Data and Products of the Regional Air Quality Deterministic Prediction System
The Regional Air Quality Deterministic Prediction System (RAQDPS) takes into account physical and chemical processes to produce deterministic forecasts of the concentration of chemical species of interest to air quality. These chemical constituents include gases such as O3, SO2, NO, and NO2, in addition to fine particles PM2.5 (diameter of 2.5 micrometers or less) and coarse particles PM10 (diameter of 10 micrometers or less). The PM2.5 and PM10 now include the contribution of wildfire emissions as well as anthropogenic and biogenic emission sources. The forecasts are available for the present up to 72 hours in the future twice a day (run 00 UTC and 12 UTC). The geographic domain of the RAQDPS covers most of North America with a horizontal resolution of 10km.
Access
How to access the data
This data is available from the MSC GeoMet API / web services and the MSC Datamart data server:
- Data available via the GeoMet-Weather geospatial web services
- GRIB2 data available on the MSC Datamart
An overview and examples to access and use the Meteorological Service of Canada's open data is available. Example of a web map configured to display the RAQDPS.SFC_NO2 layer served by MSC GeoMet:
Licence
The end-user licence for Environment and Climate Change Canada's data servers specifies the conditions of use of this data.
MSC Open Data Service Usage Policy
The MSC Open Data Service Usage Policy determines what constitutes an acceptable use of MSC Open Data services and provides users best practices for optimal use.
Metadata
Upcoming.
Products
- Hourly forecast maps over 72-hours, and 24-hour forecast maps for average and maximum over 72-hours, for total PM2.5 concentrations near the surface within wildfire smoke plume.
- Hourly forecast maps over 72-hours for tropospheric ozone (O₃), nitrogen dioxide (NO₂), and total PM2.5 concentrations near the surface.
Technical documentation
- Actual version of the Regional Air Quality Deterministic Prediction System
- Technical note
- Diagram of dependencies
- Factsheet associated with the latest innovation cycle
Changelog
The chronology of changes to operational systems is available in the changelog.