Abstract
The runoff of the Selenga R., the largest tributary of Lake Baikal, in recent two decades corresponds to a low-water period. Such decrease can be due to the global climate processes, which have an effect on the amounts of precipitation onto and evaporation from Selenga drainage basin, which is located in arid climate zone. The adaptation of Ecomag software complex to simulating river runoff in the Selenga Basin based on global databases (relief, soils, vegetation, and weather information) is described. The model was calibrated and verified, and the statistical estimates of calculation efficiency were constructed. The obtained model of runoff formation in the Selenga Basin was used to assess the possible changes in the climate and water regime in the XXI century with the use of data of global climate models under different scenarios of greenhouse gas emissions. Throughout the XXI century, the Selenga R. runoff may decrease by 10–40%, depending on the forecasted climate conditions.
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Original Russian Text © V.M. Moreido, A.S. Kalugin, 2017, published in Vodnye Resursy, 2017, Vol. 44, No. 3, pp. 275–284.
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Moreido, V.M., Kalugin, A.S. Assessing possible changes in Selenga R. water regime in the XXI century based on a runoff formation model. Water Resour 44, 390–398 (2017). https://doi.org/10.1134/S0097807817030149
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DOI: https://doi.org/10.1134/S0097807817030149