Environmental Impact of Coastal Dunes in the Area Located to the Left of the Garigliano River Mouth (Campany, Italy).

Pennetta, Micla; Corbelli, Vera; Esposito, Paolo; Gattullo, Vincenzo; Nappi, Raffaella

doi:10.2112/si61-001.52

Cited by 11 publications

(11 citation statements)

References 5 publications

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“…The presence of artificial harbors located at the extremes of the units implies a different transport by wave-generated longshore currents, which causes a weak rotation of the shoreline towards the East, linked to an overall erosion on the downdrift side of the sandy beach, that is more evident on its Southern sector. Therefore, the changes carried out by human activities on the coastal system are studied with the same methods used for the investigation of other coastal areas [6][7][8][9][10][11][12][13][14][15].…”

Section: Figurementioning

confidence: 99%

Beach Erosion in the Gulf of Castellammare di Stabia in Response to the Trapping of Longshore Drifting Sediments of the Gulf of Napoli (Southern Italy)

Pennetta

2018

Geosciences

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Abstract:The results of this study have allowed verification that longshore sediment transport along the coast of Napoli Gulf (southern Italy) takes place from Northwest to Southeast. The current analysis describes the results of an integrated sedimentological and geomorphological study of the Neapolitan coastal area. A sedimentological and morphosedimentary study was carried out by bathymetric survey and sampling of bottom sediments. The analysis of modal isodensity curves shows that all the sediments are moved from NW to SE by longshore currents parallel to the coastline. The morphological evolution of the Castellammare di Stabia Gulf coastal area, based on historical coastline changes, starts from 1865, when the sandy littoral was wide and in its natural state. Since the construction of the Torre Annunziata harbor in 1871, sediments transported by a NW-SE longshore drift have become trapped, inducing the genesis of a new wide triangular-shaped beach on the updrift side (NW) of the harbor breakwall. This process induced a significant shoreline retreat of the south-east sector of the littoral. Widespread beach erosion of the coastal physiographic unit of Castellammare di Stabia Gulf (delimited by two ports) is more developed in the southern portion. This study highlights a slight rotation of the shoreline toward the East and a general trend of regression, with typical overall accentuation of shoreline concavity, and significant widening of the triangular-shaped beaches at the end of the falcate. This reduced sediment input removed from the sedimentary budget a large amount of deposits, which are hardly restorable due to the scarce supply of sediment load by the Sarno river and its tributaries. In addition to this new and important derived morphologic feature, other recent human interventions have contributed to further modifications of morphologic characteristics of emerged and submerged beach. The intense use of the territory caused modifications on both the fluvial course and river mouth with direct and indirect effects on the shoreline and the drainage network of the Sarno River.

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Section: Figurementioning

confidence: 99%

Beach Erosion in the Gulf of Castellammare di Stabia in Response to the Trapping of Longshore Drifting Sediments of the Gulf of Napoli (Southern Italy)

Pennetta

2018

Geosciences

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“…1a). This dune system can be considered as a natural barrier to sea ingression (e.g., Pennetta et al, 2011a;Pappone et al, 2012;Amato et al, 2013). Moreover, the back-ridge depressions, recently drained, are localized in several and large areas, with a mean elevation of 0.50/1.5 m a.s.l.…”

Section: Study Area and Wave Climatementioning

confidence: 99%

Rip current evidence by hydrodynamic simulations, bathymetric surveys and UAV observation

Benassai

Aucelli

Budillon

et al. 2017

Nat. Hazards Earth Syst. Sci.

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Abstract. The prediction of the formation, spacing and location of rip currents is a scientific challenge that can be achieved by means of different complementary methods. In this paper the analysis of numerical and experimental data, including RPAS (remotely piloted aircraft systems) observations, allowed us to detect the presence of rip currents and rip channels at the mouth of Sele River, in the Gulf of Salerno, southern Italy. The dataset used to analyze these phenomena consisted of two different bathymetric surveys, a detailed sediment analysis and a set of high-resolution wave numerical simulations, completed with Google Earth ™ images and RPAS observations. The grain size trend analysis and the numerical simulations allowed us to identify the rip current occurrence, forced by topographically constrained channels incised on the seabed, which were compared with observations.

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Section: Study Area and Wave Climatementioning

confidence: 99%

Answer to anonymous referree #1

Benassai¹

2017

Preprint

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Dear anonymous referee #1, Thank you for your favourable comments and for your kind reviews, which have been very helpful to improve the paper clarity. With regard to the wider potential of UAS data, we would be grateful if you suggest one or two references. As you noticed, the bathymetric surveys were not described in detail. We improved the information on the morpho-bathymetric survey from which the DTM was derived, with particular reference to the sampling plan and the equipment used. Moreover, we modified the captions of the figures 3, 6 and 7 in order to let them clearer to the readers. In figure 7 we added red arrows to emphasize the observed rip-currents and we cited the Google EarthTM image sources. In Fig. 7 there are 4 individual images of approximately the same beach area. Finally, we corrected the language in the manuscript. Thank again and best regards. On behalf of the Authors C1

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Environmental Impact of Coastal Dunes in the Area Located to the Left of the Garigliano River Mouth (Campany, Italy).

Cited by 11 publications

References 5 publications

Beach Erosion in the Gulf of Castellammare di Stabia in Response to the Trapping of Longshore Drifting Sediments of the Gulf of Napoli (Southern Italy)

Beach Erosion in the Gulf of Castellammare di Stabia in Response to the Trapping of Longshore Drifting Sediments of the Gulf of Napoli (Southern Italy)

Rip current evidence by hydrodynamic simulations, bathymetric surveys and UAV observation

Answer to anonymous referree #1

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