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The Plymouth Student Scientist

Document Type

Project Article

Abstract

This project uses a combination of different measuring techniques to investigate the distribution and size of Suspended Particulate Matter within the lower reaches of the Tamar Estuary and Plymouth Sound. Data of particle concentrations and sizes, along an ebb and flood transect of the lower Tamar estuary, are presented and analysed. Expected trends of a reduction in particle concentration towards the mouth (from 7mg.L-1 to 5mg.L-1) were detected. A decrease in particle size from 170μm furthest upstream, to 140μm near the mouth, was also observed. Significant relationships between particle size and organic concentration were found, with correlation coefficients of r = +0.5 during ebb conditions and r = +0.7 during flood conditions. Analysis of data obtained from digital holography highlighted the complex structure of flocculated particles, as well as allowing for the identification of anomalies found in LISST data. It is suggested that better shape parameterisation is required when determining particle size using LISST instruments.

Publication Date

2011-07-01

Publication Title

The Plymouth Student Scientist

Volume

4

Issue

1

First Page

63

Last Page

108

ISSN

1754-2383

Deposit Date

May 2019

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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