The introduction of landscape Evolution Models and their Applications with Emphasis on the CAESAR-Lisflood Hydrodynamic Model

Landscape evolution models (LEMs) are physically and process based models which attempt to emulate the active processes that form the landscape. Most of these models simulate hydrological processes, river processes and hillslope processes; however other processes (glacial, aeolian, and tectonic) are sometimes included as well. LEMs typically work at watershed scale (10 - 1000 km2) to continuous and event. These models are providing possibility comprehensive comparison between simulation results of watershed response to the changes environmental (which including a wide range of processes). LEMs have a different type that one of the most important of LEMs is the CAESAR-Lisflood model. This mentioned model is the current version for CAESAR-Lisflood, which the physical based component of its surface flow has adopted, simplified numerical solution of the shallow water equations, from the LISFLOOD-FP hydraulic model. In addition, CL hydrodynamic model simulates two-dimensional geomorphologic evolution of river basin and flood plain under unsteady flow conditions.