Hydrological Regimes of Mountain Glaciers at the Regional Scale
https://doi.org/10.31857/S2587556621030080
Abstract
For the river basins of the snow-glacial type of runoff formation, a scientific and informational basis developed for calculating components of the annual water balance equation (runoff, precipitation, evaporation, dynamic water reserves). It includes: (a) determination of the average and weighted average parameters of quasihomogeneous glacier groups by structuring or classifying the initial set of Ngl glaciers above the hydrological point; (b) recommendations for calculating specific layers of evaporation and precipitation, and average values of air temperature and water vapor pressure in air as a function of altitude; (c) composition of glacier surface types used for calculating water balance during the ablation period; (d) determining ablation, precipitation, and evaporation volumes for Ngl glaciers; (e) results of calculating the averages for 30-year time intervals of the water balance components, which related for 26 Eurasian river basins with glaciers area ranging from 102 to 14113 km2. The deviation of the measured annual runoff from that calculated by the water balance equation ranged from –1.8 to 9.4%.
Keywords
water balance,
glaciers runoff,
Eurasia,
modeling,
glaciers classification,
ablation,
precipitation,
evaporation
Supporting agencies: The research was carried out within the framework of the state-ordered research themes of the Institute of Geography RAS nos. 0148-2018-0008 and 0148-2019-0004.
About the Author
V. G. Konovalov
Institute of Geography, Russian Academy of Sciences
Russian Federation
Russian Federation
Moscow
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For citations:
Konovalov V.G. Hydrological Regimes of Mountain Glaciers at the Regional Scale. Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya. 2021;85(3):368-379. (In Russ.) https://doi.org/10.31857/S2587556621030080
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