TY CONF TI Errors of Digital Model Relief, Based on Dron Photo Series KW digital terrain model KW drone KW Crimea JO XXVII International Shore Conference (Arctic Coast: The Path to Sustainability) AU Dolotov, V.V. AU Goryachkin, Y.N. AU Dolotov, A.V. AU Udovik, V.F. PY 2024 PB Academus Publishing