Methods for assessing hydrological and geoecological risks based on modelling Jafar Niyazov, Olga Kalashnikova, Viktoria Pochechun and Aleksandr Semyachkov E3S Web Conf., 417 (2023) 02004 Published online: 21 August 2023 DOI: 10.1051/e3sconf/202341702004