Improving Flood Risk Evaluation through Cross-Sector Sharing of Richer Data

Improving Flood Risk Evaluation through Cross-Sector Sharing of Richer Data

Canadian Water Network, Insurance Bureau of Canada

Improving Flood Risk Evaluation through Cross-Sector Sharing of Richer Data

Large-scale flood risk models used by Canada’s insurance sector currently use low-resolution topographic data as inputs, and also give limited consideration to flood mitigation infrastructure or defense measures that have been implemented by Canadian municipalities. In a comparative study undertaken by Canadian Water Network and the Insurance Bureau of Canada, incorporating higher resolution topographic data and flood defense measures in these models created a clearer picture that can significantly reduce the level of uncertainty in the resultant flood hazard maps.

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