A Study on the Response of Flood Vulnerability to Changes in IDF Characteristics across Major River Basins

As climate change intensifies the variability of precipitation patterns, understanding the shifts in Intensity-Duration-Frequency (IDF) characteristics is becoming essential for sustainable water resource management. This study aims to investigate the long-term trends of extreme rainfall events across the major river basins of South Korea and evaluate their potential implications for regional flood risk.

The research framework focuses on identifying the transition of rainfall intensities by comparing historical observations with future climate projections. By analyzing how the relationship between rainfall duration and frequency evolves, we expect to characterize the changing nature of hydrologic extremes in different geographical contexts. Furthermore, this study explores the link between these shifting IDF curves and their impact on basin-scale flood responses, aiming to provide a comprehensive assessment of infrastructure resilience.

The anticipated findings will offer a fundamental basis for understanding hydro-climatic risks and contribute to developing more adaptive flood mitigation strategies. This work serves as a preliminary step toward bridging the uncertainty in climate data and practical engineering applications for future-ready disaster management.