Geomorphology in support of archaelogy and urban planning (the case of Sherbrooke city)
Poly-Geo’s geomorphologists are experts in natural landscapes, which they decode and depict with the help of maps, aerial photographs and digital terrain models (LiDAR). They are specialists in multi-date analysis, using aerial photography databases to reconstruct how environments evolve, whether natural or built. Keywords : Geomorphology / Archaelogy / sherbrooke
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In built environments, the geomorphologist’s expertise can be used to support archaeological research and land use planning. This was the reason that the City of Sherbrooke retained the services of Poly-Geo to:
- document the natural setting of the original site of the city, at the confluence of the Magog and Saint-François rivers;
- reconstruct the various phases of site development from the middle of the 19th century onward.
By carefully examining old maps and sets of aerial photographs dating back to the early 1930s, we were able to :
- identify natural surfaces that remained intact – alluvial terraces on the shores of the Saint-François River – with high prehistoric archaeology potential (1);
- subdivide the study area into some fifty zones based on the degree of ground disturbance and the relative age of the various phases of land use.
This type of study serves as a valuable tool for archaeologists in developing survey strategies and focusing the search for traces of human occupation. It also guides decision-makers in their land use planning and development work.