Tracer studies on the updrift margin of a complex inlet system

Vila‐Concejo, Ana; Ferreira, Óscar; Ciavola, Paolo; Matias, Ana; Dias, João Alveirinho

doi:10.1016/j.margeo.2004.04.020

Cited by 29 publications

(17 citation statements)

References 25 publications

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“…In particular, sand composition [26,27] and bioclasts [28,29] have been used as natural tracers; fluorescent [30,31] and radioactive [32] tracers have been used as artificial tracing techniques. Another method to infer sediment transport is frequent topographic surveying [33,34].…”

Section: State Of the Artmentioning

confidence: 99%

A Wireless Sensor Network Framework for Real-Time Monitoring of Height and Volume Variations on Sandy Beaches and Dunes

Pozzebon

Andreadis

Bertoni

et al. 2018

IJGI

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Abstract:In this paper, the authors describe the realization and testing of a Wireless Sensor Network (WSN) framework aiming at measuring, remotely and in real time, the level variations of the sand layer of sandy beaches or dunes. The proposed framework is based on an innovative low cost sensing structure, able to measure the level variations with a 5-cm degree of precision and to locally transfer the acquired data through the ZigBee protocol. The described sensor is integrated in a wider ZigBee wireless sensor network architecture composed of an array of sensors that, arranged according to a grid layout, can acquire the same data at different points, allowing the definition of a dynamic map of the area under study. The WSN is connected to a local Global System for Mobile Communications (GSM) gateway that is in charge of data processing and transmission to a cloud infrastructure through a General Packet Radio Service (GPRS) connection. Data are then stored in a MySQL database and made available any time and anywhere through the Internet. The proposed architecture has been tested in a laboratory, to analyze data acquisition, processing timing and power consumption and then in situ to prove the effectiveness of the system. The described infrastructure is expected to be integrated in a wider IoT architecture including different typologies of sensors, in order to create a multi-purpose tool for the study of coastal erosive processes.

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Section: State Of the Artmentioning

confidence: 99%

A Wireless Sensor Network Framework for Real-Time Monitoring of Height and Volume Variations on Sandy Beaches and Dunes

Pozzebon

Andreadis

Bertoni

et al. 2018

IJGI

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“…For beach face sand transport studies a comparatively large fraction of released tracer can be recovered with 100g samples (> 60-70%; e.g. Ciavola et al 1997a, b;Vila-Concejo et al 2004) and minimum sample size is not an issue (White 1998). However, in most offshore and deeper water studies only a small fraction (< 10%) of tracer may be recovered (e.g.…”

Section: Environmental Samplingmentioning

confidence: 99%

The use of particle tracking in sediment transport studies: a review

Black¹,

Athey²,

Wilson³

et al. 2007

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New European environmental legislation such as the Shellfish and Habitats Directives, together with the more recent Water Framework Directive, are driving new and fresh approaches to sediment management. Regional authorities, environment protection agencies and consultants are increasingly being required to adopt a holistic, system-wide appreciation of sediment flux in aquatic systems. Increasingly, and necessarily, there is a need to describe sediment (and contaminant) transport pathways on dynamically variable and spatially distributed scales rather than at single point localities. 'Particle tracking', or as it is also known 'particle' or 'sediment tracing', providing certain assumptions are satisfied, offers a practical methodology for the assessment of transport pathways of a variety of sediments across wider temporal and spatial scales, and is available for silts, sands, granules, pebbles and cobbles. Although not a new technique, particle tracking has experienced a resurgence of interest and application by geologists, hydrologists and oceanographers principally as a result of the arrival of new, innovative manufacturing and measurement technologies. These have overcome previous limitations presented by the method, and have also provided a foundation for silt tracking that previously did not exist. The purpose of this paper is to provide an overview of the particle tracking methodology in the modern context, with a bias towards the practicalities of conducting a tracking experiment. We present a detailed summary of the factors and considerations involved in conducting tracking studies, including an assessment of tolerance limits on synthetic tracers and the importance of appropriate sampling strategies. In addition, we highlight the principal technical limitations of the method. We summarise the historical background regarding the use of the particle tracking method outlining the dominance of studies on sand transport and the paucity of silt tracking studies, and draw attention to some of the potential areas of application of this innovative approach.

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“…In the absence of the required conditions for fingerprinting the introduction of a tracer material to the system may be considered. Examples are the use of fluorescent ink (Vila-Concejo et al, 2004) and radioactive materials (Cheong et al, 1993). Another option would be to impose an artificial gradient of the concentration of an endemic material, for example by increasing the carbonate content of the beach relative to an area with calcareous sediments behind a breach.…”

Section: Broader Application Of Sediment Fingerprintingmentioning

confidence: 99%