Date modified: 2024-08-13
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Flood Map and Dataset Gallery
Explore the flood map and dataset gallery to view flood hazard data, and other datasets that deepen our understanding of flooding.
Interactive Flood Maps
Explore ready-to-use maps to deepen your understanding of flooding.
Historical Flood Events
Explore an archive of locations where some of the largest floods have taken place in recent Canadian history.
Floods in Canada - Current Year
Explore floods for the current year as monitored by Natural Resources Canada.
Flood Susceptibility Index
Find out how likely flooding is to occur in different parts of Canada.
Datasets
Explore geospatial datasets related to water and flooding on Geo.ca.
High Resolution Digital Elevation Model (HRDEM)
The High Resolution Digital Elevation Model (HRDEM) includes a Digital Terrain Model (DTM), a Digital Surface Model (DSM) and other derived data. South of the productive forest line, DTM and DSM datasets are generated from airborne lidar data. In the north, they are derived from satellite images.
High Resolution Digital Elevation Model Mosaic (HRDEM Mosiac)
The High Resolution Digital Elevation Model Mosaic provides a unique and continuous representation of the high resolution elevation data available across the country. The High Resolution Digital Elevation Model (HRDEM) product used is derived from airborne lidar data (mainly in the south) and satellite images in the north. The mosaic is available for both the Digital Terrain Model (DTM) and the Digital Surface Model (DSM) from web mapping services.
Automatically Extracted Buildings
Automatically Extracted Buildings is a raw digital product in vector format. It consists of a single topographical feature class that delineates polygonal building footprints automatically extracted from airborne Lidar data, high-resolution optical imagery or other sources.
Lidar Point Clouds Product
This product contains point clouds from various airborne lidar acquisition projects conducted in Canada. These airborne lidar acquisition projects may have been conducted by NRCan or by various partners. The point cloud files are distributed using the compressed .LAZ / Cloud Optimized Point Cloud (COPC) format.
Canadian Hydrospatial Network (CHN)
The Canadian Hydrospatial Network (CHN) is an analysis-ready geospatial network of features that help enable the modelling of surface water flow in Canada. The six main layers and feature types are: flowlines, waterbodies, catchments, catchment aggregates, work units, and hydro nodes.
National Hydro Network
The National Hydro Network (NHN) focuses on providing a quality geometric description and a set of basic attributes describing Canada's inland surface waters. It provides geospatial digital data compliant with the NHN Standard such as lakes, reservoirs, watercourses (rivers and streams), canals, islands, drainage linear network, toponyms or geographical names, constructions and obstacles related to surface waters, etc.
Related Sites
Learn About Flood Mapping
Flood maps show an area that may be covered by water, or show where the water reaches during a specific flood event. They are critical tools that can help us identify potential risks and mitigate flood impacts.
Federal Flood Mapping Resources (Natural Resources Canada)
The Government of Canada is investing to help Canadians better plan and prepare for future floods. Learn how the Government of Canada contributes to the production of flood maps.
