Data and code for HLS-based retrieval validation and evaluation of cross-sectional suspended sediment concentration in the middle and lower reaches of the Liaohe River

This record contains processed data, figure source data, spatial files, and core scripts supporting a manuscript on HLS-based suspended sediment concentration (SSC) retrieval, validation, and evaluation in the middle and lower reaches of the Liaohe River. The repository includes processed station-date-sensor sample tables, model validation results, figure source data, spatial files used for HLS processing, and core scripts for HLS image acquisition, QC-table export, HLS feature extraction, and Ridge-regression modeling and validation.    The daily HLS GeoTIFFs are not included because HLS data are publicly available and the exported imagery is large in volume. Users can regenerate daily HLS composites using the Google Earth Engine script included in the code folder.