Holistic Approach to Flood Mitigation in Nova Scotia

The third United Nation World Conference on Disaster Risk Reduction recognized the importance of understanding disaster risks as result of the combination of not only natural hazards and infrastructure capacity but also social... [ view full abstract ]

The third United Nation World Conference on Disaster Risk Reduction recognized the importance of understanding disaster risks as result of the combination of not only natural hazards and infrastructure capacity but also social vulnerability, exposure levels, and emergency preparedness. Understanding these factors and their combined effect is fundamental for assessing risks, preventing disasters, mitigating damages and preparing for emergencies.

In Atlantic Canada, populations at risks include First Nation communities and coastal settlements located in the Bay of Fundy (home to the highest tides in the world).  Holistic flood risk management approaches in this region have focused on determining the priorities and needs of stakeholders, identifying vulnerabilities, evaluating the suitability of approaches such as retreat, protection and adaptation; and enhancing capacity for resilience. Complex computer modeling has also shown that the most effective approaches involve retreat, resilience, or other “soft” approaches to disaster management. 

This presentation aims to provide examples of holistic flood management approaches and softer flood mitigation techniques in the province of Nova Scotia. The discussion will also address the benefits, methodologies, and challenges for implementing flood forecasting programs to the local level in Nova Scotia and Atlantic Canada using calibrated hydrologic and hydraulic models and real-time rainfall forecasts from Environment Canada.