Model of river flow routing on a continental scale with variable flow velocity

Abstract

In the latest version of the climatic model of river flow formation, water transport along the river network to the mouth was carried out for each section of the Lena River and its tributaries at its constant rate. This paper presents two approaches to routing surface runoff with time-varying flow rates. The use of these approaches may allow the model to represent not only average multi-year flow rates, but also the ability to simulate floods and short-term fluctuations in river flow. Two numerical experiments were conducted: simulations of river flow with constant and variable velocities.