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

Michael Fettweis,Rolf Riethmüller,Romaric Verney,Marius Becker, Joan Backers,Matthias Baeye, Marion Chapalain, Styn Claeys, Jan Claus,Tom Cox,Julien Deloffre,Davy Depreiter,Flavie Druine,Götz Flöser,Steffen Grünler,Frédéric Jourdin,Robert Lafite,Janine Nauw,Bouchra Nechad,Rüdiger Röttgers,Aldo Sottolichio,Tom Van Engeland, Wim Vanhaverbeke, Hans Vereecken

Progress in Oceanography（2019）

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摘要

•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 R2 quantifies the uncertainty of the sensor derived SPMC.•Hach-turbidities could be a cheap alternative for sample SPMC.

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关键词

Suspended particulate matter,Measurement uncertainty,Regression,Optical and acoustical sensors

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