St. Lawrence River Bank Mobility Geospatial Study

Six distinct bank mobility issues across ten sites in the fluvial St. Lawrence River were analyzed. The study, mandated by the MELCCFP and conducted by Université Laval's Laboratoire de Géomorphologie Terre-Mer, produced a geospatial database with deliverables including historical coastline mapping and drone imagery products.

Use Cases

• Analyze historical coastline feature migration rates to model hydrogeomorphological trajectory of the river system.
• Use drone imagery-derived surface models to assess erosion dynamics at high soft cliff sites like Cap Lévrard.
• Apply geohistorical mapping data to evaluate the impact of docks on sedimentary transit at Portneuf and Pointe-Platon.
• Study geospatial data on archipelago sites (Île Marie, Île de Grace) to understand shoreline mobility in the seaway.

Strengths

• Study addresses six specific, high-impact mobility issues identified from prior shoreline characterization.
• Data combines geomorphological and geohistorical components for a multi-scale monitoring approach.
• Analysis covers ten distinct sites of interest across a densely populated and highly artificial river section.

Limitations

• Dataset structure and specific variables (columns) are not explicitly defined in the available metadata.
• Primary deliverables are in report and geospatial data formats, requiring GIS expertise for full analytical use.

Provenance

Source

Laboratoire de Géomorphologie Terre-Mer, Département de Géomorphologie, Université Laval.

Collection Method

Geospatial data collection and processing, combining geomorphological fieldwork, historical mapping, and drone imagery analysis.

Time Range

Study conducted under the 2013 2020 Action Plan on Climate Change.

Freshness

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Geography

Fluvial section of the St. Lawrence River, focusing on ten specific sites from Île Marie to Beauport Bay.