Regional Frequency Analysis

Regional Frequency Analysis is a method used by hydrologists and engineers to estimate how often certain events, like heavy rainfall or floods, might occur at different locations within a specific area. Instead of relying solely on local data, they analyze information from multiple nearby sites with similar characteristics to identify general patterns. This approach improves the reliability of predictions, especially in places with limited historical data, by leveraging regional trends. It helps communities better prepare for extreme events by providing more accurate estimates of their likelihood and intensity.