Rip Current Research Using a CCTV Image Analysis Including Swimmer Detecting Techniques at Haeundae Beach, Korea

Hwang, Jiwon; Yun, Hong Sik; Suh, Yong Cheol; Lee, Jooyong; Kang, Seong Chan

doi:10.2112/si72-007.1

Cited by 5 publications

(2 citation statements)

References 5 publications

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“…In competitive swimming, 100 meters distance and above 100distances swimming events should make one time or multiple times turning movements, if turning movement well fulfilled , it averagely can save above 0.02 second times, and can save strength, so turning techniques merits affect swimming performance to a certain degree, especially in long distance competitions [8].…”

Section: Swimming Turning Technical Analysismentioning

confidence: 99%

Swimming turned technology teaching and training guide the optimization of diagnosis

Chen

Zhang

2017

2016 National Convention on Sports Science of China

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Abstract. Swimming is a physical and technical project, reasonable and scientific technical characteristics are a powerful guarantee to improve performance. Athletics swimming movement is mainly composed of starts and turns, on the way to swim, to edge, and at the end of the sprint composed of five parts such as technology, because of athletes in using the same technique will have a lot of individual differences, this paper analyzes the process of the diagnosis of competitive swimming technology optimization to improve the athletes technical rationality and scientific nature makes the corresponding theoretical basis. Data analysis in this paper, through a large number of game to perplex a competitive swimmer turn, Chinese technology system research, in order to China's competitive swimming training scientific reasonable Suggestions.

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Section: Swimming Turning Technical Analysismentioning

confidence: 99%

Swimming turned technology teaching and training guide the optimization of diagnosis

Chen

Zhang

2017

2016 National Convention on Sports Science of China

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“…Video data measured by VMS have been applied not only for long-term coastal zone management [3] but also for monitoring short-term shoreline retreat and recovery after storms [4]. In addition, VMS data have been successfully applied to estimate wave parameters by observing wave propagation and breaking in the surf zone [5,6] and to measure wave-induced currents such as longshore currents and rip currents [7,8]. Recently, remote sensing data measured by satellites and airborne light detecting and ranging (LiDAR) systems have been applied to mapping coastal zones more efficiently because they can cover wide regions in a short time period.…”

Section: Introductionmentioning

confidence: 99%

Estimation of Longshore Sediment Transport Using Video Monitoring Shoreline Data

Chang

Jeong

et al. 2020

JMSE

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Video monitoring systems (VMS) have been used for beach status observation but are not effective for examining detailed beach processes as they only measure changes to the shoreline and backshore. Here, we extracted longshore sediment transport (LST) from VMS in order to investigate long- and short-term littoral processes on a pocket beach. LST estimated by applying one-line theory, wave power, and the oblique angle of incident waves were used to understand shoreline changes caused by severe winter storms. The estimated LST showed good agreement with the shoreline changes because the sediments were trapped at one end of the pocket beach and the alongshore direction of transported sediments was corresponded to the direction of LST. The results also showed that the beach that was severely eroded during storms was also rapidly recovered following the evolution of LST, which indicates that the LST may play a role in the recovery process while the erosion was mainly caused by the cross-shore transport due to storm waves. After the beach was nourished, beach changes became more active, even under lower wave energy conditions, owing to the equilibrium process. The analysis presented in this study could be applied to study inhomogeneous beach processes at other sites.

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Quantitative Behaviour Characteristics Analysis of GPS Buoy in Rip Current Generation

Song

Kim

Lee

2016

Journal of Coastal Research

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Rip Current Research Using a CCTV Image Analysis Including Swimmer Detecting Techniques at Haeundae Beach, Korea

Cited by 5 publications

References 5 publications

Swimming turned technology teaching and training guide the optimization of diagnosis

Swimming turned technology teaching and training guide the optimization of diagnosis

Estimation of Longshore Sediment Transport Using Video Monitoring Shoreline Data

Quantitative Behaviour Characteristics Analysis of GPS Buoy in Rip Current Generation

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