Water Surface Evaporation over Canada's Landmass

The datasets contain water surface evaporation (PET, in mm of H2O) over Canada's landmass at a spatial resolution of 10-km and temporal intervals of a month and a year over a 24-year period of 2000-2023. The PET was produced by the Land Surface Model EALCO (Ecological Assimilation of Land and Climate Observations) developed at Natural Resources Canada. The PET algorithm in EALCO integrates the dynamic surface evolutions of liquid water, ice, and snow-on-ice for a waterbody into the Penman Equation. The PET was simulated at a daily time step. The monthly (or annual) PET in the datasets is the sum of the daily PET values in a month (or a year). Dew and frost formations simulated by EALCO are included in the PET as negative values, so the PET represents the net water flux between water surface and the atmosphere. Details of the dataset and the EALCO PET modelling algorithms can be found in Li, Wang, and Li (2020, Spatial variations and long‑term trends of potential evaporation in Canada. Scientific Reports, 10: 22089, doi.org/10.1038/s41598-020-78994-9).

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Last Updated October 20, 2025, 02:58 (UTC)
Created October 20, 2025, 02:58 (UTC)
Domain / Topic
Domain or topic of the dataset being cataloged.
Geoscientific Information
Title
Title for the Dataset.
Water Surface Evaporation over Canada's Landmass
Description
A description of the dataset.

The datasets contain water surface evaporation (PET, in mm of H2O) over Canada's landmass at a spatial resolution of 10-km and temporal intervals of a month and a year over a 24-year period of 2000-2023. The PET was produced by the Land Surface Model EALCO (Ecological Assimilation of Land and Climate Observations) developed at Natural Resources Canada. The PET algorithm in EALCO integrates the dynamic surface evolutions of liquid water, ice, and snow-on-ice for a waterbody into the Penman Equation. The PET was simulated at a daily time step. The monthly (or annual) PET in the datasets is the sum of the daily PET values in a month (or a year). Dew and frost formations simulated by EALCO are included in the PET as negative values, so the PET represents the net water flux between water surface and the atmosphere. Details of the dataset and the EALCO PET modelling algorithms can be found in Li, Wang, and Li (2020, Spatial variations and long‑term trends of potential evaporation in Canada. Scientific Reports, 10: 22089, doi.org/10.1038/s41598-020-78994-9).
Tags / Keywords
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Metadata Identifier
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Published Date
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2024-08-01
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Time Period Data Span (end date)
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GeoSpatial Area Data Span
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Field Value
Access category
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License
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Open Government Licence - Canada
Limits on use
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Location
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https://open.canada.ca/data/en/dataset/7a600d2a-ea0f-4dd5-bb4c-71fffe17b9ca
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Owner
Owner of the dataset.
Natural Resources Canada | Ressources naturelles Canada
Contact Point
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Government of Canada; Natural Resources Canada;Canada Centre for Remote Science (CCRS), [email protected]
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Publisher Email
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[email protected]
Author
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Contains Indigenous Data
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None
Source
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None
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Temporal resolution
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GeoSpatial resolution in meters
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GeoSpatial resolution (in regions)
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Field Value
Indigenous Community Permission
Who holds the Indigenous Community Permission. Who to contact regarding access to a dataset that has data about Indigenous communities.
Community Permission
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The Indigenous communities the dataset is about
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