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Flood Mapping - Flood Susceptibility Index updates #491

@heamart

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@heamart

On Flood Mapping under flood map and dataset gallery update card:

  1. Flood susceptibility index to Flood susceptibility mapping

On Flood susceptibility index:

  1. update title to: Flood susceptibility mapping
  2. update text to:

Flood susceptibility mapping is a national map series that shows the likelihood of flooding across different areas in Canada over multiple decades.

This updated version improves on an earlier one-time map by incorporating yearly and seasonal data, along with a larger set of known flood locations used for model training. These enhancements make it possible to assess how flood susceptibility varies from year to year, identify long-term trends, detect years that were unusually wet or dry, and predict possible flood susceptibility under future climate change scenarios.

The flood susceptibility mapping collection contains:

  • historic yearly maps (2000–2023) showing the calibrated probability of flood susceptibility.

  • future climate scenarios of flood susceptibility

  • decision ready maps, showing trends of increasing or decreasing flood susceptibility, extreme wet and dry years, a flood envelope and probable present day flood susceptibility.

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