Qatar, a low-lying arid peninsula, is increasingly exposed to coastal flooding and sea-level rise (SLR) driven by climate change, posing potential threats to its infrastructure, economy, and population. This study presents a geospatial assessment of flood and SLR risks under both present and future climate scenarios. Utilizing a GIS-based multi-criteria decision-making (MCDM) approach, the analysis integrates hydrological, topographical, and socioeconomic parameters to identify areas of higher risk. Results indicate that approximately 15–24% of Qatar's land area is currently highly susceptible to flooding, these vulnerable areas are mostly situated in the northern and northeastern coastal areas. Future projections reveal a progressive intensification of flood risk, particularly under high-emission scenarios. Projections under Shared Socioeconomic Pathways (SSP1–2.6 to SSP5–8.5) indicated land loss ranging from 0.83% to 1.82% and economic damages estimated between 10.33 and 22.92 billion USD by the end of the 21st century. Moreover, the population in coastal areas exposed to SLR-related hazards is approximately 168,481 individuals under SSP5–8.5 and 73,916 under SSP1–2.6 by the year 2100. These findings suggest the urgent need for climate-resilient urban planning, comprehensive coastal protection measures, and integrated flood risk management to safeguard Qatar's critical infrastructure, ecological resources, and vulnerable communities.
Bilal et al. (Mon,) studied this question.
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