Incorporating dynamic ice jam modelling into flood risk assessment and mapping

加拿大的洪水风险评估和测绘传统上没有将冰塞洪水纳入其中

Flood risk assessment and mapping in Canada has not traditionally incorporated an ice jam flooding component. Extending flood risk management to include ice impacts is, however, crucial for a true assessment of flood risk. This is a new research collaboration between the public and private sector. Karl-Erich Lindenschmidt, from the Global Institute for Water Security at the University of Saskatchewan, brings expertise in river ice modelling and flood risk assessment. The industrial partner, Stantec, is an architecture and engineering company that provides technical support to government agencies, property developers, insurance companies and communities regarding natural and manmade hazards and disasters. The Alberta offices of Stantec would like to extend their consulting repertoire to include ice jam flooding events in their flood risk assessment and mapping capabilities, which is a novel approach in Canada. The specific objectives of this research are to: -extend current ice-jam flood frequency analysis techniques using river ice modelling tools to develop an ice-affected flood frequency curve -map flood extents of various ice jam flood water levels to assess the flood hazard and risk. -incorporate ice jam modelling into flood hazard and risk assessment to provide a basis for effective flood mitigation programs. Benefits to Canada include: (i) provision of a novel tool for a company with offices across Canada to incorporate ice jam modelling into flood hazard and risk assessment and (ii) better understanding the risk of ice jam flooding to property and human life and to develop effective flood mitigation and prevention strategies.