Spatial analysis of flood risk in Tabas watershed using satellite images and geographic information system (GIS)
Journal Title: Journal of Drought and Climate change Research (JDCR) - Year 2024, Vol 2, Issue 6
Abstract
Among the natural phenomena, flood can be the biggest cause of damage, which always endangers the lives and properties of people. One of the management measures which can play a significant role in reducing the damages is flood risk zoning. In this research, flood risk zoning has been done in the Tabas watershed. In general, the steps and this research were done in four steps the effective criteria in creating the risk of flooding were identified, and the relevant layers were prepared. In the next step, rasterization and standardization were done using fuzzy membership functions, then weighting of parameters was done using the ahp, and finally overlapping of the layers was done using fuzzy operators. The criteria of distance from river, slope, land use, rainfall, soil, dem and ndvi were respectively assigned the highest weight. Also, all fuzzy superposition operators have been used for flood risk zoning. Among these operators, the 0.9 gamma operator shows the best and most reasonable result, so this map was chosen as the final flood risk zoning. In the final map, the total area of high-risk areas is 15432.13 ha. According to the final map obtained, areas with very high flood risk are located in the eastern part of the studied area. Areas with low risk are mostly located in the plains, valleys and depressions with less slope. The method used in this study can be used in other studies such as zoning of earthquake risk potential, development zoning and spatial analysis of disease distribution.
Authors and Affiliations
Elham Yusefi; Mahdi Kaffash; mohsen shariati
Keywords
Related Articles
- EP ID EP754915
- DOI https://doi.org/10.22077/jdcr.2024.7489.1066
- Views 33
- Downloads 0
Removal Efficiency of Sugarcane Bagasse Biochar for Uptake of Sodium Ion from Aqueous Solution: Nonlinear isotherm and kinetics modelling
This research examines sodium removability from agricultural wastewater using sugarcane bagasse sorbents, which helps ease the pressure on water resources during droughts. The biochar was produced in an electric furnace,...
Performance of Different Genotypes of Barley (Hordeum Vulgare L.) Under Normal and Saline Environments
In this study, as an action to reduce energy consumption and mitigate climate change impacts, creating a safer greenhouse structure, reducing the cost of construction and better management of greenhouses, the use of unde...
Monitoring Changes in Rice Cultivation Area using Multi-Temporal Satellite images (Case Study: Beiranshahr Region, Iran)
The cultivation of crops with high water demand in arid and semi-arid regions can seriously threaten water resources. In the Beiranshahr region, western Iran, based on various factors, including high profit and short gro...
Assessing Groundwater Dynamics in the Kabul Basin: Implications for Sustainable Management
Groundwater, particularly from aquifers in Afghanistan's arid and semi-arid eastern basin, has long served as a primary water source for industry, agriculture, and domestic use. However, recent decades have witnessed a t...
Investigating the Condition of Iran's Temperature Changes Compared to the Past Long-Term Climatic Standard Period
This study uses a three-level analytical approach to investigate temperature changes in Iran and their implications for the agricultural sector. At the first level, a quantitative analysis of temperature changes was cond...