This map locates the parts of the territory where the standards relating to coastal erosion, prescribed by the Government of Quebec, must apply. Coastal erosion constraint areas include protective strips where various interventions must be regulated. These areas are intended to be integrated into the MRC land use and development plan for land use planning and land use control, in accordance with the requirements of the Land Use Planning Act (A-19.1, art.5).**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

City of Trois-Rivières landslide zones**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

This map locates the parts of the territory where the standards relating to landslides, prescribed by the Government of Quebec, must apply. Landslide stress areas include, in addition to the embankment, protective bands at its top and base, where various interventions must be regulated. These areas are intended to be integrated into the MRC land use and development plan for land use planning and land use control, in accordance with the requirements of the Land Use Planning Act (A-19.1, art.5).**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

The Earth’s surface is in constant motion. Whether due to natural phenomena such as tectonic activity or volcanism, or because of human activities such as groundwater extraction or mining, the dynamism of the surface can have significant impacts on infrastructure and natural ecosystems. In recent years, increasing awareness of the potential risks related to ground motion has led to a demand for comprehensive and reliable information on these movements. The European Ground Motion Service (EGMS) was created in response to user needs voiced at the Copernicus User Forum. This product represents the bleeding edge of space-based remote sensing technology, using Synthetic Aperture Radar Interferometry (InSAR) data derived from Sentinel-1 to detect and measure ground movements across Europe with milimetre precision. The product is updated annually and can be used for a variety of applications; city, regional, or state authorities can use it to monitor the structural integrities of dams, bridges, railways, and buildings. It allows urban planners to make data-driven decisions about where to build new infrastructure by assessing the likelihood of natural hazards such as landslides or subsidence. Researchers can also use EGMS data to study the impacts of climate change, such as thawing permafrost and coastal subsidence. More info here: https://land.copernicus.eu/en/products/european-ground-motion-service https://sdi.eea.europa.eu/catalogue/srv/eng/catalog.search#/metadata/943e9cbb-f8ef-4378-966c-63eb761016a9 The EGMS Ortho exploits the information provided by ascending and descending orbits of the EGMS Calibrated to derive two further layers; one of purely vertical displacements (EGMS Ortho Vertical), the other of purely east-west displacements (EGMS Ortho East/West). Both layers are resampled to a 100 m grid, so that the final resolution is 100 by 100 m. This dataset is processed from the Copernicus EGMS vector dataset resulting in a raster mosaic of the mean velocity of the ground in Iceland between 2018 and 2022 in mm/year in the up and down direction and the east west direction. It has been reprojected to EPSG:3057 from EPSG:3035.

The term “geotechnical investigation site” refers to locations where geotechnical (surveys and instrumentation) and geophysical data are available. These data include: - **Geotechnical investigation sites (site_inv_geotech_p) :** Geotechnical surveys produced by or for the Ministry from the 1990s, from the active database of the Directorate of Geotechnics and Geology (DGG). Data is added as and when validated. - **BDG geotechnical investigation sites (site_inv_geotech_bdg_p) :** Geotechnical drilling and drilling from an “inactive” database entrusted to the DGG by the Ministry of Energy and Natural Resources (MERN), since the mid-1980s. These are drilling and survey data compiled by the MERN in the 70s and 80s for “predictive” or “geotechnical soil suitability” mapping campaigns.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**