Description

Gridded monthly, seasonal and annual mean temperature anomalies derived from daily minimum, maximum and mean surface air temperatures (degrees Celsius) is available at a 50km resolution across Canada. The Canadian gridded data (CANGRD) are interpolated from homogenized temperature (i.e., AHCCD datasets). Homogenized temperatures incorporate adjustments to the original station data to account for discontinuities from non-climatic factors, such as instrument changes or station relocation. The anomalies are the difference between the temperature for a given year or season and a baseline value (defined as the average over 1961-1990 as the reference period). The yearly and seasonal temperature anomalies were computed for the years 1948 to 2017. The data will continue to be updated every year.

Resources

Name	Format	Description	Link
Climate Data Extraction Tool	HTML		https://climate-change.canada.ca/climate-data/#/historical-gridded-data
Adjusted / homogenized climate data EN	HTML		https://climate-scenarios.canada.ca/index.php?page=homogenized-data
Climate Data Viewer	HTML		https://climate-viewer.canada.ca/climate-maps.html
Data Collection Methodology	PDF		https://data-donnees.az.ec.gc.ca/api/file?path=%2Fclimate%2Fscientificknowledge%2Fcanadian-gridded-climate-data%2Fcanadian-gridded-temperature-anomalies%2FCanadian_Gridded_Data_-_READ_ME_Technical_doc_EN.pdf
Data Collection Methodology	PDF		https://data-donnees.az.ec.gc.ca/api/file?path=%2Fclimate%2Fscientificknowledge%2Fcanadian-gridded-climate-data%2Fcanadian-gridded-temperature-anomalies%2FCanadian_Gridded_Data_-_READ_ME_Technical_doc_FR.pdf
View ECCC Data Mart (English)	HTML		https://data-donnees.az.ec.gc.ca/data/climate/scientificknowledge/canadian-gridded-climate-data/canadian-gridded-temperature-anomalies?lang=en
View ECCC Data Mart (French)	HTML		https://data-donnees.az.ec.gc.ca/data/climate/scientificknowledge/canadian-gridded-climate-data/canadian-gridded-temperature-anomalies?lang=fr
Adjusted / homogenized climate data FR	HTML		https://scenarios-climatiques.canada.ca/index.php?page=homogenized-data
Climate Data Viewer	HTML		https://visualiseur-climatique.canada.ca/cartes-climatiques.html

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