A novel 3D volumetric method for directly quantifying porosity and pore space morphology in flocculated suspended sediments

Lawrence, T. and Carr, S. and Manning, A.J. and Wheatland, J. and Bushby, A. and Spencer, K. (2023) A novel 3D volumetric method for directly quantifying porosity and pore space morphology in flocculated suspended sediments. MethodsX, 10.

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Official URL: https://doi.org/10.1016/j.mex.2022.101975

Abstract

Flocculated suspended sediments (flocs) are found in a variety of environments globally, and their transport and behavior bear substantial importance to several industries including fisheries, aquaculture, and shipping. Additionally, the modelling of their behavior is important for estuarine and coastal flood prediction and defence, and the process of flocculation occurs in other unrelated industries such as paper and chemical production. Floc porosity is conventionally assessed using inferential indirect or proxy data approaches. These methods underestimate floc porosity % by c. 30% and cannot measure the micro-scale complexity of these pore spaces and networks, rendering inputs to models sub-optimal. This study introduces a novel 3D porosity and pore space quantification protocol, that produces directly quantified porosity % and pore space data. • 3D floc data from micro-CT scanning is segmented volumetrically • This segmented volume is quantified to extract porosity and several pore space parameters from the floc structure

Item Type: Article
Uncontrolled Keywords: Porosity quantification; Flocculation; Estuary sediments; Pore space
Subjects: Maritime > General
Divisions: Maritime
Depositing User: Helen Stevenson
Date Deposited: 22 Aug 2023 14:51
Last Modified: 22 Aug 2023 14:51
URI: http://eprints.hrwallingford.com/id/eprint/1559

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