Canadian Homogenized Monthly Precipitation (CanHoPmly)
This first version of the dataset (CanHoPmlyV1) contains homogenized time series of monthly total precipitation for 425 long-term stations in Canada. As detailed in Wang et al. (2023), it is based on the quality-controlled version 2020 of the Adjusted Daily Rainfall and Snowfall (AdjDlyRS) dataset (Wang et al. 2017; available at https://open.canada.ca/data/en/dataset/d8616c52-a812-44ad-8754-7bcc0d8de305), and on daily total precipitation data from automated gauges (including Belfort, Fisher & Porter, Nipher, Geonor, and Pluvio), with some records from neighbouring stations being joined to form long-term data series. Version 1 of ANUSPLIN surfaces of the adjusted monthly precipitation (MacDonald et al. 2021, available at https://open.canada.ca/data/en/dataset/779ea77a-0ad1-42f2-853e-833e1cbb9a13) was used to infill temporal data gaps in the 425 data series. A comprehensive semi-automatic data homogenization procedure was used to homogenize the data series. The aforementioned ANUSPLIN data and the Twentieth Century Reanalysis 20CRv3 ensemble-mean series of monthly precipitation (Slivinski et al., 2021) were used as reference in the homogeneity tests (Wang et al., 2023). The homogenized dataset provides more realistic trend estimates and shows better spatial consistency of trends than does the raw dataset (Wang et al. 2023).
References:
Wang, X.L, Y. Feng, V. Y. S. Cheng, H. Xu, 2023: Observed precipitation trends inferred from Canada’s homogenized monthly precipitation dataset, J. Clim., in press. DOI: 10.1175/JCLI-D-23-0193.1.
Wang, X. L., H. Xu, B. Qian, Y. Feng, E. Mekis, 2017: The adjusted daily rainfall and snowfall data for Canada. Atmosphere-Ocean, 55:3, 155-168, DOI:10.1080/07055900.2017.1342163.
MacDonald, H., D. W. McKenney, X. L. Wang, J. Pedlar, P. Papadopol, K. Lawrence, M. F. Hutchinson, 2021: Spatial Models of adjusted precipitation for Canada at varying time scales. J. Appl. Meteor. And Climatol., 60, 291-304. DOI: 10.1175/JAMC-D-20-0041.1.
Slivinski, L. and coauthors, 2019: Towards a more reliable historical reanalysis: Improvements for version 3 of the Twentieth Century Reanalysis system. Q. J. R. Meteor. Soc., 2876-2908, https://doi.org/10.1002/qj.3598.
Basic view
Metadata Record Information
- File Identifier
- 1dd0c28e-2266-42e2-8985-2f47659e9d02 XML
- Date Stamp
- 2024-06-05T19:13:36.858Z
- Metadata language
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eng; CAN
- Character set
- UTF8
- Hierarchy Level
- Dataset
Data identification
- Title
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Canadian Homogenized Monthly Precipitation (CanHoPmly)
- Date (Publication)
- 2023-10-01
- Date (Creation)
- 2023-10-01
- Status
- On going
- Metadata language
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eng; CAN
- Character set
- utf8
- Topic category
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- Climatology, meteorology, atmosphere
- Maintenance and Update Frequency
- As needed
- Spatial representation type
- Text, table
Keywords
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Government of Canada Core Subject Thesaurus
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Precipitation
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Climate change
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Climate
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Business Functions
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Provide Climate Information Products and Services
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Expand Scientific Knowledge for Climate Monitoring and Prediction
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- Use Limitation
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Open Government Licence - Canada ( http://open.canada.ca/en/open-government-licence-canada)
- Access Constraints
- License
- Use Constraints
- License
- Begin Date
- 1900-01-01
- End Date
- 2019-09-30
Extent
))
Ref. system Reference Systems
- Reference system identifier
- https://epsg.io / EPSG:4269 /
Distribution
Distribution Formats
- Distribution format
-
- TXT ( TXT)
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