This document serves as the official national guide for managing flood risks and estimating rainfall across Australia. Published by Engineers Australia, it provides a comprehensive framework for practitioners to calculate the likelihood and impact of water-related events using updated meteorological data and hydroinformatics. A significant focus is placed on climate change, offering specific methods to adjust historical design curves to reflect modern warming levels and rising sea heights. The text also outlines risk-based design strategies, utilizing economic tools like cost-benefit analysis to help authorities plan resilient infrastructure. Through detailed technical chapters, it explores the data cycle, from gathering field surveys and streamflow records to modeling complex catchment responses. Finally, the guide emphasizes the importance of standardised terminology, such as Annual Exceedance Probability, to ensure clear communication between engineers and the public.
