TY JOUR TI Improving the Methodology of Geodetic Monitoring of the State of the Earth’s Surface and Instrument Arrays Based on Data from Unmanned Aircraft Systems KW geodetic monitoring KW unmanned aircraft system KW digital terrain model KW reference and control points KW combination of multi-time models KW aerial photography KW geospatial analysis KW stability margin coefficient KW total station KW projection error JO Izvestia Vuzov. Geodesy and Aerophotosurveying AU Kazanceva, V.V. AU Kosarev, N.S. PY 2025 IS 69 PB MIIGAiK