Summary of Abstract Submission

Abstract Submission No. IO50-03-0032PresentationPoster

SPATIAL MAPPING OF SUSPENDED SEDIMENTS CONCENTRATION (SSC) ALONG SOUTH MAHARASHTRA COAST USING REMOTE SENSING

Mani Murali.R*1, Santhose Kumar .S2

1 CSIR , National Institute of Oceanography, India
2 Anna University, India

ABSTRACT :

Suspended sediment concentration(SSC) holds an important role in geomorphic processes. They are derived from river discharge, erosion along the shore and transported sediments through currents. The estimation of suspended sediments concentration using in-situ measurements is expensive and is also point based. This limitation has been overcome by using remote sensing data which gives the spatial and temporal variations of the sediments in a regional perspective which also has better accuracy. In this study, an intra-annual analysis was carried out to estimate the variations in Suspended Sediments Concentration (SSC) using remotely sensed data during January 2014 to March 2015. Variations are identified through image processing of Landsat 8 images. The plume extension of the sediments in the sea along the coast has been identified. The sediment concentration in mg/l was estimated for each month. From the obtained results, the variations and the extension of sediments into the ocean are clearly visible. The concentration was found to be high in July with 9-10 mg/l whereas in the rest of the months it is only around 5-6 mg/l or even lesser in months like April, May, September and October. Thus the variations clearly reflect the monsoonal effect, which brings lot of sediments from the rivers and in the succeeding months the concentration has been drastically reduced and even not found in some of the months.