The paper considers the methodology of hydrological modeling of flooded lands, carried out on a section of the Dniester River (Ukraine) with complex hydro-morphometric characteristics of the riverbed. The source material was images obtained from UAVs. Special attention is focused on the influence of changes in the terrain surface on the modeling results, which depend on the Manning coefficients.
The purpose of the research is to study changes in the area of land flooding according to the selected hydrological model due to changes in the subsoil surface. The change of the surface, which is associated with a complex type of channel meandering, is considered as an important element of modeling.
The object of the study is a section of the Dniester River in Ukraine at the point of transition from the foothill part of the channel to the hilly-swampy part with complex meandering and significant displacements of the river. Determination of horizontal displacements of the channel, construction of high-precision DEM, determination of Manning coefficients was carried out using geospatial data obtained from UAVs.
Hlotov V. Analysis and prospects of aerial photography from unmanned aerial vehicles / V. Hlotov, A. Tserklevych, O. Zbrutskyi, V. Kolisnichenko, O. Prokhorchuk, R. Karnaushenko, V. Haletskyi // Modern achievements of geodetic science and production. – 2014.- Vol. І (27) - p.131-137
Rudko H.I. Characteristics of boulder-gravel-sand deposits in Lviv region and their impact on the ecological state of the environment / H.I. Rudko, V.Iu. Petryshyn // Mineral resources of Ukraine. – №1. – 2014. – p. 39-47.
Burshtynska Kh. Hydrological processes modeling using GIS ARCGIS and module HEC-RAS / Kh. Burshtynska, A. Babushka, M. Halochkin // Geodesy, Cartography and Aerial Photography: SCIENTIFIC JOURNAL. — Lviv : Lviv Politechnic Publishing House, 2020. — No 91. — P. 28–40, https://doi.org/10.23939/istcgcap2020.91.028.
Hooke J.M. Hydromorphological adjustment in meandering river systems and the role of flood events / J.M. Hooke // Sediment Dynamics and the Hydromorphology of Fluvial Systems. (Proceedings of a symposium held in Dundee, UK, July 2006). – Vol. 306. - pp. 127-135.
Khaleghi Somaiyeh. Integrated application of HEC-RAS and GIS and RS for flood risk assessment in Lighvan Chai River. / Khaleghi Somaiyeh, Mahmoodi Mehran & Karimzadeh Sorayya. // International Journal of Engineering Science Invention. Volume 4 Issue 4.-2015.-38–45
Korpak J. Wplyw czynników antropogenicznych na zmiany koryt cieków karpackich / J. Korpak, K. Krzemień, A. Radecki-Pawlik // Infrastruktura i Ekologia Terenów Wiejskich, Monografia 4. PAN, Kraków, 2008. - p.1-88.
Sharkey J. Kay. Investigating Instabilities with HEC-RAS Unsteady Flow Modeling for Regulated Rivers at Low Flow Stages. // Master's Thesis, University of Tennessee, 2014.
Shevchuk V. Monitoring of horizontal displacements and changes of the riverine area of the Dniester River. / Shevchuk V., Burshtynska K., Korolik I., Halochkin M. // Journal of Water and Land Development., - 2021, No. 49 (IV–VI) p. 1–15. DOI 10.24425/jwld.2021.137091.
Silva F. V. Flood mapping in urban area using HEC-RAS model supported by GIS. / Silva F. V., Bonumá N. B. & Uda P. K. // 6-th international conference on flood management, September 2014 – Sao Paulo – Brazil.