Using the Geostationary Ocean Color Imager (GOCI)—the world's first geostationary satellite sensor that can obtain observational data on ocean color every hour during the daytime—scientists are able to remotely monitor the amount of suspended sediment, organic activity, pollutants, and almost any parameter that affects the turbidity and hence the color of the surface of the ocean, in near–real time. Choi et al. compared GOCI images with measurements of suspended sediment load in the Mokpo coastal area along the west coast of Korea. They show that the GOCI color images can reliably monitor suspended sediment load in these coastal waters. They also found that the sediment movement in this region is driven primarily by daily tidal cycles.