Geomorphological Evidence of High River Runoff in the Volga Basin during the Late Glacial

Large paleochannels are considered to be a geomorphological phenomenon. The landscape–geomorphological traces of large paleochannels on the floodplains of the Volga River basin are reviewed, the regularities in their distribution are considered, and an improved method of analyzing the river floodpla...

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Bibliographic Details
Published in:Doklady earth sciences 2022-10, Vol.506 (Suppl 1), p.S1-S6
Main Author: Ukraintsev, V. Yu
Format: Article
Language:English
Subjects:
Analysis
Digital Elevation Models
Digital imaging
Distribution
Earth and Environmental Science
Earth Sciences
Floodplains
Geomorphology
Image resolution
Landscape
Remote sensing
River basins
River discharge
River flow
River runoff
River valleys
Rivers
Runoff
Satellite imagery
Steppes
Valleys
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Summary:Large paleochannels are considered to be a geomorphological phenomenon. The landscape–geomorphological traces of large paleochannels on the floodplains of the Volga River basin are reviewed, the regularities in their distribution are considered, and an improved method of analyzing the river floodplain topography based on remote sensing data is proposed. Based on analysis of high-resolution satellite images and digital elevation models of the Volga River valleys, more than 1700 sites with large paleochannels have been mapped. The morphology of the paleochannel makes it possible to reveal the landscape and climatic differences between the northern and southern parts of the basin. The distribution of large paleochannels in the Volga River basin is likely indicative of the fact that the duration and severity of paleoclimatic episodes of high river runoff on the East European Plain was maximum in the area occupied by recent steppes and forest–steppes. To the north and south of this area, there were fewer episodes of high runoff, and therefore, not too many geomorphological traces were left in the river valleys.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X2260030X