Canadian Flood Susceptibility Trends and Extremes from 2000 to 2023

A collection of raster datasets from Natural Resources Canada capturing temporal patterns of historic flood events from 2000 to 2023. The layers include extreme wet and dry year analyses, trend slopes, susceptibility envelopes, and current estimates to support decision-making for planning and management. Data is provided in formats including WMS, HTML, and JSON.

Use Cases

• Identify areas of increasing or decreasing flood susceptibility based on the trend slope analysis.
• Assess flood risk under current conditions using the current flood susceptibility and interquartile range layers.
• Plan for extreme hydrological events using the Generalized Extreme Value analysis of wet and dry years.
• Screen areas for long-term management based on the flood susceptibility envelope derived from extremes.

Strengths

• Covers a 24-year temporal range from 2000 to 2023.
• Provides multiple derived analyses including trend slopes, extremes, and current susceptibility estimates.
• Published by Natural Resources Canada, an authoritative government organization.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to its source, open_canada.

Provenance

Source

Natural Resources Canada

Collection Method

Derived from flood susceptibility maps, processed by NHN WU using Generalized Extreme Value analysis.

Time Range

2000 to 2023

Freshness

Last updated 2026-04-24 11:30:55.309976; freshness should be verified.

Geography

Canada (likely, based on platform and organization)