Zoning and Flood Management in Coastal Areas (Case Study: The Coasts of Hormozgan province)
نویسندگان
1 Department of Environment, Faculty of Natural Resources, Lorestan University, Khorramabad, Iran,
2 Ph.D. student of oceanography, Researcher of the Department of Environmental Geography Studies, Madedanesh Marine Specialized Research and Studies Center
doi
10.22034/ijcoe.2025.465830.1088چکیده
The dangers of floods worldwide have caused this environmental event to be called one of the major natural disasters. Today, remote sensing data with accuracy and low cost play a critical role in identifying flood-prone areas and flood zoning in coastal management. In the present study, the flooded and flood-prone areas on the coasts of Hormozgan province were investigated according to the intensity of the rainfall system in the last days of April 2024 by using the GRDH images of Sentinel-1 satellite and the Otsu thresholding method. The results revealed that the area and percentage of flooded zones on April 17 occupied the largest area (28.15 km2) of the coastal surface and the highest average rainfall was also related to the same date with an average of 35.05 mm. The greatest extent of changes in flood zones is also on the coastline and near the border of the region, which indicates the high sensitivity and susceptibility of the coastal areas to flooding in this region. According to the obtained results, about 1448.36 km2 of the surface area is affected by flood zones, and the largest area is assigned to the high risk category with an area of 669.30 km2. According to the obtained results, it is possible to manage and control floods spatially and temporally on the coasts and prevent the consequences. Therefore, in the field of coastal flood management, it is necessary to pay attention to flood control methods, a suitable model to improve water supply sources and improve water security for drinking and health purposes, as well as appropriate bioengineering methods to stabilize soil and control erosion.
