Canadian Gridded Climate Dataset - NRCanMET

Summary Description

The ANUSPLIN Canadian Gridded Climate Dataset (NRCanMET) is a high-resolution, station-based gridded climate dataset produced by Natural Resources Canada (NRCan) and Agriculture and Agri-Food Canada. It provides daily and monthly interpolated climate variables across Canada, utilizing the Australian National University Spline (ANUSPLIN) model. The dataset provides information coninuous in time and space for climate research and environmental studies.

ToDo: Add PCIC Blend info, recent references

ERA5-Land Example

Percent difference in mean annual precipitation for NRCANmet minus PNWNAmet (from1)

Dataset Characteristics

  • Current version: TBD - Use Ouranos naming convention?
  • Temporal coverage: 1950–2015
  • Temporal resolution: Daily and monthly
  • Spatial coverage: Canadian landmass
  • Spatial resolution: ~10 km grid spacing (0.1°)
  • Data type: Quality-controlled station observations interpolated using ANUSPLIN
  • Web references: [ToDo*].{mark-red}
  • Reference publications: See references below

Strengths and Limitations

Key Strengths of NRCanMET

Strength Description
High Spatial Resolution Provides detailed climate information at ~10 km resolution across Canada.
Long-Term Coverage Spans over six decades, enabling comprehensive climate trend analyses.
Quality-Controlled Data Utilizes quality-controlled station observations for interpolation.
Consistent Methodology Employs the ANUSPLIN model, ensuring consistency in data interpolation.
Accessibility Available through platforms like ClimateData.ca and the Pacific Climate Impacts Consortium.

Key Limitations of NRCanMET

Limitation Description
Temporal Gaps Station density varies over time, potentially affecting data consistency in certain regions.
Interpolation Limitations Accuracy depends on the density and distribution of input stations.
Lack of Real-Time Updates Dataset extends only up to 2015, limiting its use for recent climate analyses.
Limited Variables Focuses primarily on temperature and precipitation; other climate variables are not included.

Expert Guidance

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Example Applications

links to Electricity Sector Applications

Variables available in NRCanMET

For details click on variable group to uncollapse

  • Daily maximum temperature (°C)
  • Daily minimum temperature (°C)
  • Monthly maximum temperature (°C)
  • Monthly minimum temperature (°C)
  • Daily total precipitation (mm)

Data Access

References

1.
2.
Hutchinson, M. F. et al. Development and testing of canada-wide interpolated spatial models of daily minimum–maximum temperature and precipitation for 1961–2003. Journal of Applied Meteorology and Climatology 48, 725–741 (2009).
3.
McKenney, D. W. et al. Customized spatial climate models for north america. Bulletin of the American Meteorological Society 92, 1611–1622 (2011).