Suspended particulate matter estimates using optical and acoustic sensors: application in Nestos River plume (Thracian Sea, North Aegean Sea)

Anastasiou, Sotiria; Sylaïos, Georgios; Tsihrintzis, Vassiliοs A.

doi:10.1007/s10661-015-4599-y

Cited by 4 publications

(4 citation statements)

References 35 publications

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“…In this study, the ASM was deployed on a tripod and measured the SSC profiles in the bottom boundary layer. These profiles have a higher resolution (0.01 m) than those measured by acoustic sensors (0.25-1.0 m), e.g., ADCP (Anastasiou et al, 2015;Baeye and Fettweis, 2015) and ADP (Fettweis and Baeye, 2015). Note that the ASM can produce valid high-resolution SSC profile only when it is not saturated.…”

Section: Advantages and Disadvantages Of The Ioa Approachmentioning

confidence: 98%

“…In addition to SSC, acoustic sensors also measure flow velocity synchronously. ADP (Moura et al, 2011;Sahin et al, 2013;Fettweis and Baeye, 2015) and ADCP (Guerrero et al, 2011;Anastasiou et al, 2015;Baeye and Fettweis, 2015), for example, concurrently obtain velocity and SSC profiles over several meters. High-frequency acoustic signal (~ 10 Hz) can be used to estimate turbulent water/sediment flux, e.g., ADV (Fugate and Friedrichs, 2002;Scheu et al, 2015;Yang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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An integrated optic and acoustic (IOA) approach for measuring suspended sediment concentration in highly turbid environments

Lin

Guo

et al. 2020

Marine Geology

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Section: Advantages and Disadvantages Of The Ioa Approachmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

An integrated optic and acoustic (IOA) approach for measuring suspended sediment concentration in highly turbid environments

Lin

Guo

et al. 2020

Marine Geology

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“…This method has been investigated and used by several researchers (Guerrero and Lamberti, 2008; Hoitink and Hoekstra, 2005; Hurther et al , 2011; Thorne and Hardcastle, 1997; Topping et al , 2007) over the past few decades under wide-range field and laboratory conditions. The acceptability of the acoustic technique in recent time is exhibited by several studies where the method is put to use, for instance, in MacDonald et al (2013); Rice et al (2014); Wren et al (2014); Agrawal and Hanes (2015); Anastasiou et al (2015) and Wilson and Hay (2015).…”

Section: Acoustic Techniquementioning

confidence: 99%

A review of field methods for suspended and bedload sediment measurement

Nda

Adnan

Yosuff

et al. 2019

WJE

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Purpose Sediment measurement is usually accessible on a periodic or distinct basis. The measurement of sediment (suspended and bedload), especially in the field, is vital in keeping essential data of sediment transport and deposition. Various techniques for measuring sediment have been used over time each with its merits and demerits. The techniques discussed in this paper for suspended sediment include bottle, acoustic, pump, laser diffraction, nuclear and optical. Other techniques for bedload measurement are; River bedload trap (RBT), CSU/FU bedload trap, Helley–Smith, Polish Hydrological Services (PIHM) device, pit and trough, vortex tube, radioactive traces and bedload–surrogate technologies. However, the choice of technique depends on multiple factors ranging from budget constraint, availability of equipment, manpower and data requirement. The purpose of this paper is to present valuable information on selected techniques used in sediment measurement, to aid researchers/practitioners in the choice of sediment measurement technique. Design/methodology/approach This paper presents a general review of selected field techniques used in sediment measurement (suspended and bedload). Each techniques mode of operation, merits and demerits are discussed. Findings This paper highlights that each technique has its peculiar merits and demerits. However, two techniques are generally preferred over others; the bottle sampling and the Helley–Smith sampler for measuring suspended and bedload sediment. This is because the applicability of these techniques is quite widespread and time-tested. Originality/value This review paper provides an in-depth description and comparison of selected existing field sediment measurement techniques. The objective is to ease decision-making about the choice of technique, as well as to identify the suitability and applicability of the chosen technique.

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“…To detect variability in SPMC, networks of observational platforms have been installed worldwide using optical and acoustical sensors (e.g. Butman et al, 1979;Grabemann andKrause, 1989 Fettweis et al, 1998;Guézennec et al, 1999;Ganju and Schoelhamer, 2006;Badewien et al, 2009;Palinkas et al, 2010;Garel and Ferrera, 2011;Nauw et al, 2014;Anastasiou et al, 2015;Jalón-Rojas et al, 2015;Many et al, 2016;Druine et al, 2018) as well as sensors or samples that give information on the shape, size and composition of the SPM (e.g. Krivtsov et al, 2008;Cartwright et al, 2009;Gray and Gartner, 2009;Fettweis and Baeye, 2015;van der Hout et al, 2015;Chapalain et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Uncertainties associated with in situ high-frequency long-term observations of suspended particulate matter concentration using optical and acoustic sensors

Fettweis

Riethmüller

Verney

et al. 2019

Progress in Oceanography

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Measurement of suspended particulate matter concentration (SPMC) spanning large time and geographical scales have become a matter of growing importance in recent decades. At many places worldwide, complex observation platforms have been installed to capture temporal and spatial variability over scales ranging from cm (turbulent regimes) to whole basins. Long-term in situ measurements of SPMC involve one or more optical and acoustical sensors and, as the ground truth reference, gravimetric measurements of filtered water samples. The estimation of SPMC from optical and acoustical proxies Please note that this is an author-produced PDF of an article accepted for publication following peer review. The definitive publisher-authenticated version is available on the publisher Web site. generally results from the combination of a number of independent calibration measurements, as well as regression or inverse models. Direct or indirect measurements of SPMC are inherently associated with a number of uncertainties along the whole operation chain, the autonomous field deployment, to the analyses necessary for converting the observed proxy values of optical and acoustical signals to SPMC. Controlling uncertainties will become an important issue when the observational input comprises systems of sensors spanning large spatial and temporal scales. This will be especially relevant for detecting trends in the data with unambiguous statistical significance, separating anthropogenic impact from natural variations, or evaluating numerical models over a broad ensemble of different conditions using validated field data. The aim of the study is to present and discuss the benefits and limitations of using optical and acoustical backscatter sensors to acquire long-term observations of SPMC. Additionally, this study will formulate recommendations on how to best acquire quality-assured SPMC data sets, based on the challenges and uncertainties associated with those long-term observations. The main sources of error as well as the means to quantify and reduce the uncertainties associated with SPMC measurements are also illustrated. Highlights ► Errors associated with optical and acoustical sensors for SPMC are quantified. ► A strict protocol limits the uncertainties. ► Systematic errors may reach up to ±20% and errors due to biofouling to 100% or more. ► Changes of the inherent particle properties may result in uncertainties up to 200%. ► A model based on the R 2 quantifies the uncertainty of the sensor derived SPMC. ► Hach-turbidities could be a cheap alternative for sample SPMC.

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Suspended particulate matter estimates using optical and acoustic sensors: application in Nestos River plume (Thracian Sea, North Aegean Sea)

Cited by 4 publications

References 35 publications

An integrated optic and acoustic (IOA) approach for measuring suspended sediment concentration in highly turbid environments

An integrated optic and acoustic (IOA) approach for measuring suspended sediment concentration in highly turbid environments

A review of field methods for suspended and bedload sediment measurement

Uncertainties associated with in situ high-frequency long-term observations of suspended particulate matter concentration using optical and acoustic sensors

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