Long-term Suspended Sediment Concentration (SSC) Dataset for the Yangtze River (1984–2021)

This dataset provides long-term records of Suspended Sediment Concentration (SSC) for the mainstream of the Yangtze River (.tif), extending from Yibin, Sichuan Province, to the river estuary. The dataset spans the period from 1984 to 2021 and was derived from 30-meter resolution Landsat satellite observations.SSC values were retrieved using remote sensing reflectance derived from Landsat imagery (TM, ETM+, OLI, and OLI-2), following atmospheric correction and empirical regression models validated against in-situ measurements. The dataset provides annual and multi-year composite products that are suitable for hydrological, geomorphological, and environmental studies of the Yangtze River.In addition to the processed dataset, we also provide the Google Earth Engine (GEE) code (.JS) used to generate the SSC products. The code allows users to reproduce the dataset or extend it with alternative calibration models, temporal windows, or spatial domains.