Assessing River Runoff Components in the Mountain Crimea. 1. The Runoff of Small Rivers

• Published in: Water resources Vol. 51; no. 6; pp. 882 - 894
• Main Authors: Gubareva, T. S., Amelichev, G. N., Gartsman, B. I., Tokarev, S. V., Vakhrushev, B. A., Naumenko, V. G., Amelichev, E. G., Vakhrushev, I. B.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 2024; Springer Nature B.V
• Subjects: Aquatic Pollution; Base flow; Catchment area; Catchments; Components; Earth and Environmental Science; Earth Sciences; Hydrogeology; Hydrological Problems of Water-Scarce Regions; Hydrology/Water Resources; Mountains; Outlets; Recharge; River basins; River discharge; River flow; River runoff; Rivers; Runoff; Tracers; Waste Water Technology; Water discharge; Water Management; Water Pollution Control; river catchments; EMMA mixing model; recharge sources; karst; chemical tracers; Mountain Crimea
• ISSN: 0097-8078; 1608-344X
• DOI: 10.1134/S0097807824701136

Water runoff components were evaluated for experimental river basins in the Mountain Crimea based on a two-tracer mixing model with three recharge sources. The identified recharge sources for river runoff in karstified catchments were found to include: epikarstic waters, soil-slope waters, and baseflow waters, circulating at the contact with underlying impermeable rocks. Epikarstic waters account for a considerable portion of the runoff of small rivers. Their proportions in the outlet sections increase during floods and steadily increase with an increase in water discharge, obeying logarithmic relationships. The proportions of baseflow water decrease compared with those of epikarstic waters.