Western University researcher develops Canadian floodplain map to show impact of climate change flooding
The maps, created by engineering professor Slobodan Simonovic, are a visual distillation of almost 150,000 reference documents - including current and historical rainfall and snow-melt runoff data, topographic analyses, urbanization factors that impede effective drainage and a range of climate projections.
Simonovic said other vulnerable streams are found in parts of northern Ontario, Quebec and British Columbia, the Mackenzie River in Northwest Territories, and much of the island of Montreal.“It means basically more land will be flooded, more land will be under water during these extreme events,” he said, adding that 30 per cent more of Canada could be flooded by 2100, with a flood depth increase of up to 60 per cent.
Simonovic, an award-winning flood expert, said understanding the location and extent of flood risk can help insurers, engineers, homebuilders, conservation authorities, and governments at every level plan better policies and stronger flood protection.
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