A distributed model parameter optimization toolbox performing multisite calibration in the lump and distributed mode for the SWAT model. - Qingyu Feng; Liding Chen; Lei Yang; Haw Yen; Ruoyu Wang 036; Feng Wu; Yang Feng; Raj Cibin; Bernard A. Engel; Nina Omani; Panagiotis D. Oikonomou; Asim Zia (Environ. Model. Softw., 2023)