Identification of Geological and Engineering Conditions for Forging the Bed of a Large Lowland River, Based on Low-Ceiling Ad Hoc Aerial Photographs

Abstract The article outlines the possibilities for assessing geological conditions related to fording the beds of large lowland rivers, based on low-ceiling ad hoc aerial photos, and the current state of the art on the utilization of remote-sensing methods in geological and engineering studies. The conducted research provided a confirmation that a set of remote-sensing sensors installed onboard an aerial vehicle enables recording images, the analysis of which allows determining the geological and engineering conditions of lowland riverbed zones, to the extent adequate to make decisions on crossing them.