Flood susceptibility mapping in anthropogenic wetland area, Shadegan County, Southwest of Iran
International Journal of Disaster Resilience in the Built Environment
ISSN: 1759-5908
Article publication date: 10 October 2022
Issue publication date: 13 February 2024
Abstract
Purpose
Shadegan County as a wetland area was selected because of its susceptibility to flooding hazards and inundation. The purpose of this paper is to analyze flooding hazard based on the analytical hierarchy process methodology.
Design/methodology/approach
The eight influencing factors (slope, distance from wetland, distance from river, drainage density, elevation, curve number, population density and vegetation density) were considered for flood mapping within the Shadegan County using analytical hierarchical process, geographical information system and remote sensing. The validation of the map was conducted based on the comparison of the historical flood inundation of April 21, 2019.
Findings
The results showed that around 32.65% of the area was under high to very high hazard zones, whereas 44.60% accounted for moderate and 22.75% for very low to the low probability of flooding. The distance from Shadegan Wetland has been gained high value and most of the hazardous areas located around this wetland. Finally, the observed flood density in the different susceptibility zones for the very high, high, moderate, low and very low susceptible zones were 0.35, 0.22, 0.15, 0.19, and 0.14, respectively.
Originality/value
To the best of the authors’ knowledge, the flood susceptibility map developed here is one of the first studies in a built wetland area which is affected by anthropogenic factors. The flood zonation map along with management and restoration of wetland can be best approaches to reduce the impacts of floods.
Keywords
Acknowledgements
The authors would like to express their appreciation to the Department of Physical Geography at Shahid Beheshti University for using the geomorphology laboratory due to the soil analysis.
Citation
Khaleghi, S. and Jadmavinejad, A. (2024), "Flood susceptibility mapping in anthropogenic wetland area, Shadegan County, Southwest of Iran", International Journal of Disaster Resilience in the Built Environment, Vol. 15 No. 2, pp. 212-226. https://doi.org/10.1108/IJDRBE-03-2022-0028
Publisher
:Emerald Publishing Limited
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