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Num. Meth. Prog., 2019, Volume 20, Issue 4, Pages 396–410 (Mi vmp976)  

A river routing scheme for an Earth system model

V. M. Stepanenkoa, A. I. Medvedevb, I. A. Korpushenkovb, N. L. Frolovab, V. N. Lykosovc

a Lomonosov Moscow State University, Research Computing Center
b Lomonosov Moscow State University Faculty of Geography
c Marchuk Institute of Numerical Mathematics of the Russian Academy of Sciences, Moscow

Abstract: A new version of the INM RAS-MSU land surface scheme is presented which includes a module for the thermo- and hydrodynamics of rivers. The river dynamics is described by the diffusion wave equations, whereas the river thermodynamics is simulated by the one-dimensional heat equation. The object-oriented implementation of the river routing scheme allows one to use arbitrary solvers of one-dimensional river dynamics problems, for example, the Saint-Venant equations. The snow cover thermodynamics is supplemented by the effects of liquid moisture percolation and freezing. The set of model updates significantly improved simulation of the annual cycle of water discharge and temperature for Severnaya Dvina river.

Keywords: Earth system model, land surface scheme, river network, snow melting.

DOI: https://doi.org/10.26089/NumMet.v20r435

Full text: PDF file (965 kB)

UDC: 551.5, 556
Received: 30.07.2019

Citation: V. M. Stepanenko, A. I. Medvedev, I. A. Korpushenkov, N. L. Frolova, V. N. Lykosov, “A river routing scheme for an Earth system model”, Num. Meth. Prog., 20:4 (2019), 396–410

Citation in format AMSBIB
\Bibitem{SteMedKor19}
\by V.~M.~Stepanenko, A.~I.~Medvedev, I.~A.~Korpushenkov, N.~L.~Frolova, V.~N.~Lykosov
\paper A river routing scheme for an Earth system model
\jour Num. Meth. Prog.
\yr 2019
\vol 20
\issue 4
\pages 396--410
\mathnet{http://mi.mathnet.ru/vmp976}
\crossref{https://doi.org/10.26089/NumMet.v20r435}


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