St. Lawrence River Bank Erosion and Flood Hazard Analysis

A geospatial information base for assessing erosion and flood risks along the St. Lawrence River's fluvial section. The dataset includes shoreline classification mapping, condition assessments of artificial structures, and erosion state documentation for vulnerable sectors. It is supported by project reports analyzing hydro-climatic factors and community adaptation needs from 2018 workshops.

Use Cases

• Analyze shoreline classification mapping to identify types of banks and their level of artificialization for risk zoning.
• Assess degradation conditions of artificial structures to prioritize maintenance and reinforcement efforts.
• Study erosion state documentation for natural or artificial segments to model future erosion hazards.
• Use image quality sheets detailing shoreline characteristics and geomorphological processes to validate local erosion dynamics models.
• Consult hydro-climatic factor reports covering past trends and future projections to 2050 and 2080 for climate resilience planning.

Strengths

• Includes geospatial data, detailed image quality sheets, and comprehensive project reports describing methodology.
• Data supports analysis from local geomorphological processes to large-scale hydro-climatic phenomena.
• Project incorporates findings from four regional consultation table workshops held in fall 2018.

Limitations

• Data is provided in non-tabular formats (JPG, PDF, KMZ, FGDB/GDB, HTML), requiring specialized tools for analysis.
• Sample data and specific row/column counts for structured analysis are unavailable.
• Primary data collection appears focused on specific vulnerable sectors, not the entire river section uniformly.

Provenance

Source

Laboratoire de Géomorphologie Terre-Mer du Département de Géomorphologie de l'Université Laval and Ouranos.

Collection Method

Shoreline mapping, field documentation, and analysis of hydro-climatic factors; community needs gathered via 2018 regional consultation workshops.

Time Range

Includes recent past analysis and future projections for 2050 and 2080; workshop data from fall 2018.

Freshness

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Geography

Fluvial section of the St. Lawrence River, covering sectors like Haut-Saint-Laurent — Greater Montreal, Lac Saint-Pierre, and the fluvial estuary.