Tide-Induced Variability and Mechanisms of Surface Suspended Sediment in the Zhoushan Archipelago along the Southeastern Coast of China Based on GOCI Data

The variations and dynamics of suspended sediment in the coastal waters around Zhoushan Archipelago are complex due to strong tidal dynamics. This study aims delineate tide-induced variability surface reveal its mechanisms based on Geostationary Ocean Color Imager (GOCI) data. Suspended concentration (SSC) estimations through ultraviolet wavelength atmospheric correction (UV-AC) algorithm a tuned empirical inversion using extensive situ measurements presented. GOCI-processed remote sensing reflectance (Rrs) is validated field data cross-validated with Landsat 8 Operational Land (L8/OLI) measurements, respectively. estimated SSC independent datasets. validations that Rrs reasonable GOCI-retrieved accurate can be used quantify distributions Archipelago. area closely related temporal level. High SSCs often occur middle ebb or flood tides large discharge high velocity. Significant hourly mainly controlled by forces. Dynamic mechanism analysis indicates during neap tides, local attributed resuspension process driven currents; addition, spring tide, simultaneously modulated horizontal advection processes.