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Title: Estimating Suspended Sediment Concentration in Turbid Water using Remotely Sensed Data
Authors: Bhatti, Asif Mumtaz
Nasu, Seigo
Takagi, Masataka
Issue Date: Mar-2007
Publisher: Society for Social Management Systems
Journal Title: Society for Social Management Systems Internet Journal
Volume: 3
Issue: 1
Abstract: Remote sensing is proved to be a useful tool to provide an instantaneous and synoptic view of suspended sediments in rivers & estuaries. Turbidity is not a uniform parameter, either spatially or temporally. The objective of the research study is to estimate suspended sediments in turbid sediment-dominated waters from high spatial resolution remotely sensed data. In this study, laboratory experiments and simulated Landsat 7 ETM data is used to establish relationship between the hyperspectral remote sensing reflectance signal and suspended sediment concentration (SSC). The indoor spectral reflectance was measured 1m above the water surface using hyperspectral Field SpecPro FR Spectroradiometer in the electromagnetic spectrum region of 400 nm to 900 nm. The experiments were performed under controlled condition keeping all environmental parameters constant. Model was developed to quantify the suspended sediment concentration. The techniques used were band ratioing and regression modeling. Results from the study indicate that strong correlation exists between the suspended sediment concentration and ETM bands 3 & 4. Variations of quantity and characteristics of suspended sediment affect the reflectance signal and limit the accuracy of suspended sediment measurement. However, remotely sensed data makes it possible to efficiently monitor the seasonal distribution and concentration of suspended sediment in the water bodies.
Type: Conference Paper
URI: http://hdl.handle.net/10173/1625
Appears in Collections:Vol.03

Please use this identifier to cite or link to this item: http://hdl.handle.net/10173/1625

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