Modeling streamflow of the Olenek and Indigirka rivers using land surface model SWAP

Abstract

The potentialities of a technique for simulating the runoff from the Olenek and Indigirka river basins located in the Republic of Sakha (Yakutia) under the most severe climate conditions are investigated. The technique is based on a land surface model SWAP in combination with input data based on global data sets on land surface parameters and meteorological forcing data derived from observations from meteorological stations situated within or near the river basins. To improve the calculation quality, an optimization procedure was applied to the key model parameters, including both land surface characteristics and (for the Olenek R.) the correction factors for precipitation and incoming radiation.