Analysis of flood risk in the Chignecto Isthmus

This thesis explores the flood risk in the Chignecto Isthmus, a vulnerable area between New Brunswick and Nova Scotia, facing increasing threats including flooding due to climate change. The history of the flood in the area is provided and considered in simulations. Using the TELEMAC-2D model, various scenarios are examined, including the impact of tidal waves, storm surges, and different dyke configurations. The study demonstrates that while normal tides alone do not cause significant flooding, high tidal waves could cause inundation. The combination of the tides with storm surges poses a serious threat as well. By analyzing the effectiveness of raising existing dykes and adding new ones, the research provides insights into how these measures can significantly reduce flood risk and protect key infrastructure. The findings offer practical strategies for mitigating the flood in the region.