Location of Turbidity Maxima Within a Microtidal Estuary and Some Limitations of Laser In Situ Particle Sizing

File Size Format
39816_1.pdf 1499Kb Adobe PDF View
Title Location of Turbidity Maxima Within a Microtidal Estuary and Some Limitations of Laser In Situ Particle Sizing
Author Hunt, S.; Lemckert, Charles James; Schacht, Christie Margaret
Journal Name Journal of Coastal Research
Editor C Finkle
Year Published 2006
Place of publication United States
Publisher Coastal Education & Research Foundation
Abstract A study of suspended sediment concentration properties has been undertaken in a predominately microtidal estuary using an in situ profiling instrument package comprising a LISST-100 particle sizer and SeaBird CTD. This novel instrumentation arrangement permitted the simultaneous sampling of temperature, conductivity, pressure, transmissiometry and particle volume concentration (as a function of particle size) during profiling operations. The estuary was found to have two types of turbidity maxima. The first was associated with bottom resuspension, its vertical extend being inhibited by water column stratification. The second was associated with inflow, which was found to have high concentrations of fine particles whose concentration increased with inflow rate. The particles were observed to flocculate rapidly when the salinity of the inflow water reached about 5 0/ . The location of the 5 0/ 00 00 isohaline was found to be a power law function of the inflow rate, indicating that microtidal estuaries can be readily dominated by inflow water properties. The results from the study also showed that stratification could significantly influence the LASER derived results, and therefore care must be taken when using devices like the LISST-100 in stratified environments.
Peer Reviewed Yes
Published Yes
Publisher URI http://www.jstor.org/stable/25741628
Copyright Statement Copyright 2006 CERF. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
Volume SI 39
Page from 520
Page to 525
ISSN 0749-0208
Date Accessioned 2007-02-22
Language en_US
Faculty Faculty of Science, Environment, Engineering and Technology
Subject PRE2009-Oceanography
URI http://hdl.handle.net/10072/14429
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

Show simple item record

Griffith University copyright notice