ON THE QUESTION OF USING GIS TOOLS IN THE STUDY OF PALEOVALLEY IN THE VERCHNY PRUT BASIN

This article is devoted to the complex issue of the use of GIS in the study of the stages of the formation of the water network of the rivers of the Ukrainian Carpathians, the identification and study of ancient flow valleys, morphogenesis and features of high terrace levels and paleovalleys in different periods of their formation. It is the use of new modern methods of digital mapping and geo-informational tools in research that allows us to look in a new way at the seemingly already known and defined problematic issues of the clarity of the stages of the origin and formation of the basins of the river systems of the Ukrainian Carpathians and their gradual stabilization within modern limits. It would seem that the position of leading specialists, Ukrainian geomorphologists (P. M. Tsis, K. I. Gerenchuk, M. S. Kozhurinoi, Y.S. Kravchuk, V. M. Klapchuk and others) has been clearly formulated for a long time thanks to the use of new geoinformation technologies and accessibility to modern software opens up new opportunities for its review and refinement. Currently, an important aspect of the study of basin systems of mountain regions, such as the territory of the Ukrainian Carpathians, is the application of not just a cartographic research method, with the corresponding results of visualization, zoning or the creation of appropriate map schemes, but the use of system analysis, thanks to GIS applications (TIN interpolation qgis) and the creation of appropriate models, which allows us to reveal in more detail the complex issues of the transformation of ancient valleys and their modern reflection in the relief of this territory. It is the ambiguous conclusions and results of previous researchers that encourage the use of new, more progressive methods, which will make it possible to better substantiate and determine how the processes of restructuring of the river network of the southeastern macroslope of the Ukrainian Carpathians took place, as well as to reveal the reasons for these changes. It is especially important to take into account and rely on changes in the configuration of the Upper Prut river system network at various stages of its functioning and development. This complex and not fully resolved issue, the transformation of ancient flow valleys in the Pliocene–Pleistocene period, is extremely important for the understanding of modern channel processes on the rivers of the Upper Pruth basin, as it still has a significant impact on the perception of the modern view of the river network of the studied basin and the inherited nature of macroforms riverbed in its separate sections. Keywords: GIS; digital topographic base of the Earth: SRTM; paleogeomorphological analysis; paleovalley Chornyy Cheremosh river; paleovalley Chornа Tysa river; paleovalley of the Lyuchka and Oslava rivers.