A Study of Sand Movements on the Lowestoft Sandbank Using Fluorescent Tracers

Jolliffe, I.P.

doi:10.2307/1794662

Cited by 17 publications

(2 citation statements)

References 2 publications

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“…Multiple studies refer to the set of methods presented by Yasso (1966) (for example, Schwartz, 1966;Ciavola and others, 1997;Ferreira and others, 2002). Tracer production methods described by other studies involve paint/varnish binders (for example, Ciavola and others 1997a; Silva and others, 2007), plastic binders (for example, Jolliffe, 1963) or resin binders (for example, Teleki, 1966;Boon 1970). Each one of these three categories of binders was tested in a laboratory phase of this tracer experiment (table 1).…”

Section: Formulationsmentioning

confidence: 99%

The fluorescent tracer experiment on Holiday Beach near Mugu Canyon, Southern California

Kinsman¹,

Xu²

2012

Open-File Report

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For more information on the USGS-the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment-visit http://www.usgs.gov or call 1-888-ASK-USGS For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprodTo order this and other USGS information products, visit http://store.usgs.gov Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.Although this report is in the public domain, permission must be secured from the individual copyright owners to reproduce any copyrighted material contained within this report. AbstractAfter revisiting sand tracer techniques originally developed in the 1960s, a range of fluorescent coating formulations were tested in the laboratory. Explicit steps are presented for the preparation of the formulation evaluated to have superior attributes, a thermoplastic pigment/dye in a colloidal mixture with a vinyl chloride/vinyl acetate copolymer. In September 2010, 0.59 cubic meters of fluorescent tracer material was injected into the littoral zone about 4 kilometers upcoast of Mugu submarine canyon in California. The movement of tracer was monitored in three dimensions over the course of 4 days using manual and automated techniques. Detailed observations of the tracer's behavior in the coastal zone indicate that this tracer successfully mimicked the native beach sand and similar methods could be used to validate models of tracer movement in this type of environment. Recommendations including how to time successful tracer studies and how to scale the field of view of automated camera systems are presented along with the advantages and disadvantages of the described tracer methodology.

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Section: Formulationsmentioning

confidence: 99%

The fluorescent tracer experiment on Holiday Beach near Mugu Canyon, Southern California

Kinsman¹,

Xu²

2012

Open-File Report

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“…1. はじめに砂浜海岸の沿岸域の地形形状は、砕波、波、流れ等による底質の浮遊や岸沖方向・沿岸方向への漂砂により時々刻々変化している．特に、砕波帯では活発な底質移動が生じることから、砕波による底質浮遊(例えば、 [1,2]) 、波・流れによる影響(例えば、 [3,4])などの検討が数多くなされている。また、主に砕波帯沖側に形成されるアウターバー(沿岸砂州)に関しても、その形成(例えば、 [5])や移動(例えば、 [6,7])に関する検討がなされている。また、遡上帯に関しても底質移動量が海岸侵食、堆積に直結することから、漂砂量の算出(例えば、 [8]) 、高波浪時と静穏時の汀線移動動態把握(例えば、 [9,10]) 、また、堆積性地形であるバームの侵食堆積 [11]やその漂砂量分布特性の検討 [12] [13]) 、構造物周りの底質移動動態 [14]、沿岸漂砂 [15]、また底質の鉛直混合の検討(例えば、 [16,17])などがなされている．国内においても、底質移動方向と移動速度、鉛直混合過程 [18]、沿岸域での底質移動調査 [19] Fig. 2 Observed time series data, (a) 2014 observations and (b) 2015 observations; (i) significant wave height, (ii) significant wave period, (iii) wave direction and (iv) wind speed.…”

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Observation of Sediment Dynamics in the Nearshore Region using Fluorescent Sand Tracers

Suzuki¹

2019

JAPANESE JOURNAL OF MULTIPHASE FLOW

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The field observations of cross-shore sediment transport from the swash zone to the offshore side of the outer bar using fluorescent sand tracers were conducted in 2014 and 2015 at the Hasaki coast, Japan facing the Pacific Ocean during storm wave conditions. The topography difference between the two years data set is that outer bar shape existed in 2014 and not existed in 2015. During the observations, wave height and wave period were observed, and sand core samplings were conducted. By using the observed wave data and the analyzed results of collected fluorescent sand tracers from the cores, the sediment movements from the offshore side of the outer bar area to the swash zone during storms were investigated. The results indicate that the sediment movements during the storms were affected by the outer bar shape. If the outer bar existed, the sediment of the onshore side of the outer bar tend to move landward, and it also moves to seaward due to undertow until the outer bar location. The sediment at the offshore side of the outer bar tends to move to onshore ward due to bedload sediment transport. However, the transport rate decrease in the trough region. The beach topography without the bar shape, the bed load sediment transport rate at the trough region was higher than that with the bar shape. Thus, the sediments at the offshore side of the bar also could move until the swash zone.

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Residual currents in relation to shoreline evolution of the East Anglian coast

Robinson

1966

Marine Geology

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A Study of Sand Movements on the Lowestoft Sandbank Using Fluorescent Tracers

Cited by 17 publications

References 2 publications

The fluorescent tracer experiment on Holiday Beach near Mugu Canyon, Southern California

The fluorescent tracer experiment on Holiday Beach near Mugu Canyon, Southern California

Observation of Sediment Dynamics in the Nearshore Region using Fluorescent Sand Tracers

Residual currents in relation to shoreline evolution of the East Anglian coast

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