, Informatica e Statistica, Università Ca’ Foscari, 30172 Venice, Italy
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Author to whom correspondence should be addressed.
Academic Editor: Edoardo Rotigliano
Appl. Sci. 2021, 11(9), 4009; https://doi.org/10.3390/app11094009
Received: 30 March 2021 / Revised: 21 April 2021 / Accepted: 25 April 2021 / Published: 28 April 2021
(This article belongs to the Special Issue Mediterranean Beach Morphodynamics under Climate Change)
Beaches responses to storms, as well as their potential adaptation to the foreseeable sea level rise (SLR), were investigated along three beaches in a coastal tract in western Sardinia (Western Mediterranean Sea). The grain size of the sediments, the beach profile variability and the wave climate were analyzed in order to relate morphological changes, geological inheritances and waves forcing. Multibeam, single-beam and lidar data were used to characterize the inner shelf morphologies and to reproduce the flooding due to the SLR. The studied beaches experienced major changes when consecutive storms, rather than singles ones, occurred along the coastline. The sediment availability, the grain size and the geomorphological structure of the beaches were the most important factors influencing the beach response. On the sediment-deprived coarse beaches the headlands favor the beach rotation, and the gravel barrier morphology can increase the resistance against storms. On the sediment-abundant beaches, the cross-shore sediment transport towards a submerged area leads to a lowering in the subaerial beach level and a contemporaneous shoreline retreat in response to storms. A very limited ingression of the sea is related to the SLR. This process may affect (i) the gravel barrier, promoting a roll over due to the increase in overwash; (ii) the embayed beach increasing its degree of embayment as headlands become more prominent, and (iii) the sediment-abundant beach with an erosion of the whole subaerial beach during storms, which can also involve the foredune area. View Full-Text
Keywords: beaches; beach morphodynamic; sea level rise; Mediterranean Sea; geological control; wave climate beaches; beach morphodynamic; sea level rise; Mediterranean Sea; geological control; wave climate
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MDPI and ACS Style

Simeone, S.; Palombo, L.; Molinaroli, E.; Brambilla, W.; Conforti, A.; De Falco, G. Shoreline Response to Wave Forcing and Sea Level Rise along a Geomorphological Complex Coastline (Western Sardinia, Mediterranean Sea). Appl. Sci. 2021, 11, 4009. https://doi.org/10.3390/app11094009

AMA Style

Simeone S, Palombo L, Molinaroli E, Brambilla W, Conforti A, De Falco G. Shoreline Response to Wave Forcing and Sea Level Rise along a Geomorphological Complex Coastline (Western Sardinia, Mediterranean Sea). Applied Sciences. 2021; 11(9):4009. https://doi.org/10.3390/app11094009

Chicago/Turabian Style

Simeone, Simone, Luca Palombo, Emanuela Molinaroli, Walter Brambilla, Alessandro Conforti, and Giovanni De Falco. 2021. "Shoreline Response to Wave Forcing and Sea Level Rise along a Geomorphological Complex Coastline (Western Sardinia, Mediterranean Sea)" Applied Sciences 11, no. 9: 4009. https://doi.org/10.3390/app11094009

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