The study of suspended sediment concentration and flux
The ADP is an advanced piece of oceanographic equipment that measures water speed and direction profiles using the acoustic Doppler principle. In recent year, the strength of the acoustic backsactter obtained using ADP has been used to measure vertically suspended sediment concentration(SSC) profiles. In this study, an ADP was installed in coastal waters Yumsan, on the west coast of Korea, Gwangyang and Busan, on the south coast of Korea, and flow and sediment data were gathered simultaneously. SSC concentrations were calculated from the acoustic backscatter strengths adjusted using calibrated acoustic coefficients. The observed SSC profiles were compared with analytical solutions and showed good sgreement. Simultaneously, the suspended material fluxes were analyzed in detail. ADP was very useful for measuring the vertically distributed suspended sediment concentrations and flow velocity profiles.