Hyperspectral modeling of colored dissolved organic matter (CDOM): Insights from machine learning and band ratio models - Jinyue Chen; Chongyang Wang; Shuisen Chen; Shilong Ren; Lei Fang; Yanxia Li; Wenjun Sun; Zhenyu Gao; Zehui Wang; Rao Fu; Guoqiang Wang; Qiao Wang (Estuarine, Coastal and Shelf Science, 2025)