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Time-space variations of sediment density and porosity profiles due to beach deformations using X-ray CT

Tamada, Fumihiko and Tujimoto, Gouzou and Kamohara, Sayaka and Ikeda, Yuki and Hokamura, Takaomi and Ilic, Suzana (2009) Time-space variations of sediment density and porosity profiles due to beach deformations using X-ray CT. Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering), 65 (1). pp. 681-685.

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Abstract

Three-dimentional Digital photogrammetry and X-ray Computed Tomography (CT) have been applied to investigate a time-space evolution of sediment size and density profile due to beach profile changes in the laboratory wave flume conditions. The time-space variations of grain size distributions were measured using a spatial autocorrelation between pixels in digital images. The sediment density profiles in the collected sediment cores were measured using X-ray CT scanning. Reconstructing three-dimensional images using CT values, the evolution of the low bulk density region were examined. These experiments indicate possible importance of the spatial and temporal variations of sediment grain size and sediment porosity.

Item Type: Journal Article
Journal or Publication Title: Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
Subjects:
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 71707
Deposited By: ep_importer_pure
Deposited On: 11 Nov 2014 10:30
Refereed?: Yes
Published?: Published
Last Modified: 20 May 2018 00:32
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/71707

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