Arctic SDI catalogue
Adjusted and Homogenized Canadian Climate Data (AHCCD)
This web site provides adjusted and homogenized climate data for many climatological stations in Canada. These data were created for use in climate research including climate change studies. They incorporate a number of adjustments applied to the original station data to address shifts due to changes in instruments and in observing procedures. Sometimes the observations from several stations were joined to generate a long time series.
Users are strongly cautioned to determine the data suitability for their application. They should also be aware that ongoing research on adjustment techniques may result in future revisions of the datasets. The datasets are updated annually with the most recent data.
The adjusted and homogenized data are provided for four climate elements: Surface air temperature, Precipitation, Surface pressure, and Surface wind speed.
References
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., M. M. Hartwell, and X. L. Wang, 2020: A third generation of homogenized temperature for trend analysis and monitoring changes in Canada’s climate. Atmosphere-Ocean., 58:3, 173-191, doi:10.1080/07055900.2020.1765728.
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.
Simple
- Date ( RI_367 )
- 2000-01-01
- Date ( RI_366 )
- 2000-01-01
- Status
- completed; complété RI_593
- Maintenance and update frequency
- asNeeded; auBesoin RI_540
- Keywords ( RI_528 )
-
- surface air temperature, precipitation, surface pressure, surface wind speed
- ECCC Information Category EN ECCC Information Category FR ( Theme )
-
- Weather and Climate
- Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( Theme )
-
- Climate
- Climate change
- Business Functions Fonctions de l'entreprise ( Theme )
-
- Provide Climate Information Products and Services
- Expand Scientific Knowledge for Climate Monitoring and Prediction
- Geography Portée Géographique ( Place )
-
- National (CA)
- external.theme.EC_Branch local.theme.external.theme.EC_Branch ( RI_528 )
-
- Science and Technology Branch
- external.theme.EC_Directorate local.theme.external.theme.EC_Directorate ( RI_528 )
-
- Atmospheric Science and Technology
- external.theme.GC_Security_Level local.theme.external.theme.GC_Security_Level ( RI_528 )
-
- Unclassified
- Use limitation
- Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
- Access constraints
- license; licence RI_606
- Use constraints
- license; licence RI_606
- Spatial representation type
- textTable; texteTable RI_637
- Metadata language
- eng; CAN
- Character set
- utf8; utf8 RI_458
- Topic category
-
- Climatology, meteorology, atmosphere
- Begin date
- 1900-01-01
- End date
- 2012-12-31
))
- Reference system identifier
- / EPSG:4326 /
- Distribution format
-
-
TXT
(
2
)
-
TXT
(
2
)
Distributor
http://ec.gc.ca
- Fees
- None
- OnLine resource
-
Adjusted and Homogenized Canadian Climate Data (AHCCD) EN
(
HTTPS
)
Dataset;HTML;eng
- OnLine resource
-
AHCCD Monthly
(
HTTPS
)
Web Service;WFS;fra
- OnLine resource
-
AHCCD Trends
(
HTTPS
)
Web Service;WFS;fra
- OnLine resource
-
AHCCD Seasonal
(
HTTPS
)
Web Service;WFS;fra
- OnLine resource
-
AHCCD Stations
(
HTTPS
)
Web Service;WFS;fra
- OnLine resource
-
AHCCD Annual
(
HTTPS
)
Web Service;WFS;fra
- OnLine resource
-
Adjusted and Homogenized Canadian Climate Data (AHCCD) FR
(
HTTPS
)
Dataset;HTML;fra
- OnLine resource
-
View Data Mart
(
HTTPS
)
Dataset;HTML;eng,fra
- OnLine resource
-
Climate Data Viewer
(
HTTPS
)
Application;HTML;eng
- OnLine resource
-
Climate Data Viewer
(
HTTPS
)
Application;HTML;fra
- OnLine resource
-
AHCCD Stations
(
HTTPS
)
Web Service;WMS;eng
- OnLine resource
-
AHCCD Stations
(
HTTPS
)
Web Service;WMS;fra
- OnLine resource
-
AHCCD Stations
(
HTTPS
)
Web Service;WFS;eng
- OnLine resource
-
AHCCD Annual
(
HTTPS
)
Web Service;WFS;eng
- OnLine resource
-
AHCCD Seasonal
(
HTTPS
)
Web Service;WFS;eng
- OnLine resource
-
AHCCD Trends
(
HTTPS
)
Web Service;WFS;eng
- OnLine resource
-
AHCCD Monthly
(
HTTPS
)
Web Service;WFS;eng
- OnLine resource
-
Climate Data Extraction Tool
(
HTTPS
)
Application;HTML;eng,fra
- OnLine resource
-
View ECCC Data Mart (English)
(
HTTPS
)
Web Service;HTML;eng
- OnLine resource
-
View ECCC Data Mart (French)
(
HTTPS
)
Web Service;HTML;fra
- OnLine resource
-
Data Collection Methodology
(
HTTPS
)
Supporting Document;HTML;eng
- OnLine resource
-
Data Collection Methodology
(
HTTPS
)
Supporting Document;HTML;fra
- File identifier
- 9c4ebc00-3ea4-4fe0-8bf2-66cfe1cddd1d XML
- Metadata language
- eng; CAN
- Character set
- utf8; utf8 RI_458
- Hierarchy level
- series; série RI_623
- Date stamp
- 2023-04-11T18:38:51
- Metadata standard name
- North American Profile of ISO 19115:2003 - Geographic information - Metadata
- Metadata standard version
- Enviroment Canada - Version 1
http://ec.gc.ca
Overviews
Spatial extent
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