SWPT:An automated GIS-based tool for prioritization of sub-watersheds based on morphometric and topo-hydrological factors |
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| Institution: | 1. Geographic Information Science Research Group, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;2. Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;3. Faculty of Natural Resources, University of Tehran, Karaj, Iran;4. Department of Geomorphology, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran;5. Department of Geography, University of Jiroft, Kerman, Iran;6. Faculty of Natural Resources, University of Jiroft, Kerman, Iran;7. Aquatic Ecodynamics, UWA School of Agriculture and Environment, The University of Western Australia, Crawley, WA, 6009, Australia;8. Department of Earth and Environment, AHC 5-390, Florida International University, USA;9. Centre for Advanced Modelling and Geospatial Information Systems (CAMGIS), Faculty of Engineering and IT, University of Technology Sydney, NSW, 2007, Australia;10. Department of Energy and Mineral Resources Engineering, Choongmu-gwan, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 05006, Republic of Korea;11. Department of Rangeland and Watershed Management, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran |
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| Abstract: | The sub-watershed prioritization is the ranking of different areas of a river basin according to their need to proper planning and management of soil and water resources.Decision makers should optimally allocate the investments to critical sub-watersheds in an economically effective and technically efficient manner.Hence,this study aimed at developing a user-friendly geographic information system(GIS) tool,Sub-Watershed Prioritization Tool(SWPT),using the Python programming language to decrease any possible uncertainty.It used geospatial-statistical techniques for analyzing morphometric and topohydrological factors and automatically identifying critical and priority sub-watersheds.In order to assess the capability and reliability of the SWPT tool,it was successfully applied in a watershed in the Golestan Province,Northern Iran.Historical records of flood and landslide events indicated that the SWPT correctly recognized critical sub-watersheds.It provided a cost-effective approach for prioritization of sub-watersheds.Therefore,the SWPT is practically applicable and replicable to other regions where gauge data is not available for each sub-watershed. |
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| Keywords: | SWPT Watershed prioritization GIS Effective management |
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