AAFC Annual Unit Runoff in Canada

The “AAFC Annual Unit Runoff in Canada" data series illustrates runoff trends across the country by isolines of annual unit runoff for a variety of probabilities of exceedence commonly used by decision makers Annual unit runoff is a measure of runoff volume per square kilometre. This series uses units of cubic decametres (1000 m3) per square kilometre (dam3/km2), which is equivalent to millimetres depth on the landscape. It includes a point data set for the hydrologic stations that were analyzed and seven sets of line work to show the adjusted isolines for 10%, 25%, 50%, 70%, 75%, 80%, and 90% probability of exceedence.

Data and Resources

Additional Info

Field Value
Last Updated January 20, 2026, 00:32 (UTC)
Created January 16, 2026, 20:35 (UTC)
crisis_categories Inondations
criticality_level Élevé
data_formats ESRI REST; FGDB/GDB; GEOJSON; PDF; WMS
description_fr The “AAFC Annual Unit Runoff in Canada" data series illustrates runoff trends across the country by isolines of annual unit runoff for a variety of probabilities of exceedence commonly used by decision makers Annual unit runoff is a measure of runoff volume per square kilometre. This series uses units of cubic decametres (1000 m3) per square kilometre (dam3/km2), which is equivalent to millimetres depth on the landscape. It includes a point data set for the hydrologic stations that were analyzed and seven sets of line work to show the adjusted isolines for 10%, 25%, 50%, 70%, 75%, 80%, and 90% probability of exceedence.
fair_openness Level 2 - Machine-readable
geographic_scope Canada
opening_level Donnée ouverte au grand public
sector nature_and_environment
sensitivity_level Faible
source_inventaire Inventaire_F
source_url https://www.donneesquebec.ca/recherche/dataset/27686a85-d4e0-42a2-a0e1-461e21b910e3/resource/59b01039-e56d-4df3-9255-6a98ed93ffe7/download/engagement_do2021-12_.csv
title_fr AAFC Annual Unit Runoff in Canada
update_frequency Non planifiée