Computerized Tool for the Development of Intensity-Duration-Frequency Curves under Climate Change – Version 4.5

This computerized web-based IDF tool integrates a user interface with a Geographic Information System (GIS). By creating or selecting a station (Gauged IDF) or selecting a location on the map (Ungauged IDF) the user will be able to carry out statistical analysis on historical data, as well as generate and verify possible future change based on a methodology using a combination of climate modeling outputs and locally observed weather data.

By accessing any of the options available in this tool you agree with the Terms of Use

We also encourage you to check out the user manual and technical documentation available in the Help section.

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IDFs for Gauged Locations

IDFs for gauged locations

IDF curves based on observations at stations operated by Environment Canada and created by the user.


IDFs for Ungauged Locations

IDFs for ungauged locations

IDF curves for ungaged locations based on the gridded dataset.


IDF_CC Tool 4.5