Description

The Adjusted Precipitation data consist of monthly, seasonal and annual totals of daily adjusted rain, snow and total precipitation (millimetres) for 464 locations in Canada. Adjusted precipitation data incorporate adjustments (derived from comparison of instruments) to the original station data to account for discontinuities from non-climatic factors, such as instrument changes or station relocation. The time periods of the data vary by location, with the oldest data available from the early 1880s at some stations to the most recent update in 2017. Observations at co-located sites were sometimes joined in order to create longer time series. Data availability over most of the Canadian Arctic is restricted to the mid-1940s to present.

Resources

Name	Format	Description	Link
AHCCD Annual	WFS		https://api.weather.gc.ca/collections/ahccd-annual
AHCCD Annual	WFS		https://api.weather.gc.ca/collections/ahccd-annual?lang=fr
AHCCD Monthly	WFS		https://api.weather.gc.ca/collections/ahccd-monthly
AHCCD Monthly	WFS		https://api.weather.gc.ca/collections/ahccd-monthly?lang=fr
AHCCD Seasonal	WFS		https://api.weather.gc.ca/collections/ahccd-seasonal
AHCCD Seasonal	WFS		https://api.weather.gc.ca/collections/ahccd-seasonal?lang=fr
AHCCD Stations	WFS		https://api.weather.gc.ca/collections/ahccd-stations
AHCCD Stations	WFS		https://api.weather.gc.ca/collections/ahccd-stations?lang=fr
AHCCD Trends	WFS		https://api.weather.gc.ca/collections/ahccd-trends
AHCCD Trends	WFS		https://api.weather.gc.ca/collections/ahccd-trends?lang=fr
Climate Data Extraction Tool	HTML		https://climate-change.canada.ca/climate-data/#/adjusted-station-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
View ECCC Data Mart (English)	HTML		https://data-donnees.ec.gc.ca/data/climate/scientificknowledge/adjusted-and-homogenized-canadian-climate-data-ahccd/adjusted-precipitation-ahccd/
View ECCC Data Mart (French)	HTML		https://data-donnees.ec.gc.ca/data/climate/scientificknowledge/adjusted-and-homogenized-canadian-climate-data-ahccd/adjusted-precipitation-ahccd/?lang=fr
View Data Mart	HTML		https://dd.meteo.gc.ca/climate/ahccd
View Data Mart	HTML		https://dd.weather.gc.ca/climate/ahccd
AHCCD Stations	WMS		https://geo.weather.gc.ca/geomet-climate?lang=fr&service=WMS&version=1.3.0&request=GetCapabilities&layer=AHCCD.STATIONS
AHCCD Stations	WMS		https://geo.weather.gc.ca/geomet-climate?service=WMS&version=1.3.0&request=GetCapabilities&layer=AHCCD.STATIONS
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
Data Collection Methodology	HTML		https://www.canada.ca/en/environment-climate-change/services/climate-change/canadian-centre-climate-services/display-download/technical-documentation-adjusted-climate-data.html
Data Collection Methodology	HTML		https://www.canada.ca/fr/environnement-changement-climatique/services/changements-climatiques/centre-canadien-services-climatiques/afficher-telecharger/documentation-technique-donnees-climatiques-ajustees.html

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