Estimation of Longshore Sediment Transport Using Video Monitoring Shoreline Data

Oh, Jung-Eun; Chang, Yeon S.; Jeong, Weon Mu; Kim, Ki‐Hyun; Ryu, Kyong Ho

doi:10.3390/jmse8080572

Cited by 6 publications

(4 citation statements)

References 26 publications

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“…The study then As a result, the sediments in this site could respond more easily at lower wave energy levels, which might lead to a different pattern of erosion and recovery process. For example, the sand size in the study site ranged from 0.15 to 0.35 mm, as it is categorized as fine to medium sand, which was smaller than the sand size measured in the two beaches located in the open coast outside the bay, where it was ~0.5 mm at both beaches (categorized as medium to coarse sand) [30,31]. The criteria for erosion/accretion suggested in this study can hardly be determined in other beaches on the open coast, where nearshore crescentic sandbars are actively developed.…”

Section: Discussionmentioning

confidence: 62%

Monitoring of Recovery Process at Yeongildae Beach, South Korea, Using a Video System

Jeong

Ryu

et al. 2021

Applied Sciences

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Once a beach is eroded by storm waves, it is generally recovered under milder wave conditions. To prevent or reduce damage, it is therefore important to understand the characteristics of the site-specific recovery process. Here, we present the results, based on a data set from a video monitoring system and wave measurements, of the recovery process in a pocketed beach located inside a bay where the shoreline retreated harshly (~12 m, on average, of beach width) during Typhoon TAPAH (T1917) in September 2019. It took about 1.5 years for the beach to be recovered to the level before the typhoon. During this period, the erosion and accretion were repeated, with the pattern highly related to the wave power (Pw); most of the erosion occurred when Pw became greater than 30 kWatt/m, whereas the accretion prevailed when Pw was no greater than 10 kWatt/m. The recovery pattern showed discrepancies between different parts of the beach. The erosion during storm events was most severe in the southern part, whereas the northern shoreline did not significantly change even during TAPAH (T1917). In contrast, the recovery process occurred almost equally at all locations. This discrepancy in the erosion/accretion process was likely due to human intervention, as a shadow zone was formed in the northern end due to the breakwaters, causing disequilibrium in the sediment transport gradient along the shore. The results in this study could be applied in designing the protection plans from severe wave attacks by effectively estimating the size of coastal structures and by correctly arranging the horizontal placement of such interventions or beach nourishment. Although the application of these results should be confined to this specific site, the method using wave energy parameters as criteria can be considered in other areas with similar environments, for future planning of beach protection.

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Section: Discussionmentioning

confidence: 62%

Monitoring of Recovery Process at Yeongildae Beach, South Korea, Using a Video System

Jeong

Ryu

et al. 2021

Applied Sciences

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“…The one-line theory was utilized to estimate the LSTR based on long-term shoreline changes [10]. This model states that the beach profile shifts parallel to itself in the crossshore direction, as illustrated in Figure 7.…”

Section: Integrated Longshore Sediment Transport Ratementioning

confidence: 99%

“…Although numerous studies have explored coastal engineering aspects along Phu Quoc Island's shoreline, there has been scant literature on the Longshore Sediment Transport Rate (LSTR) up to now. Given the critical importance of LSTR for coastal engineering projects and management [3][4][5][6][7][8][9][10][11][12][13][14][15], this study seeks to estimate the LSTR at a specific coastal cell (Cua Can Beach) on Phu Quoc Island. This estimation will provide vital data for future coastal management endeavors on the island.…”

Section: Introductionmentioning

confidence: 99%

Longshore sediment transport rate at a pocket beach in Phu Quoc City, Kien Giang Province, Vietnam

Nguyen Anh,

Tran Van,

Dinh Van

et al. 2024

JHM

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This study conducts a critical examination of the Longshore Sediment Transport Rate (LSTR) along Cua Can Beach in Phu Quoc City, Kien Giang Province. This notable pocket beach is characterized by its natural beauty and burgeoning tourist developments. The escalating construction of tourist facilities and resorts in close proximity to the shoreline, without considering beach morphological changes, poses a significant threat to the coastal integrity and sustainable development of the region. In response to this concern, our research aims to estimate the LSTR on the west coast of Phu Quoc to advocate for informed coastal engineering management and sustainable development strategies. Employing an integrated methodology that combines remote sensing with a simplistic oneline model, this study provides a comprehensive assessment of sediment dynamics along Cua Can Beach. The findings reveal consistent annual sediment transport from south to north, with an estimated quantity ranging from 5,000 to 20,000 m³ per year.

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“…(2) coastline change patterns that occurred in the coastal area; and (3) wave propagation and sediment transport directions along the coast. Instead of visual expression, sediment transport direction can be deduced from wave incidence direction toward a coastline (Komar, 1976;Dyer, 1986;Adams et al, 2011;Klein et al, 2020;Oh et al, 2020). Visual analysis of satellite images for object recognition was done by observing satellite images on a monitor screen.…”

Section: Stage 1: Field Study and Image Analysismentioning

confidence: 99%

Adaptation strategy to coastal erosion by rural communities: Lessons learned from Ujunggebang village, Indramayu, West Java, Indonesia

Setyawan¹

2021

Marit. Technol. Res.

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Coastal hazard due to wave activity, in the form of coastal erosion, has long been a problem in the coastal area of Ujunggebang. Loss of coastal land in the coastal area has removed a lot of rice fields, settlements, and public facilities. Efforts to maintain the coastline along 3,300 m of the coastal area, by building coastal defense structures (CDS), have been carried out by the central government since 2006 but, until 2015, the CDS that has been built is still only around 1782 m long, in some places the structure is damaged due to wave activity, and in general the structure is not enough to prevent overtopping. Meanwhile, unprotected coastal segments with CDS have experienced significant erosion. The idea of land use change as an effort to adapt coastal hazards, which was conveyed through an idea socialization approach and through showing examples of coastal area management practices to villagers, gave birth to the idea of developing a coastal tourism area in the village as a complementary measure for the existing coastal defense structure. Although the main problem faced- coastal erosion- has not been resolved, the development of the tourism area has been recognized by the local government as successfully changing the life of the village community.

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Estimation of Longshore Sediment Transport Using Video Monitoring Shoreline Data

Cited by 6 publications

References 26 publications

Monitoring of Recovery Process at Yeongildae Beach, South Korea, Using a Video System

Monitoring of Recovery Process at Yeongildae Beach, South Korea, Using a Video System

Longshore sediment transport rate at a pocket beach in Phu Quoc City, Kien Giang Province, Vietnam

Adaptation strategy to coastal erosion by rural communities: Lessons learned from Ujunggebang village, Indramayu, West Java, Indonesia

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