1. Department of Geography, Ferdowsi University of Mashhad, Mashhad, Iran
2. Geographic Information Science/System and Remote Sensing Laboratory (GISSRS: lab), Ferdowsi University of Mashhad, Mashhad, Iran
3. Department of Civil Engineering, The University of Hong Kong, Pokfulam,Hong Kong, China
4. Department of Geography, Tarbiat Modares University, Tehran, Iran