Adjusted and Homogenized Canadian Climate Data (AHCCD)
The data consist of monthly, seasonal and annual means of homogenized daily maximum, minimum and mean surface air temperatures for more than 330 locations in Canada; monthly, seasonal and annual totals of adjusted daily rainfall, snowfall and total precipitation for more than 460 locations; homogenized monthly, seasonal and annual means of hourly surface wind speed at more than 110 locations; monthly, seasonal and annual means of hourly station and sea level pressure adjusted for more than 630 locations. The data are given for the entire period of observation. Please refer to the papers below for detailed information regarding the procedures for homogenization and adjustment.
Mekis, É. and L.A. Vincent, 2011: An overview of the second generation adjusted daily precipitation dataset for trend analysis in Canada. Atmosphere-Ocean, 49(2), 163-177.
Vincent, L. A., X. L. Wang, E. J. Milewska, H. Wan, F. Yang, and V. Swail, 2012. A second generation of homogenized Canadian monthly surface air temperature for climate trend analysis, J. Geophys. Res., 117, D18110, doi:10.1029/2012JD017859.
Wan, H., X. L. Wang, V. R. Swail, 2010: Homogenization and trend analysis of Canadian near-surface wind speeds. Journal of Climate, 23, 1209-1225.
Wan, H., X. L. Wang, V. R. Swail, 2007: A quality assurance system for Canadian hourly pressure data. J. Appl. Meteor. Climatol., 46, 1804-1817.
Wang, X.L, Y. Feng, L. A. Vincent, 2013. Observed changes in one-in-20 year extremes of Canadian surface air temperatures. Atmosphere-Ocean. Doi:10.1080/07055900.2013.818526.
- Publisher - Current Organization Name: Environment and Climate Change Canada
- Licence: Open Government Licence - Canada
Data and Resources
Adjusted and Homogenized Canadian Climate Data (AHCCD) ENHTMLEnglish dataset HTML
Adjusted and Homogenized Canadian Climate Data (AHCCD) FRHTMLFrench dataset HTML
View Data MartHTMLEnglish dataset HTML
View Data MartHTMLFrench dataset HTML
Climate Data ViewerHTMLEnglish application HTML
Climate Data ViewerHTMLFrench application HTML
AHCCD StationsWMSEnglish web_service WMS
AHCCD StationsWMSFrench web_service WMS
AHCCD StationsWFSEnglish French web_service WFS
AHCCD AnnualWFSEnglish French web_service WFS
AHCCD SeasonalWFSEnglish French web_service WFS
AHCCD TrendsWFSEnglish French web_service WFS
AHCCD MonthlyWFSEnglish French web_service WFS
Climate Data Extraction ToolHTMLEnglish French application HTML
View ECCC Data Mart (English)HTMLEnglish web_service HTML
View ECCC Data Mart (French)HTMLFrench web_service HTML
Data Collection MethodologyPDFEnglish guide PDF
Data Collection MethodologyPDFFrench guide PDF
|Adjusted and Homogenized Canadian Climate Data (AHCCD)|
Electronic Mail Address: Lucie.Vincent@ec.gc.ca