MONITORING OF THE RIVERBEDS OF RIVERS DNIESTER AND TISZA OF THE CARPATHIAN REGION
- Department of Photogrammetry and Geoinformatics of National University Lviv Polytechnic, Lviv, Ukraine
Keywords: Channel processes, Monitoring, Flooding, Displacement of Channels, Space images, Topographic maps
Abstract. The paper analyses the causes of riverbed shifts of the rivers Dniester and Tisza of the Carpathian region. Among these reasons are mostly climate, physical and geographical, and anthropogenic factors, including frequent floods, weak rocks and soils, logging, and removal of gravel and sand materials out of the channels. The research considers the transition of the Dniester and Tisza rivers from mountaineous area into the lowland. The analysis of these shifts has been carried out on the 100 km long sections over a 100-year period. We used topographic maps and space images, as well as special geological and soil maps, as materials for this research. We have determined that the shifts of the Dniester and Tisza riverbeds can reach up to 500-1000 m in some sections. We also analyze the risks and dangers that follow such shifts.