Geomodels of space monitoring of water bodies Vasyl Trysnyuk, Taras Trysnyuk, Anatolii Nikitin, Anatolii Kurylo and Olga Demydenko E3S Web Conf., 280 (2021) 09016 Published online: 30 June 2021 DOI: 10.1051/e3sconf/202128009016