Using turbidity and acoustic backscatter intensity as surrogate measures of suspended sediment concentration in a small subtropical estuary

Chanson, Hubert, Takeuchi, Maiko and Trevethan, Mark (2008) Using turbidity and acoustic backscatter intensity as surrogate measures of suspended sediment concentration in a small subtropical estuary. Journal of Environmental Management, 88 4: 1406-1416. doi:10.1016/j.jenvman.2007.07.009

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Author Chanson, Hubert
Takeuchi, Maiko
Trevethan, Mark
Title Using turbidity and acoustic backscatter intensity as surrogate measures of suspended sediment concentration in a small subtropical estuary
Journal name Journal of Environmental Management   Check publisher's open access policy
ISSN 0301-4797
Publication date 2008-09
Year available 2008
Sub-type Article (original research)
DOI 10.1016/j.jenvman.2007.07.009
Open Access Status File (Author Post-print)
Volume 88
Issue 4
Start page 1406
End page 1416
Total pages 11
Place of publication United Kingdom
Publisher Academic Press
Collection year 2008
Language eng
Subject 290000 Engineering and Technology
290800 Civil Engineering
290802 Water and Sanitary Engineering
260400 Oceanography
260500 Hydrology
09 Engineering
0905 Civil Engineering
Abstract The suspended sediment concentration is a key element in stream monitoring, although the turbidity and acoustic Doppler backscattering may be suitable surrogate measures. Herein a series of new experiments were conducted in laboratory under controlled conditions using water and mud samples collected in a small subtropical estuary of Eastern Australia. The relationship between suspended sediment concentration and turbidity exhibited a a linear relationship, while the relationships between suspended sediment concentration and acoustic backscatter intensity showed a monotonic increase. The calibration curves were affected by both sediment material characteristics and water quality properties, implying that the calibration of an acoustic Doppler system must be performed with the waters and soil materials of the natural system. The results were applied to some field studies in the estuary during which the acoustic Doppler velocimeter was sampled continuously at high-frequency. The data yielded the instantaneous suspended sediment flux per unit area in the estuarine zone. They showed some significant fluctuations in instantaneous suspended mass flux, with a net upstream suspended mass flux during flood tide and net downstream sediment flux during ebb tide. For each tidal cycle, the integration of the suspended sediment flux per unit area data with respect of time yielded some net upstream sediment flux in average.
Keyword Turbidity
Acoustic backscatter intensity
Suspended sediment concentration SSC
Subtropical estuary
High-frequency suspended sediment flux
Acoustic Doppler velocimeter ADV
References Chanson, H., Trevethan, M., and Aoki, S. (2005a). "Acoustic Doppler Velocimetry (ADV) in a Small Estuarine System. Field Experience and "Despiking"." Proceedings of 31th Biennial IAHR Congress, Seoul, Korea, B.H. JUN, S.I. LEE, I.W. SEO and G.W. CHOI Editors, Theme E2, Paper 0161, pp. 3954-3966. Chanson, H., Brown, R., Ferris, J., Ramsay, I., and Warburton, K. (2005b). "Preliminary Measurements of Turbulence and Environmental Parameters in a Subtropical Estuary of Eastern Australia." Environmental Fluid Mechanics, Vol. 5, No. 6, pp. 553-575. Chanson, H., Takeuchi, M, and Trevethan, M. (2006). "Using Turbidity and Acoustic Backscatter Intensity as Surrogate Measures of Suspended Sediment Concentration. Application to a Subtropical Estuary (Eprapah Creek)." Report No. CH60/06, Div. of Civil Engineering, The University of Queensland, Brisbane, Australia, August, 44 pages. Chanson, H., and Trevethan, M. (2006). "Turbulence in Small Sub-tropical Estuary with Semi-Diurnal Tides." Proceedings of 2nd International Conference on Estuaries and Coasts (ICEC-2006), Guangzhou, Guangdong Province, China, November 28-30, Invited paper, Guangdong Economy Publ., Vol. I, pp. 140-151. Chanson, H., Trevethan, M., and Aoki, S. (2008). "Acoustic Doppler Velocimetry (ADV) in Small Estuary : Field Experience and Signal Post-Processing." Flow Measurement and Instrumentation, Vol. 19, No. (DOI: 10.1016/j.flowmeasinst.2008.03.003) (ISSN 0955-5986).Fugate, D.C., and Friedrichs, C.T. (2002). "Determining Concentration and Fall Velocity of Estuarine Particle Populations using ADV, OBS and LISST." Continental Shelf Research, Vol. 22, pp. 1867-1886. Gippel, C.J. (1995). "Potential of Turbidity Monitoring for Measuring the Transport of Suspended Solids in Streams." Hydrological Processes, Vol. 9, pp. 83-97. Grayson, R.B., Finlayson, B.L., Gippel, C.J., and Hart, B.T. (1996). "The Potential of Field Turbidity Measurements for the Computation of Total Phosphorus and Suspended Solids Loads." Journal of Environmental Management, Vol. 47, pp. 257-267. Hill, D.C., Jones, S.E., and Prandle, D. (2003). "Derivation of Sediment Resuspension Rates from Acoustic Backscatter Time-series in Tidal Waters." Continental Shelf Research, Vol. 23, No. 1, pp. 19–40. Holdaway, G.P., Thorne, P.D., Flatt, D., Jones, S.E., and Prandle, D. (1999). "Comparison between ADCP and Transmissometer Measurements of Suspended Sediment Concentration." Continental Shelf Research, Vol. 19, No. 3, pp. 421-441. Hossain, S., Eyre, B., and McConchie, D. (2001). "Suspended Sediment Transport Dynamics in the Subtropical Micro-tidal Richmond River Estuary, Australia." Estuarine, Coastal and Shelf Science, Vol. 52, pp. 529–541. Kawanisi, K., and Yokosi, S. (1997). "Characteristics of Suspended Sediment and Turbulence in a Tidal Boundary Layer." Estuarine, Coastal and Shelf Science, Vol. 38, pp. 447-469. Kawanisi, K., Tsutsui, T., Nakamura, S., and Nishimaki, H. (2006). "Influence of Tidal Range and River Discharge on Transport of Suspended Sediment in the Ohta Flood-way." Journal of Hydroscience and Hydraulic Engineering, JSCE, Vol. 24, No. 1, May, pp. 1-9. Larcombe, P. and Ridd, P.V. (1992). "Dry Season Hydrodynamics and Sediment Transport in a Mangrove Creek." Proceedings 6th International Biennial Conf on Physics of Estuaries and Coastal Seas, Margaret River WA, Australia, Paper 23. (Also Mixing in Estuaries and Coastal Seas, Coastal and Estuarine Studies Vol. 50, AGU, New York, USA, 1996, pp. 388-404.) Lewis, J. (1996). "Turbidity-Controlled Suspended Sediment Sampling for Runoff-Event Load Estimation." Water Resources Research, AGU, Vol. 32, No. 7, pp. 2299-2310. Merkelbach, L.M. (2006). "A Model for High-Frequency Acoustic Doppler Current Profiler Backscatter from Suspended Sediment in Strong Current." Continental Shelf Research, Vol. 26, pp. 1316-1335. Mitchell, S.B., Burgess, H.M., and Pope, D.J. (2004). "Observations of Fine-Sediment Transport in a Semi-Enclosed Sheltered Natural Harbour (Pagham Harbour, UK)." Jl of Coastal Research, Special issue 41, pp. 141-147. Nikora, V., and Goring, D. (2002). "Fluctuations of Suspended Sediment Concentration and Turbulent Sediment Fluxes in an Open-Channel Flow." Journal of Hydraulic Engineering, ASCE, Vol. 128, No. 2, pp. 214-224. Nortek (2001). "Monitoring Sediment Concentration with Acoustic Backscattering Instruments." Nortek Technical Note No. 003, USA, 5 pages. Pavanelli, D., and Bigi, A. (2005). "Indirect Methods to Estimate Suspended Sediment Concentration: Reliability and Relationship of Turbidity and Settleable Solids." Biosystems Engineering, Vol. 90, No. 1, pp. 75-83. Smith, D.G., and Davies-Colley, R.J. (2002). "If Visual Clarity is the Issue Then Why Not Measure It?" Proceedings National Monitoring Conference, NWQM Council, Madison WI, USA, 10 pages. Sontek (1997). "Sontek Doppler Current Meters. Using Signal Stength Data to Monitor Suspended Sediment Concentration." Sontek Application Notes, San Diego, USA, Sept., 7 pages. Thevenot, M.M., and Kraus, N.C. (1993). "Comparison of Acoustical and Optical Measurements of Suspended Material in the Chesapeake Estuary." Journal Marine Environment Engineering., Vol. 1, pp. 65-79. Thorne, P.D., Vincent, C.E., Hardcastle, P.J., Rehman, S., and Pearson, N. (1991). "Measuring Suspended Sediment Concentrations using Backscatter Devices." Marine Geology, Vol. 98, pp. 7-16. Trevethan, M., Chanson, H., and Brown, R.J. (2006). "Two Series of Detailed Turbulence Measurements in a Small Subtropical Estuarine System." Report No. CH58/06, Div. of Civil Engineering, The University of Queensland, Brisbane, Australia, March, 153 pages. Voulgaris, G., and Meyers, S.T. (2004). "Temporal Variability of Hydrodynamics, Sediment Concentration and Sediment Settling in a Tidal Creek." Continental Shelf Research, Vol. 24, pp. 1659-1683.
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Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Civil Engineering Publications
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Citation counts: TR Web of Science Citation Count  Cited 30 times in Thomson Reuters Web of Science Article | Citations
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Created: Mon, 21 Jul 2008, 16:38:33 EST by Hubert Chanson on behalf of School of Civil Engineering