Morphometric Analysis of the Sokolovsky Reservoir Catchment Area Using GIS-Technologies

Abstract

The purpose is to assess the current parameters of the Sokolovsky reservoir catchment on the Kundryuchya River. Materials and methods. Based on the digital surface model (DSM) of ALOS WORLD 3D, some of the main Sokolovsky reservoir catchment morphometric parameters have been identifi ed. Preprocessing of the DSM has been performed to minimize the infl uence of woody vegetation and buildings on the height and slope values. The accuracy of the DSM conversion has been estimated. The anthropogenic transformation level of the Sokolovsky reservoir basin has been determined according to the Landsat-8 satellite image. The classifi cation accuracy has been evaluated based on the confusion matrix. Results and discussion. Data on the area, perimeter, maximum length, and width of the basin have been obtained; the average, minimum, maximum slope, average, minimum, and maximum height of the basin above sea level, erosional fragmentation density, and other aspects have been determined. Conclusion. The geoinformation analysis results have shown that the Earth remote sensing data used in the study are applicable to the assessment of small plain reservoir basin morphometric parameters.