Implementation of TETIS Hydrologic Model into the Hillslope Link Model Framework

Abstract

This communication introduces HLM-Tetis, which is a model structure coupled to the Hillslope Link Model (HLM) framework developed by the Iowa Flood Center. The model was designed to improve some limitations of previous HLM model structures. The following changes have been made: (1) modules to simulate snow processes; (2) better flexibility to simulate infiltration and percolation; (3) more flexibility to derive total runoff from the partitioning of overland flow, interflow and baseflow components. We show applications of the model in flood events at five basins in Iowa where previous model structures had performance limitations.