Canada's surface water frequency

Canada's surface water frequency Data represents surface water occurrence frequency (percentage), which describes the frequency for each grid appeared as water in the 30 years time period of 1991 to 2020. The data covers Canada’s entire landmass including all transboundary watersheds, and is at 30-meter spatial resolution. The surface water occurrence frequency is derived using the surface water model of Wang et al. (2023) from all-available monthly water data observed by the Landsat satellites (Pekel et al., 2016). Here, permanent waters are represented by 100%, and permanent land surfaces by 0%, of water occurrence for a 30-meter by 30-meter grid. References: Pekel, J.-F., A. Cottam, N. Gorelick, A.S. Belward, 2016, High-resolution mapping of global surface water and its long-term changes. Nature, 540, 418-422. Wang, S., J. Li, and H. A. J. Russell, 2023, Methods for Estimating Surface Water Storage Changes and Their Evaluations. Journal of Hydrometeorology, DOI: https://doi.org/10.1175/JHM-D-22-0098.1. 2023-05-19 Natural Resources Canada shusen.wang@nrcan-rncan.gc.ca Form Descriptorsgeoscientific informationWaterRemote sensingSurface waterInland watersLakesHydrologyClimateDatabases STAC APIHTML https://datacube.services.geo.ca/api/collections/surface-water-frequency Surface Water Frequency Maps of Canada from 1991-2020WMS https://datacube.services.geo.ca/web/surface-water-frequency.xml?request=Getcapabilities&service=WMS&version=1.3.0&layers=frequency&legend_format=image%2Fpng&feature_info_type=text%2Fxml Surface Water Frequency Maps of Canada from 1991-2020WMS https://datacube.services.geo.ca/web/surface-water-frequency.xml?request=Getcapabilities&service=WMS&version=1.3.0&layers=frequency&legend_format=image%2Fpng&feature_info_type=text%2Fxml Surface Water Frequency Maps of Canada from 1991-2020TIFF https://datacube-prod-data-public.s3.ca-central-1.amazonaws.com/store/water/surface-water-frequency/canada-water-frequency-1991-2020-percentage.tif Surface Water Frequency Maps of Canada from 1991-2020WCS https://datacube.services.geo.ca/ows/surface-water-frequency?service=WCS&request=GetCapabilities

Data represents surface water occurrence frequency (percentage), which describes the frequency for each grid appeared as water in the 30 years time period of 1991 to 2020. The data covers Canada’s entire landmass including all transboundary watersheds, and is at 30-meter spatial resolution. The surface water occurrence frequency is derived using the surface water model of Wang et al. (2023) from all-available monthly water data observed by the Landsat satellites (Pekel et al., 2016). Here, permanent waters are represented by 100%, and permanent land surfaces by 0%, of water occurrence for a 30-meter by 30-meter grid.

References:

Pekel, J.-F., A. Cottam, N. Gorelick, A.S. Belward, 2016, High-resolution mapping of global surface water and its long-term changes. Nature, 540, 418-422.

Wang, S., J. Li, and H. A. J. Russell, 2023, Methods for Estimating Surface Water Storage Changes and Their Evaluations. Journal of Hydrometeorology, DOI: https://doi.org/10.1175/JHM-D-22-0098.1.

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Delivery Point: 580 Booth Street

City: Ottawa

Administrative Area: Ontario

Electronic Mail Address: shusen.wang@nrcan-rncan.gc.ca

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