ESTIMATION OF RUN-OFF FROM THE SMALL MOUNTAIN DRAINAGE BASINS USING THE MODEL OF RUN-OFF FORMATION
Abstract
Complex approach to the estimation of runoff from the small catchments is suggested which makes it possible to consider the specific features of runoff formation in the mountains. River flow modeling is based on the «Hydrograph» model created by Yu. Vinogradov. The object of research is the Us River drainage basin (the right tributary of the Yenisei River) located in the middle and low mountains of the West Sayan. The authors suggested the technique of pluviometric gradients calculation based on the correlation analysis of daily precipitation data for warm and cold periods. The trends of the altitudinal distribution of precipitation were revealed. Areas with similar conditions of runoff formation – runoff forming complexes (RFC) – were identified basing on the mesoscale landscape map. Quantitative characteristics of soils and vegetation cover for each runoff forming complex (RFC) were used as parameters for modeling. According to the results of modeling the convergence of calculated and observed hydrographs becomes considerably higher if the pluviometric gradients and RFC characteristics are taken into account.
About the Authors
G. V. Pryakhina
St.Petersburg State University, Institute of Earth Sciences
Russian Federation
Russian Federation
Head of the Department of Land Hydrology, Associate Professor, PhD. in Geography
E. S. Zelepukina
St.Petersburg State University, Institute of Earth Sciences,
Russian Federation
Russian Federation
Department of Physical Geography & Landscape Design, Senior Lecturer, PhD. in Geography
S. A. Zhuravlev
St.Petersburg State University, Institute of Earth Sciences
Russian Federation
Department of Land Hydrology, Associate Professor, PhD. in Geography
Russian Federation
Department of Land Hydrology, Associate Professor, PhD. in Geography
T. N. Osipova
St.Petersburg State University, Institute of Earth Sciences
Russian Federation
Russian Federation
Department of Climatology and Environmental Monitoring, Associate Professor, PhD
N. I. Amburtceva
St.Petersburg State University, Institute of Earth Sciences
Russian Federation
Russian Federation
Department of Physical Geography & Landscape Design, Senior Lecturer, PhD. in Geography
T. A. Vinogradova
St.Petersburg State University, Institute of Earth Sciences
Russian Federation
Department of Land Hydrology, Associate Professor, PhD. in Geography
Russian Federation
Department of Land Hydrology, Associate Professor, PhD. in Geography
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Review
For citations:
Pryakhina G.V., Zelepukina E.S., Zhuravlev S.A., Osipova T.N., Amburtceva N.I., Vinogradova T.A. ESTIMATION OF RUN-OFF FROM THE SMALL MOUNTAIN DRAINAGE BASINS USING THE MODEL OF RUN-OFF FORMATION. Vestnik Moskovskogo universiteta. Seriya 5, Geografiya. 2017;1(1):29-37. (In Russ.)
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