Long-Term Water Level Fluctuations in Terminal Lakes of Central Asia

This paper discusses the formation of level regimes in lakes located in arid parts of Central Asia. Water resource formation specifics in the studied region include the presence of runoff formation and dispersal zones in river basins. When rivers leave mountainous areas, the dispersal of runoff occu...

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Bibliographic Details
Published in:Geography and natural resources 2022-11, Vol.43 (Suppl 1), p.S15-S21
Main Authors: Bolgov, M. V., Kashnitskaya, M. A., Zaitseva, A. V., Pozdnyakov, S. P., Ping, Wang
Format: Article
Language:English
Subjects:
Anthropogenic factors
Catchment basins
Dispersion
Earth and Environmental Science
Economic Geography
Fluctuations
Geography
Human influences
Hydrologic regime
Hydrology
Lakes
Landscape/Regional and Urban Planning
Moisture content
Mountain regions
Mountainous areas
Probability theory
River basins
Rivers
Runoff
Seepage
Seepage loss
Stochastic models
Water balance
Water content
Water level fluctuations
Water levels
Water resources
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Summary:This paper discusses the formation of level regimes in lakes located in arid parts of Central Asia. Water resource formation specifics in the studied region include the presence of runoff formation and dispersal zones in river basins. When rivers leave mountainous areas, the dispersal of runoff occurs due to seepage losses from river channels and the remaining waters fill drainless depressions, thus forming enclosed or terminal lakes. Water levels in such lakes depend entirely on water content fluctuations in rivers, and their sizes fluctuate in a wide range, up to completely drying up. Factors determining the hydrological regimes of terminal lakes whose catchment basins are located in the Russian Federation, Mongolia, and the People’s Republic of China are examined. Approaches to the stochastic modeling of water balance components in lakes and probabilistic forecasts of their long-term water level fluctuations are presented. Using the examples of the Torey Lakes (the Russian Federation) and lakes located in the Heihe River basin (the People’s Republic of China), the level regime formation and its probabilistic forecasting are described, including situations involving severe anthropogenic impacts.
ISSN:1875-3728
1875-371X
DOI:10.1134/S1875372822050067