SWPT: An automated GIS-based tool for prioritization of sub-watersheds based on morphometric and topo-hydrological factors

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...

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Bibliographic Details
Published in:Di xue qian yuan. 2019-11, Vol.10 (6), p.2167-2175
Main Authors: Rahmati, Omid, Samadi, Mahmood, Shahabi, Himan, Azareh, Ali, Rafiei-Sardooi, Elham, Alilou, Hossein, Melesse, Assefa M., Pradhan, Biswajeet, Chapi, Kamran, Shirzadi, Ataollah
Format: Article
Language:English
Subjects:
Effective management
Geographic information systems
GIS
Hydrology
Landslides
Programming languages
Reliability analysis
Resource management
River basins
Soil water
SWPT
Water resources
Watershed prioritization
Watersheds
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Summary: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 topo-hydrological 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. [Display omitted] •SWPT is a python tool for prioritizing sub-watersheds.•SWPT was successfully applied in the Golestan watershed, Iran.•Topo-hydrological and morphometric factors were considered in SWPT.
ISSN:1674-9871
2588-9192
DOI:10.1016/j.gsf.2019.03.009