Evolution of Sediment Parameters after a Beach Nourishment

Pérez, Juan José Muñoz; Vendoiro, Juan José Santos; Garcia, Patricia Lopez; Jódar, José Manuel; Mera, Javier; Villar, Antonio Contreras de; Villar, Francisco Contreras de; Antelo, Bismarck Jigena

doi:10.3390/land10090914

Cited by 6 publications

(6 citation statements)

References 36 publications

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“…According to different authors, approximately one year after sandy beach nourishment with borrow material, the median sediment size is very similar to the size of the original beach sediment [4,5,10]. However, in this case, where the size of the dumped material is 6.17 times larger than the original beach sediment this does not occur (Figure 3).…”

Section: Discussionmentioning

confidence: 93%

“…Since natural materials, mainly fine sands, are scarce, nourishment is currently conducted with coarse sands from quarries. Due to these, it is important to analyze the development of borrowed sand over time [10].…”

Section: Introductionmentioning

confidence: 99%

“…The main studies conducted on borrow sand focus on the evolution of the size and sorting of the dumped sediment [4,5]. Most of these studies conclude that approximately one year after nourishment, both the size and sorting of the sediment is usually similar to the original material [10]. This is the case when the dumped material is relatively similar (median sediment size equal to or slightly larger) to the original.…”

Section: Introductionmentioning

confidence: 99%

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Evolution of the surface roughness of a coarse sand after a beach nourishment

López

Tenza-Abril

Aragonés

et al. 2022

Ninth International Symposium “Monitoring of Mediterranean Coastal Areas: Problems and Measurement Techniques”

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Research on the evolution of the surface roughness of coarse sand particles that were dumped in January 2020 at Los Locos beach in Torrevieja (Alicante, Spain) is conducted. This sample came from a quarry and presented a high angularity and roughness on the surface of its particles. After a year and a half of dumping the quarry material on the beach, a high degree of decrease in the roughness of the particles is observed; however, to reach the degree of polishing that the particles of a natural beach have, a longer period is necessary.

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Section: Discussionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evolution of the surface roughness of a coarse sand after a beach nourishment

López

Tenza-Abril

Aragonés

et al. 2022

Ninth International Symposium “Monitoring of Mediterranean Coastal Areas: Problems and Measurement Techniques”

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“…This generates significant anthropic pressure, which often translates into the trampling of the dunes in the areas close to the beach accesses [23,34,45]. The impacts of the front beach erosion and the damage generated over this infrastructure led to various beach nourishment projects in 1998 (737,000 m 3 ), 2010 (102,200 m 3 ), 2015 (105,200 m 3 ) and 2018 (150,000 m 3 ) [47,48].…”

Section: Study Areamentioning

confidence: 99%

High-Resolution Interannual Evolution of the Dune Toe at a Mesotidal Barrier (Camposoto Beach, SW Spain)

Montes,

Benavente,

Puig

et al. 2024

JMSE

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Over recent years, processes related to marine storms, sediment shortages and human intervention have caused the global retreat of many coastal systems and the degradation of their dunes. In this context, changes in the dune toe are commonly used as a proxy to study the interannual shoreline evolution, and it is usually analyzed using orthophotography, while high temporal- and spatial-scale resolution studies of dune toe evolution are not frequent. In this work, a quasi-monthly study of dune toe data was carried out between 2008 and 2018. These data, taken from the RTK-DGPS and UAS systems, were subjected to shoreline analysis, and they showed an average regression rate of −2.30 m/year, a higher value than the one registered until 2008 (1 m/year). This suggests an acceleration in the erosion suffered within the system, which was revealed to be more intense in the northern sector of the study area. Dune toe variability increased over the years, probably due to the presence of washover fans breaking the foredune that were reactivated and expanded during storm events. The ephemeral progradation of the dune toe was also noted, which could be explained with reference to wind events and/or beach nourishment that had been carried out over the studied period. From the analysis of the dune toe elevation, a decrease in this variable was obtained, especially in the areas affected due to washover fans. This finding is supported by the significant correlation of the dune toe elevation and erosion trend, suggesting that the areas where the dune toe was lower are prone to suffering a greater retreat. This correlation provides insight into the future evolution of the barrier, suggesting a state of degradation and a transition to a lower-resilience state.

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“…Regarding its sedimentary characteristics, it is composed of medium-fine golden sand (D 50 = 0.25 mm) of a siliceous nature. The sand consists of 90-95% quartz and 5-10% bioclastic material [13].…”

Section: Study Areamentioning

confidence: 99%

Increase in the Erosion Rate Due to the Impact of Climate Change on Sea Level Rise: Victoria Beach, a Case Study

Vidal

Muñoz-Pérez

Contreras

et al. 2022

JMSE

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This article provides a general methodology for calculating the retreat of the coastline and the volume of sand necessary to renourish a beach due to sea level rise (SLR) in the medium-long term. An example is presented, Victoria Beach, and a projection is made for the years 2030, 2040, 2050, and 2100. The results obtained take into account global sea level rise (GSLR), which is worldwide, and local sea level rise (LSLR), which considers climate variability and vertical land movements. Regarding GSLR, data were provided by the projections from IPCC (Intergovernmental Panel on Climate Change) scenarios and empirical models, such as Rahmstorf and Pfeffer. The LSLR data came from the tide gauge station located in Cadiz. Finally, the results obtained showed that global warming impacts erosive effects and the subsequent volume of sand required to renourish beaches. The total sea level rise (TSLR) projections indicated for Victoria Beach are relatively higher than the GSLR projections. Even in the best IPCC scenario (RCP 2.6), Victoria Beach presents a significant erosion of 52 m, requiring a volume of sand of 1.0 Mm3 to supply renourishment.

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Evolution of Sediment Parameters after a Beach Nourishment

Cited by 6 publications

References 36 publications

Evolution of the surface roughness of a coarse sand after a beach nourishment

Evolution of the surface roughness of a coarse sand after a beach nourishment

High-Resolution Interannual Evolution of the Dune Toe at a Mesotidal Barrier (Camposoto Beach, SW Spain)

Increase in the Erosion Rate Due to the Impact of Climate Change on Sea Level Rise: Victoria Beach, a Case Study

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