Mapping of suspended sediments using site specific seasonal algorithms |
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Authors: | R Raaj M Ramalingam S K Ghosh U C Kothyari |
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Institution: | 1.Department of Civil Engineering,Indian Institute of Technology Roorkee,Roorkee,India;2.Institute of Remote Sensing,Anna University,Chennai,India |
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Abstract: | This article reports a preliminary work in which two site specific seasonal algorithms have been proposed for estimating the
suspended sediments concentration (SSC) from the digital numbers recorded on Indian Remote sensing Satellite, IRS-P4 Ocean
Colour Monitor (OCM) sensor. For estimation of SSC, the proposed algorithms utilize dark pixel deduction atmospheric correction
technique. The computations are performed with respect to north east monsoon phase situations of Palk Strait coastal stretch.
The algorithms performance was satisfactory during the north east monsoon period. Although the results obtained cannot be
generalized, we suggest that the authority of proposed algorithms can be extended to other seasons with the addition of more
temporal experimental validation data sets and with numeric constants adjusted to present existing conditions. (As this area
was severely affected by Tsunami, it may have dissimilar conditions at present). |
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