Intense precipitation events can deliver large amounts of rain over short periods of time. This rain can overwhelm storm drains, flood basements, wash out bridges and roads, and trigger landslides. To reduce the risk of these impacts, engineers, hydrologists, planners and other decision makers rely on accurate information about historic extreme rainfall events. IDF data are one important source of this information.
However, IDF information based solely on an analysis of historical data is not suitable for understanding future risks. Furthermore, because our climate is already changing, historical IDF data may not even be well suited for the present day.
We are very happy to announce the launch of new IDF data on ClimateData.ca that represent the influence of projected climate change. The new data have been computed using the temperature-scaling method outlined in this Learning Zone article.
Read more and access the data…