Tidal bore progressing on a small slope

Liu, Ying; Pan, Dong-Zi; Chanson, Hubert; Pan, Cunhong

doi:10.1016/j.expthermflusci.2017.07.004

Cited by 9 publications

(4 citation statements)

References 10 publications

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“…Examples of these attractions include the Severn River Bore in UK, the Dordogne River Bore in France, and Qiantang River Bore in China. A tidal bore is a phenomenon caused by the leading edge of the incoming tide forming a wave of water that travels up a river or narrow bay against the prevailing current (Li, Pan, Chanson, & Pan, 2017). It can take many forms, varying from single breaking waterfronts with a roller like a hydraulic jump to large bores which comprises several rounds of waves (Chanson, 2011).…”

Section: Introductionmentioning

confidence: 99%

Risk reduction and adventure tourism safety: An extension of the risk perception attitude framework (RPAF)

et al. 2019

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Visitor safety is an important topic in adventure tourism but remains underexplored. Using a psychological approach, this study applies and extends Rimal and Real's risk perception attitude framework to include personality traits and emotions to understand adventure tourists' safety behaviours on site. Focusing on tidal-bore watching activities in China, this study consists of two phases: interviews with nine local stakeholders followed by a field survey involving 302 visitors.Cluster analyses were conducted and three visitors' groups were identified that varied in risk perception attitudes and safety behaviours. Mediation analyses were conducted to explore the role played by worry during visitors' decision-making related to safety behaviours. Based on the findings, this study provided managerial insight for developing risk communication strategies to engage visitors in self-protective behaviour. This study also provided recommendations on how to improve visitors' safety and to protect their lives in adventure-tourism sites in China.

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Section: Introductionmentioning

confidence: 99%

Risk reduction and adventure tourism safety: An extension of the risk perception attitude framework (RPAF)

et al. 2019

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“…For example, Wang et al [79] studied the phenomenon of tidal bore-watching activities in China, which is a phenomenon caused by the leading edge of the incoming tide forming a wave of water that travels up a river or narrow bay against the prevailing current [80]. Regarding tide-watching, visitors tend to believe that it involves relatively low risk, because most people watch tidal bores by standing along the riverbank.…”

Section: Sensation Seeking Gaze and Spectacular Death Voyeurism (Pass...mentioning

confidence: 99%

Pull and Push Drivers of Giant-Wave Spectators in Nazaré, Portugal: A Cultural Ecosystem Services Assessment Based on Geo-Tagged Photos

Azevedo

2023

Land

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This paper maps the cultural ecosystem services (CES) of a well-known giant-wave hotspot located in Nazaré, Portugal. The paper adopts a qualitative approach combining an auto-ethnographic direct observation of a journey and the content analysis of photos and videos posted on the YouTube and Facebook pages of tourists and operators. A total of 44 geotagged photos from a sample of 6914 photos retrieved from Flickr allowed the classification and spatial distribution of several CES: (1) recreational—surf activities; (2) aesthetic—photography; (3) spiritual—dark tourism and risk recreation; (4) intangible heritage—maritime knowledge; (5) scientific—wave height forecast; (6) sense of place; and (7) social relations. The paper also proposes a theoretical framework that highlights the pull drivers (risk recreation, storm chasing, or spectacular death voyeurism) and the push drivers (e.g., marketing campaigns and wave forecasts alerts) that explain the behaviors of the big-wave spectators/chasers during the experience journey. Public decision-makers, destination marketing organizations, tourism operators, and business entrepreneurs must acknowledge the relevance of journey mapping in order to identify the moments of stress and the touchpoints associated with peak/positive experiences generated by these CES. This study confirms some push and pull factors assessed by previous studies.

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“…The tidal bore can be divided into undular and breaking bores. 13 The undular bore is a wave train that advances upstream of the estuary. When the intensity of the tidal bore is high, the surface breaks and then develops into a water roll that moves upstream.…”

Section: Introductionmentioning

confidence: 99%

Tidal bore impact pressures on a trestle pier in the Qiantang River Estuary, China

Pan

2022

Advances in Mechanical Engineering

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Tidal bores are natural phenomena resulting from the nonlinear distortion of tidal waves and propagate upstream with the incoming tide. The Qiantang River tidal bore is world-famous for its great momentum which can occasionally inflict major damage to infrastructures in the Qiantang River Estuary, China. Existing design guidelines are not fit for accurately estimating the tidal bore loads on elevated structures. This study investigated the impact of tidal bores on the trestle piers of a river-crossing bridge using field tests. Based on the measured data, empirical formulas for the maximum impact pressure in four zones across the trestle were derived, and the influence of the Froude number on the peak pressure was determined. Results show that the peak pressure of the instantaneous impulsive state of the bore can exceed the pressure of the quasi-steady state 10-fold. The maximum dynamic impact pressure on the seaward side of the pier occurs at the base of the bore. The peak dynamic pressure accounts for 54%, 45%, and 20% of the total pressure for Froude numbers of 1.26, 1.12, and 1.04, respectively. The results of this study can serve as valuable references for the load design of structures against tidal bores and tsunami-like waves.

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Tidal bore progressing on a small slope

Cited by 9 publications

References 10 publications

Risk reduction and adventure tourism safety: An extension of the risk perception attitude framework (RPAF)

Risk reduction and adventure tourism safety: An extension of the risk perception attitude framework (RPAF)

Pull and Push Drivers of Giant-Wave Spectators in Nazaré, Portugal: A Cultural Ecosystem Services Assessment Based on Geo-Tagged Photos

Tidal bore impact pressures on a trestle pier in the Qiantang River Estuary, China

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