Description

Monthly, seasonal and annual trends of mean hourly sea level and station pressure change (hectopascals) based on homogenized station data (AHCCD) are available. Trends are calculated using the Theil-Sen method using the station’s full period of available data. The availability of surface pressure trends will vary by station; if more than 5 consecutive years are missing data or more than 10% of the data within the time series is missing, a trend was not calculated.

Resources

Name	Format	Description	Link
AHCCD Monthly	WFS		https://api.weather.gc.ca/collections/ahccd-monthly?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/trends-of-surface-pressure-change-based-on-adjusted-and-homogenized-climate-station-data/
View ECCC Data Mart (French)	HTML		https://data-donnees.ec.gc.ca/data/climate/scientificknowledge/trends-of-surface-pressure-change-based-on-adjusted-and-homogenized-climate-station-data//?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 Annual	WFS		https://geo.weather.gc.ca/geomet-beta/features/collections/ahccd-annual
AHCCD Seasonal	WFS		https://geo.weather.gc.ca/geomet-beta/features/collections/ahccd-seasonal
AHCCD Stations	WFS		https://geo.weather.gc.ca/geomet-beta/features/collections/ahccd-stations
AHCCD Trends	WFS		https://geo.weather.gc.ca/geomet-beta/features/collections/ahccd-trends
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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