- This project is initially starts as a part of the International Research Training Group “Complex Terrain and Ecological Heterogeneity” (TERRECO) (GRK 1565/1) funded by the German Research Foundation (DFG).

- The authors would like to thank Prof. Bernd Huwe for his efforts of checking the flow of the model and the result.

- Authors would like to thank Mohammad Fereshtehpour from Water Resources Engineering, School of Civil Engineering, University of Tehran for his bug reporting and his valuable advices to solve the bug.
