Data fusion-based improvements in empirical regression and machine learning for global daily ∼ 8 km resolution sea surface nitrate estimation and interpretation. - Aifen Zhong; Difeng Wang; Fang Gong; Jingjing Huang; Zhuoqi Zheng; Xianqiang He; Qing Zhang; Qiankun Zhu (Int. J. Appl. Earth Obs. Geoinformation, 2025)