Wave Dissipation and Sediment Transport Patterns during Shoreface Nourishment towards Equilibrium

Li, Yuan; Zhang, Chi; Cai, Yu; Xie, Ming; Qi, Hongshuai; Wang, Yigang

doi:10.3390/jmse9050535

Cited by 22 publications

(3 citation statements)

References 72 publications

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“…It was observed that the shoreface development increases local wave height and strengthens wave nonlinearity through its shallow water depth. The most intense wavebreaking dissipation has been found on the crest of the shoreface, while the distribution of wave energy dissipation rates is more uniform on the quasi-equilibrium profile than that on the initial profile [13].…”

Section: Introductionmentioning

confidence: 96%

Influence of Beach Erosion during Wave Action in Designed Artificial Sandy Beach Using XBeach Model: Profiles and Shoreline

Zhou

Feng

Liu

et al. 2023

JMSE

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Beach width is an important factor for tourists’ comfort, and the backshore is a swash zone where sediment moves quickly. Artificial sandy beaches focus on beach width stability and evolution. This paper is based on an artificial beach project in Haikou Bay, where, in view of the existing conditions, a new type of beach profile that can protect beach berm and width without being eroded by large wave action. Numerical simulation based on XBeach model were conducted to predict the morphodynamical responses of the beach, including a diagnosis of the erosion spots under storm and normal wave events, respectively. Sediment fluxes along and across the shoreline under varied scenarios, dependent on profile width and backshore slope, were discussed. It was found that normal waves with lower heights and longer periods can induce stronger erosion than storm waves due to the landform of the inner-bay in Haikou Bay. Engineering and biological methods to reduce beach erosion during wave action were discussed. Biological methods such as green-plants-root-system can retain berm surface sediment without allowing it to be transported offshore by wave action. The design concept of this artificial beach project may inspire more beach design and protection projects in coastal zones.

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Section: Introductionmentioning

confidence: 96%

Influence of Beach Erosion during Wave Action in Designed Artificial Sandy Beach Using XBeach Model: Profiles and Shoreline

Zhou

Feng

Liu

et al. 2023

JMSE

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“…This technique may also be used to forecast how long beach sand will last and how it will respond to storms [8,[12][13][14][15][16]. Measurements of the main sand size characteristics, primarily the median grain size (D 50 ) and the sorting (distribution of sizes around the average, σ), are part of the analysis conducted to investigate coastal processes [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Microwave Drying Method before Sieving to Obtain Accuracy of Sand Size Parameters

Lopez-Garcia,

Muñoz-Perez,

Contreras-de-Villar

et al. 2024

JMSE

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The purpose of this study is to determine the differences between the size parameter findings, comparing the results of a muffle during a 12-h sand-drying process with those of a microwave, because the effectiveness of sand drying with a microwave has not previously been studied. To achieve the best outcomes and assess any inaccuracies, a technique was established. Several power levels and durations were used in the tests. Furthermore, as the median particle size (D50) affects the porosity of sand, samples from three beaches in the south of Spain with varying sand sizes were used in this study. When drying for at least 5 min, the error findings for D50 are less than 3.5%, which is perfectly acceptable for beach nourishment purposes. Regarding power, 462 watts was the optimal power; a lower power, approximately 300 watts, did not completely dry the material, even after nearly 15 min. Furthermore, errors in the sorting (σ) parameter were negligible. It is essential to implement the following recommendations in microwave drying methods: the use of a light and wide container for the sand, interruptions during drying, and a minimum duration of 5 min.

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“…Moreover, some other recent works have deepened the research of the influence of SLR on the morphological evolution of beach nourishment. For instance, a study about wave dissipation and sediment transport patterns during shoreface nourishment [5], and a laboratory investigation performed by Atkinson and Baldock [6] related to the nourishment options to mitigate SLR-induced erosion provided further knowledge in this area.…”

Section: Introductionmentioning

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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Wave Dissipation and Sediment Transport Patterns during Shoreface Nourishment towards Equilibrium

Cited by 22 publications

References 72 publications

Influence of Beach Erosion during Wave Action in Designed Artificial Sandy Beach Using XBeach Model: Profiles and Shoreline

Influence of Beach Erosion during Wave Action in Designed Artificial Sandy Beach Using XBeach Model: Profiles and Shoreline

Microwave Drying Method before Sieving to Obtain Accuracy of Sand Size Parameters

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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