Coherent hydrological numerical terrain models at the regional scale

Coherent hydrological numerical terrain models at the regional scale These digital terrain models (DTM) offer a regional numerical representation of Quebec's relief based on altimetric (altitude) and planimetric (rectangular or geographic) data. They are the result of a collaboration between the Ministry of Natural Resources and Forests (MRNF) and Natural Resources Canada (NRCan) within the framework of the Agreement to produce an up-to-date digital map of northern Quebec and the creation of the product “National Hydro Network (RHN)” for the territory of Quebec. When integrated into a geographic information system, these models allow the implementation of multiple types of spatial analyses such as natural risks, landscape analysis, infrastructure implementation, etc. NCDs are obtained as a result of hypsometric and hydrographic data processing that uses the concept of hydro-coherence that uses the concept of hydro-coherence consisting in interpolating altimetric values by ensuring a connected drainage network and an accurate representation of crests and river courses. water. The oriented RHN filament makes it possible to grade lakes and to control the altimeter descent of watercourses. The final product is a quality portrait of relief on a scale of 1/50,000. DNTs provide altitude values that are based on a grid with a resolution of 0.324 arcseconds in geographic coordinates, which corresponds to a resolution of about 10 meters in the field.**This third party metadata element was translated using an automated translation tool (Amazon Translate).** 2024-04-04 Government and Municipalities of Québec geoboutique@mrnf.gouv.qc.ca Form DescriptorsNature and EnvironmentScience and Technology Download index (csv format) per sheet 1/50,000CSV https://diffusion.mern.gouv.qc.ca/Diffusion/RGQ/Matriciel/Elevation/Regional/MNT_HC/GeoTIFF/Tuiles50k/Index50k/Index_MNT_50k.csv Download index (csv format) per sheet 1/250,000CSV https://diffusion.mern.gouv.qc.ca/Diffusion/RGQ/Matriciel/Elevation/Regional/MNT_HC/GeoTIFF/Tuiles250k/Index250k/Index_MNT_250k.csv Directory of NCDs per sheet 1/50,000GeoTIF https://diffusion.mern.gouv.qc.ca/Diffusion/RGQ/Matriciel/Elevation/Regional/MNT_HC/GeoTIFF/Tuiles50k/ Directory of NCDs per sheet 1/250,000GeoTIF https://diffusion.mern.gouv.qc.ca/Diffusion/RGQ/Matriciel/Elevation/Regional/MNT_HC/GeoTIFF/Tuiles250k/ Interactive map of NCDsHTML https://vgo.portailcartographique.gouv.qc.ca/mobile.aspx?gpz_point=-7550430.837470898,%20%207155437.875950893&echelle=17471321&epsg=3857&gpz_nomMap=-%20Mod%C3%A8les%20num%C3%A9riques%20de%20terrain Download card per sheet 1/50,000HTML https://vgo-telechargement.portailcartographique.gouv.qc.ca/mobile.aspx?gpw=4c78e110-bfac-41ad-ae26-415a38b84838 Download card per sheet 1/250,000HTML https://vgo-telechargement.portailcartographique.gouv.qc.ca/mobile.aspx?gpw=226d0aab-98ed-419c-961f-ed64920510ce Original metadata (https://www.donneesquebec.ca)HTML https://www.donneesquebec.ca/recherche/fr/dataset/50ea1add-c7d3-4425-a695-e49618cf7ffe Map index per sheet 1/50,000PDF https://diffusion.mern.gouv.qc.ca/Diffusion/RGQ/Matriciel/Elevation/Regional/MNT_HC/GeoTIFF/Tuiles50k/Index50k/Index_MNT_50k.pdf Map index per sheet 1/250,000PDF https://diffusion.mern.gouv.qc.ca/Diffusion/RGQ/Matriciel/Elevation/Regional/MNT_HC/GeoTIFF/Tuiles250k/Index250k/Index_MNT_250k.pdf Download index (SHP format) per sheet 1/50,000SHP https://diffusion.mern.gouv.qc.ca/Diffusion/RGQ/Matriciel/Elevation/Regional/MNT_HC/GeoTIFF/Tuiles50k/Index50k/Index_MNT_50k.zip Download index (SHP format) per sheet 1/250,000SHP https://diffusion.mern.gouv.qc.ca/Diffusion/RGQ/Matriciel/Elevation/Regional/MNT_HC/GeoTIFF/Tuiles250k/Index250k/Index_MNT_250k.zip MNT WMS serviceWMS https://servicesmatriciels.mern.gouv.qc.ca/erdas-iws/ogc/wms/Elevation?SERVICE=WMS&REQUEST=GetCapabilities&layers=Regional_MNT-HC_MNT-HC-REGIONAL&legend_format=image/png&feature_info_type=text/plain MNT WMS serviceWMS https://servicesmatriciels.mern.gouv.qc.ca/erdas-iws/ogc/wms/Elevation?SERVICE=WMS&REQUEST=GetCapabilities&layers=Regional_MNT-HC_MNT-HC-REGIONAL&legend_format=image/png&feature_info_type=text/plain WMTS MNT serviceWMTS https://servicesmatriciels.mern.gouv.qc.ca/erdas-iws/ogc/wmts/Elevation?SERVICE=WMTS&REQUEST=GetCapabilities

These digital terrain models (DTM) offer a regional numerical representation of Quebec's relief based on altimetric (altitude) and planimetric (rectangular or geographic) data. They are the result of a collaboration between the Ministry of Natural Resources and Forests (MRNF) and Natural Resources Canada (NRCan) within the framework of the Agreement to produce an up-to-date digital map of northern Quebec and the creation of the product “National Hydro Network (RHN)” for the territory of Quebec. When integrated into a geographic information system, these models allow the implementation of multiple types of spatial analyses such as natural risks, landscape analysis, infrastructure implementation, etc. NCDs are obtained as a result of hypsometric and hydrographic data processing that uses the concept of hydro-coherence that uses the concept of hydro-coherence consisting in interpolating altimetric values by ensuring a connected drainage network and an accurate representation of crests and river courses. water. The oriented RHN filament makes it possible to grade lakes and to control the altimeter descent of watercourses. The final product is a quality portrait of relief on a scale of 1/50,000. DNTs provide altitude values that are based on a grid with a resolution of 0.324 arcseconds in geographic coordinates, which corresponds to a resolution of about 10 meters in the field.This third party metadata element was translated using an automated translation tool (Amazon Translate).

Made available by the Government and Municipalities of Québec

These resources are not under the control of the Government of Canada and the link is provided solely for the convenience of our website visitors. We are not responsible for the accuracy, currency or reliability of the content of this website. The Government of Canada does not offer any guarantee in that regard and is not responsible for the information found through this link.

Visitors should also be aware that information offered by this non-Government of Canada site is not subject to the Privacy Act or the Official Languages Act and may not be accessible to persons with disabilities. The information offered may be available only in the language used by the site. With respect to privacy, visitors should research the privacy policies of this non-government website before providing personal information.

Data and Resources

Contact Information

Electronic Mail Address: geoboutique@mrnf.gouv.qc.ca

Similar records