MULTISPECTRAL REMOTE-SENSING OF NEARSHORE SUSPENDED SEDIMENTS - A PILOT-STUDY

The till that comprises the coastal cliffs at Holderness is being eroded and transported southwards by waves and currents within the nearshore zone. As a first step towards estimating the magnitude of this movement, airborne multispectral scanner data were collected. The spectral radiance (L// lambda ) recorded by this sensor was positively correlated with the suspended sediment concentration (SSC) at the 95 per cent confidence level. However, when the relationships between SSC and L// lambda were inverted for the estimation of SSC, errors of the order of 343-494 per cent were observed.