Risk Management: Integrating Flood Frequency Analysis and Climate Adaptation for Community Resilience Basri Badyalina, Oswald Timothy Edward*, Fatin Farazh Ya^acob
Universiti Teknologi MARA Malaysia
Abstract
The escalating impacts of climate change on hydrological patterns necessitate proactive measures to mitigate flood risks and enhance resilience in vulnerable regions. This study investigates the implications of climate change on flood frequency in the Segamat River basin, Malaysia, utilizing flood discharge data derived from the Generalized Extreme Value (GEV) distribution model. The flood discharge values corresponding to return periods of 2, 10, 25, 50, 100, and 200 years are analyzed to discern the magnitude and frequency of potential flood events. Results reveal a notable escalation in flood magnitude with longer return periods, underscoring the increasing severity of extreme flood events. These findings have significant implications for flood risk management and adaptation planning. To address evolving flood risks, a comprehensive approach is proposed, encompassing infrastructure resilience enhancement, nature-based solutions implementation, improved drainage and flood management systems, community education and preparedness initiatives, integration of flood risk considerations into land use planning, supportive policy development, and collaborative governance and stakeholder engagement. By adopting such measures, communities can enhance their resilience to climate change-induced flood hazards and minimize the adverse impacts of future flood events on infrastructure, livelihoods, and ecosystems.
Keywords: Flood frequency analysis, Climate change, Segamat, L-moment methodology, Generalized Extreme Value distribution, Flood risk assessment, Return period analysis
