Assessing Extreme Rainfall Variation and its Relation to Flood Hazard in Sri Lanka

Abstract

Climate change intensifies extreme rainfall and flood hazards, significantly impacting tropical nations like Sri Lanka. The research reveals increased extreme rainfall across the island, leading to a wetter environment in dry and intermediate zones. An increasing rainfall pattern in the Kelani River basin creates a probability of flooding, and nearly 16.4% of the lower basin is identified as highly susceptible to floods. The findings can contribute to improved disaster preparedness and mitigation efforts effectively.