Results 11 to 20 of about 7,140 (304)

Surf Zone Mapping Using Multirotor Unmanned Aerial Vehicle Imagery

open access: yesInternational Journal of Optics, 2019
Surf zone is a sand area that stretches inside a breaking wave to limit the rise and fall of waves on the beach. Advanced technology in the geomatics field offers a fast and accurate solution to produce surf zone maps.
Norhalim Che Mat, Khairul Nizam Tahar
doaj   +2 more sources

Surf-zone Kinematics

open access: yesANZIAM Journal, 2017
A new method is described for making field measurements of broken surf fronts (turbulent bores) on coastal beaches. The position of a Garmin watch attached to a bodyboarder riding the surf front is recorded every second. The results of a large number of experiments on various beaches indicate that the surf fronts are uniformly retarded.
Neville John De Mestre, Gary McCoy
openaire   +3 more sources

Influence of Beach Slope on Morphological Changes and Sediment Transport under Irregular Waves

open access: yesJournal of Marine Science and Engineering, 2023
This paper presents new data from large-scale wave flume experiments. It shows the beach profile evolution and sediment transport for two different bed slopes (1:15 and 1:25), and three irregular high-energy erosive wave conditions and one low-energy ...
Sara Dionísio António   +6 more
doaj   +1 more source

Transient Surf Zone Circulation Induced by Rhythmic Swash Zone at a Reflective Beach [PDF]

open access: yes, 2017
International audienceThe influence of cuspate swash dynamics on transient surf zone circulation is investigated using both field observation at the low-tide terraced Grand Popo beach and wave-phase resolving numerical simulations.
Castelle, Bruno   +4 more
core   +4 more sources

Experimental study of waves breaking over coral reef topography of a composite slope

open access: yesShui kexue jinzhan, 2018
A series of wave-flume tests were performed to study the characteristics of regular waves breaking on coral reefs, including the breaker type, breaker height, breaker position and surf-zone width.
ZHU Yuliang   +4 more
doaj   +1 more source

Bed level changes in the surf zone during post-storm beach recovery

open access: yesFrontiers in Marine Science, 2023
The study of post-storm beach recovery is important for economic development and the protection of life in coastal areas. In this study, field observations were conducted for 21 days in the surf zone of Dongdao Beach, Hailing Island, China, after ...
Pengpeng Hu   +7 more
doaj   +1 more source

A SIMILARITY MODEL IN THE SURF ZONE

open access: yesCoastal Engineering Proceedings, 1980
In fluid mechanics, a powerful tool known as the similarity model has been applied successfully to describe velocity and pressure fields in steady boundary layer flows, jet flows and wake flows. These flows, with the exception of a few laminar cases, are quite complex and are usually not amenable to theoretical analysis.
Hsiang Wang, Wei-Chong Yang
openaire   +2 more sources

Measuring and modeling suspended sediment concentration profiles in the surf zone

open access: yesJournal of Palaeogeography, 2012
Time-averaged suspended sediment concentration profiles across the surf zone were measured in a large-scale three-dimensional movable bed laboratory facility (LSTF: Large-scale Sediment Transport Facility).
Ping Wang
doaj   +1 more source

Reynolds Stress in Surf Zone

open access: yesCoastal Engineering 1984, 1984
The on-offshore and the vertical components u, w of the velocity in a surf zone on a uniformly sloping beach in a wave tank were measured simultaneously with a laser-doppler velocimeter under two conditions. The time variation of the Reynolds stress -u'w' during one wave period is discussed.
T. Sakai, I. Sandanbata, M. Uchida
openaire   +2 more sources

A Four-Year Video Monitoring Analysis of the Posidonia oceanica Banquette Dynamic: A Case Study from an Urban Microtidal Mediterranean Beach (Poetto Beach, Southern Sardinia, Italy)

open access: yesJournal of Marine Science and Engineering, 2023
This paper investigates the dynamics of the cross-shore extensions of banquettes, a sedimentary structure mostly made by rests of Posidonia oceanica (L.) Delile, in a sandy urban beach located in the Gulf of Cagliari, Italy, western Mediterranean.
Daniele Trogu   +5 more
doaj   +1 more source

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