Tretyak S. Monitoring of hydrographic objects using means of Earth remote sensing and geoinformation technologies

In the dissertation work the method of study of displacement of the channels of the Dniester River and its right bank and left-bank influx on the basis of topographic maps, space images and special maps with the processing of all materials in the ArcGIS software environment is given. The essence of channel processes and methods of their research are considered. The influence of geological structures on shifts of the Dniester river channels and its tributaries, from the riverhead to the town of Zalishchyky, where the Dniester river flows through a canyon, was analyzed. Based on the simplified Molodensky transformations, the influence of errors in the transition parameters on the accuracy of transformation when switching from one coordinate system to another was determined. It was found that some expressions do not meet stability criteria determined by the authors. An expression which can be used for determining stability was suggested, which includes floodplain width and river channel width.