Геоморфологическое районирование на основе цифровых моделей рельефа (по данным SRTM для Верхнего Поднепровья)

Abstract

The methodology was proposed for the distinguishing of geomorphological areas on the map of the surface slopes, created from SRTM by visualization tools. Such areas are considered as parts of the image that differ in the ratios of different slopes and their relative position in space (“textureˮ). The scheme of geomorphological zoning of the Upper Dnieper basin (left bank) was built. Forty geomorphological regions with an average area of about 2.25 km 2 were allocated. It was shown that the main internal differences of the topography in the region is consistent with the regional geomorphological zonation schemes based on traditional cartographic materials. Identified differences relate to the allocation of geomorphological areas of alluvial and glacio-fluvial plains corresponding to the wide sections of river valleys. Topographic differentiation was caused by neotectonic movements, geological structure, paleogeographic peculiarities of the Quaternary period. Information was provided about the differences of geomorphic terrain regions that are not available directly from SRTM data, in particular on the distribution of density of the river network.