Four decades of dissolved organic carbon dynamics in Lake Taihu using comprehensive Landsat-5/7/8 observations and advanced machine learning models with investigation on driving factors - Feilong Shen; Jifeng Li; Tianwei Wang; Nian Li; Jiawei Yang; Mengyang Xu; Yange Yan; Linhuan He; Yulong Guo; Zhongbing Chen (Journal of Hydrology, 2026)