Typification of Volgograd Reservoir Coasts (Left Coast) Based on Data from Unmanned Aerial Vehicles

Shoreline typification was conducted by determining their morphological and morphometric characteristics, which are important parameters for monitoring the water protection zone of water bodies. The work was carried out based on materials obtained during the expedition from September 27 to October 4, 2023. Using unmanned aerial vehicles (Phantom 4 Pro and Phantom 4 Advanced), shoreline and reservoir water protection zone probing (nadir photography) were performed. Cross-sectional profiles of the shores were constructed from orthophotomaps and digital elevation models to obtain morphological and morphometric characteristics of the shores (shoreline height, slope angle, etc.). Cross-sectional profiles for abrasion shorelines of each type were constructed at intervals approximately equal to 1000 km, where possible, and the shores were not overgrown with moisture-loving vegetation. All these data formed the basis for creating a database of shoreline types of the Volgograd Reservoir. An assessment of the current state of shoreline processes was conducted. A total of 179 km of shoreline on the left bank of the reservoir within the boundaries of the Sredneakhtubinsky and Bykovsky regions were surveyed. The following shoreline types were identified on the surveyed stretch: abrasion-cliff - 12.1 % (21.75 km), abrasion-cliff (with wave-cut niches) - 4.7 % (8.45 km), abrasion (dead cliff) - 6.1 % (10.9 km), abrasion-cliff-talus - 11.6 % (20.87 km), abrasion with scalloped fragmentation - 0.5 % (0.85 km), accumulative - 2.8 % (5.09 km), accumulative (cone of gully and ravine erosion) - 0.6 % (1.14 km), neutral - 57.7 % (103.45 km), low floodplain - 3.4 % (6.12 km), anthropogenic - 0.4 % (0.73 km).