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Article

Trigno River Mouth Evolution via Littoral Drift Rose

1
Department of Civil and Environmental Engineering, University of Naples Federico II, Via Claudio, 21, 80125 Naples, Italy
2
Department of Biological, Geological and Environmental Sciences, University of Bologna, Via Zamboni, 33, 40126 Bologna, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Maria Mimikou
Water 2021, 13(21), 2995; https://doi.org/10.3390/w13212995
Received: 8 September 2021 / Revised: 29 September 2021 / Accepted: 19 October 2021 / Published: 23 October 2021
(This article belongs to the Special Issue Ocean Wave Studies for Engineering Applications)
A mid-term analysis of shoreline evolution was carried out in the present paper for the Trigno river mouth area (5.2 km), located in the northern part of the Molise coast region (southeast Italy). The littoral drift rose (LDR) concept was employed, coupled to the GENESIS one-line model, to produce numerical simulations. The LDR graph was used to define a single, time-invariant, “equivalent wave” component (EW), which was supposed to entirely rule the shoreline changes. Given the inherent bimodality affecting the Molise wave climate, EW could result not significant in forecasting shoreline evolution, since both a climate inversion and a time-varying diffusion extra effect are expected. These aspects, never investigated in the literature, are deepened in the present paper, with the main aims of firstly assessing the explanatory power of the LDR equivalent wave and its significance within a bimodal climate, and secondly checking the role of a time-varying diffusivity. Results confirmed the reliability of the EW concept, even within a bimodal climate. Moreover, the possible effect of a time-varying diffusion, which is expected with a large directional variability, produced insignificant results with respect to the EW. View Full-Text
Keywords: beach processes; shoreline erosion; littoral drift rose; coastal morphodynamics; shoreline diffusion beach processes; shoreline erosion; littoral drift rose; coastal morphodynamics; shoreline diffusion
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MDPI and ACS Style

Ciccaglione, M.C.; Buccino, M.; Di Paola, G.; Tuozzo, S.; Calabrese, M. Trigno River Mouth Evolution via Littoral Drift Rose. Water 2021, 13, 2995. https://doi.org/10.3390/w13212995

AMA Style

Ciccaglione MC, Buccino M, Di Paola G, Tuozzo S, Calabrese M. Trigno River Mouth Evolution via Littoral Drift Rose. Water. 2021; 13(21):2995. https://doi.org/10.3390/w13212995

Chicago/Turabian Style

Ciccaglione, Margherita Carmen, Mariano Buccino, Gianluigi Di Paola, Sara Tuozzo, and Mario Calabrese. 2021. "Trigno River Mouth Evolution via Littoral Drift Rose" Water 13, no. 21: 2995. https://doi.org/10.3390/w13212995

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