Special Section on Aquatic Remote Sensing Applications in Environmental Monitoring and Management

Evaluation of satellite remote sensing for operational monitoring of sediment plumes produced by dredging at Hay Point, Queensland, Australia

[+] Author Affiliations
Md A. Islam, Wang Lan-Wei, Craig J. Smith, Shanti Reddy, Adam Lewis

Geoscience Australia

Adam Smith

Great Barrier Reef Marine Park Authority

J. Appl. Remote Sens. 1(1), 011506 (December 26, 2007). doi:10.1117/1.2834768
History: Received April 17, 2007; Revised November 5, 2007; Accepted November 21, 2007; December 26, 2007; Online December 26, 2007
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Abstract

This study describes the potential of multi-temporal Landsat Thematic Mapper (TM), Enhanced Thematic Mapper Plus (ETM+) and Moderate Resolution Imaging Spectroradiometer (MODIS) data for the operational monitoring of sediment plume produced by dredging between 8 May and 31 October 2006 at Hay Point, Northern Queensland, Australia. The methodology involved atmospheric correction of the TM, ETM+ and MODIS images, the development and verification of a Total Suspended Sediment (TSS) model, and the evaluation of the image derived TSS maps for tracking sediment plume movements and its influence on the fringing coral environment. TSS empirical models are developed from TM/ETM+ Band 3 with R2> = 0.92 and from MODIS Band 12 with R2> = 0.61. The accuracy of the TSS model for TM/ETM+ is {plus minus} 3.2 (mg l-1>) and for MODIS is {plus minus} 16.0 (mg l-1>). The estimated sediment plume displacement and rate of dispersion show high correlation with the tidal amplitude. Wind speed greater than 6 m s-1> increases the sediment plume movements during the ebb tide. The frequency of the plume extending beyond the fringing coral islands during dredging operations is in agreement with the field observed coral mortality due to sediment accumulation.

© 2007 Society of Photo-Optical Instrumentation Engineers

Citation

Md A. Islam ; Wang Lan-Wei ; Craig J. Smith ; Shanti Reddy ; Adam Lewis, et al.
"Evaluation of satellite remote sensing for operational monitoring of sediment plumes produced by dredging at Hay Point, Queensland, Australia", J. Appl. Remote Sens. 1(1), 011506 (December 26, 2007). ; http://dx.doi.org/10.1117/1.2834768


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