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imageryBaseMapsEarthCover

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    This layer represents Land use polygons as determined by a combination of analytic techniques, mostly using Landsat 5 image mosaics . BTM 1 was done on a federal satellite image base that was only accurate to about 250m. The images were geo-corrected, not ortho-corrected, so there is distortion in areas of high relief. This is not a multipart feature

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    Fraction of absorbed photosynthetically active radiation (fAPAR) quantified the absorbed by green foliage. fAPAR has been identified by the Global Climate Observing System as an essential climate variable required for ecosystem, weather and climate modelling and monitoring. This product consists of a national scale coverage (Canada) of monthly maps of fAPAR during a growing season (May-June-July-August-September) at 20m resolution. References: L. Brown, R. Fernandes, N. Djamai, C. Meier, N. Gobron, H. Morris, C. Canisius, G. Bai, C. Lerebourg, C. Lanconelli, M. Clerici, J. Dash. Validation of baseline and modified Sentinel-2 Level 2 Prototype Processor leaf area index retrievals over the United States IISPRS J. Photogramm. Remote Sens., 175 (2021), pp. 71-87, https://doi.org/10.1016/j.isprsjprs.2021.02.020. https://www.sciencedirect.com/science/article/pii/S0924271621000617 Richard Fernandes, Luke Brown, Francis Canisius, Jadu Dash, Liming He, Gang Hong, Lucy Huang, Nhu Quynh Le, Camryn MacDougall, Courtney Meier, Patrick Osei Darko, Hemit Shah, Lynsay Spafford, Lixin Sun, 2023. Validation of Simplified Level 2 Prototype Processor Sentinel-2 fraction of canopy cover, fraction of absorbed photosynthetically active radiation and leaf area index products over North American forests, Remote Sensing of Environment, Volume 293, https://doi.org/10.1016/j.rse.2023.113600. https://www.sciencedirect.com/science/article/pii/S0034425723001517

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    Each pixel value corresponds to the quality control, cloud cover and snow fraction value for each pixel in the Best-Quality Max-NDVI product.

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    IBL - Imagery, basemaps, and land cover (imageryBaseMapsEarthCover) Basemaps. For example, resources describing land cover, topographic maps, and classified and unclassified images

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    The Saskatchewan Digital Land Cover was created to be used in the interim. The National Land Cover Project plans to integrate land cover information compiled by Natural Resources Canada, Canadian Forest Service, and Agriculture and Agri-Food Canada. The Saskatchewan Digital Land Cover raster provides a seamless provincial coverage of the province and was created by combining the Saskatchewan Research Council's Northern Digital Land Cover (NDLC) with the Southern Digital Land Cover (SDLC).  With exception to the SDLC's value 2 (i.e. Hay Crops) and value 3 (i.e. Native Dominant Grass Lands), the NDLC takes precedence over the SDLC in areas that the two rasters overlap because the NDLC is more current than the dated SDLC. The SDLC's values 2 and 3 were preserved because these land covers are not specifically represented in the NDLC. For the purpose of this dataset, some of the SDLC and NDLC values were reclassified to new values to reconcile varying definitions.  It should also be noted that because the NDLC's 30 x 30 metre pixels do not align with the SDLC's 30 x 30 metre pixels, this raster was snapped to the NDLC. Last, as is with the SDLC and the NDLC, the extent of this raster does not extend all of the way to the Saskatchewan boundary, specifically, the Information Services Corporation's SaskGIS Provincial Boundary dataset, in numerous areas along the west, south and southeast borders: There are gaps of up to 500 m wide of "no data" between the provincial boundary and the raster along these areas of the Saskatchewan boundary. Classification Value AGRICULTURE 1 HAY CROPS 2 NATIVE DOMINANT GRASSLANDS 3 TALL SHRUBS 4 PASTURE 5 HARDWOODS (OPEN CANOPY) 6 HARDWOODS (CLOSED CANOPY) 7 JACKPINE (CLOSED CANOPY) 8 JACKPINE (OPEN CANOPY) 9 SPRUCE (CLOSED CANOPY) 10 SPRUCE (OPEN CANOPY) 11 MIXED WOODS 12 TREED ROCK 13 RECENT BURNS 14 REVEGETATING/REGENERATION BURN 15 CUTOVERS 16 WATER 17 MARSH 18 HERBACEOUS FEN 19 MUD/SAND/SALINE 20 SHRUB FEN (TREED SWAMP) 21 TREED BOG 22 OPEN BOG 23 FARMSTEAD 24 UNCLASSIFIED 25 BARREN LAND 26 MIXED SOFTWOODS (OPEN & CLOSED) 27 PASTURE UPLAND HERBACEOUS GRAMINOID 30 1. AGRICULTURE - Cropland, including all lands dedicated to the production of annual cereal, oil seed, and other specialty crops, and typically cultivated on an annual basis; and agricultural clearing areas.  2. HAY CROPS (Forage) - Alfalfa and alfalfa/tame grass mixtures.  3. NATIVE DOMINANT GRASSLANDS - Native dominant grasslands. (May contain tame grasses and herbs.)  4. TALL SHRUBS - Communities containing both low and tall shrub, snowberry, saskatoon, chokecherry, buffaloberry, and willow.  5. PASTURE (Seeded Grass Lands) - Grassland dominated by tame grass species.  6. HARDWOODS (I.E. OPEN CANOPY) - Greater than 75% hardwoods by area, including trembling aspen, white birch, balsam poplar; 10 - 55% crown closure.  7. HARDWOODS (I.E. CLOSED CANOPY) - Greater than 75% hardwoods by area, including trembling aspen, white birch, balsam poplar; Greater than 55% crown closure.  8. JACKPINE (I.E. CLOSED CANOPY) - Greater than 75% of Jack Pine by area; Greater than 55% crown closure.  9. JACKPINE (I.E. OPEN CANOPY) - Greater than 75% of Jack Pine by area; 10 - 55% crown closure.  10. SPRUCE (I.E. CLOSED CANOPY) - Greater than 75% or greater Black and White Spruce; Greater than 55% crown closure.  11. SPRUCE (I.E. OPEN CANOPY) - Greater than 75% Black and White Spruce; 10-55% crown closure.  12. MIXED WOODS - All softwood/hardwood mixtures; open and closed canopy (i.e. An area of hardwood and softwood combinations in which neither hardwood nor softwood account for greater than 75% of species by area, and where the crown closure is greater than 10%).  13. TREED ROCK - Areas of exposed bedrock with generally less then 10% tree cover.  14. RECENT BURNS - An area showing evidence of recent burning natural or prescribed and there is little to no regeneration or revegetation visible.  15. REVEGETATING/REGENERATION BURN - An area showing evidence of natural or prescribed burning and where regeneration or revegetation is visible.  16. CUTOVERS - An area of deforestation, vegetated and non-vegetated.  17. WATER - These areas include lakes, rivers, streams and reservoirs  18. MARSH - A periodically wet or continually flooded but non peat-forming area supporting grasses, sedges, and reeds.  19. HERBACEOUS FEN - A wetland area consisting of decomposing peat supporting vascular and nonvascular plants (i.e. grasses, sedges, reeds).  20. MUD/SAND/SALINE - Water saturated soil, sand containing no vegetation, and salt water.  21. SHRUB FEN (I.E. TREED SWAMP) - A wetland area consisting of decomposing peat supporting low shrubs, forbs, grass, moss, and a sparse tree cover.  22. TREED BOG - A wetland area consisting of decomposing peat moss, lichen, and shrubs, with 10% or more canopy by trees (i.e. primarily black spruce and tamarack).  23. OPEN BOG - A wetland area consisting of decomposing peat moss, lichen, and sparse tree cover.  24. FARMSTEAD - Farmsteads, towns, cities, exposed areas with little or no vegetation.  25. UNCLASSIFIED  26. BARREN LAND - Any area of exposed rock, soil, or non-vegetated land.  27. MIXED SOFTWOODS (OPEN & CLOSED) - Jack Pine/Spruce, Spruce/Jack Pine Open and Closed, an area of softwood combinations in which neither Jack Pine or Spruce account for greater than 75% of species by area, and where crown closure is greater than 10%.  30. PASTURE UPLAND HERBACEOUS GRAMINOID - Lands containing known pastures, tame or native grasses, and herbaceous vegetation. These lands may contain low-lying shrubs with less then 10% tree cover.

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    The dataset includes two data products derived from the Visible Infrared Imaging Radiometer Suite (VIIRS) imager operated by the US National Oceanic and Atmospheric Administration (NOAA) onboard Suomi National Polar-Orbiting Partnership (SNPP) satellite: 1) Normalized Difference Vegetation Index (NDVI) 2) Snow Mask (Snow) with supplementary information about data quality and scene identification Each product, NDVI and Snow, has been derived at two spatial resolutions: 1) I-band resolution for 250-m spatial grid (VIIRS image bands I1 and I2) 2) M-band resolution for 500-m spatial grid (VIIRS moderate resolution bands M5 and M7) Datasets are produced with a daily temporal frequency, i.e. one file per day. The study area with the size of 5,700 km × 4,800 km covers Canada and neighboring regions (Trishchenko, 2019). The VIIRS time series are produced from VIIRS /SNPP imagery at CCRS from January 1, 2017.

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    The 2010 AAFC Land Use is a culmination and curated metaanalysis of several high-quality spatial datasets produced between 1990 and 2021 using a variety of methods by teams of researchers as techniques and capabilities have evolved. The information from the input datasets was consolidated and embedded within each 30m x 30m pixel to create consolidated pixel histories, resulting in thousands of unique combinations of evidence ready for careful consideration. Informed by many sources of high-quality evidence and visual observation of imagery in Google Earth, we apply an incremental strategy to develop a coherent best current understanding of what has happened in each pixel through the time series.

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    Index Grid for NTS 1:250,000 scale maps

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    Temporal analysis of changes in the Iqaluit region, Nunavut, based on GeoAI features automatically extracted from satellite images acquired in 2012 and 2022. Simple geospatial analysis intersecting GeoAI multidate building features enables the detection of buildings observed in 2022 that were not detected in 2012. The addition of new buildings is a good indicator of urban development and/or sprawl. GeoAI enables temporal coverage of various areas in Canada, thus providing a useful tool for change detection and trend analysis at high resolution. While the series is still fairly new, and such examples are limited for the time being, NRCan strives to gradually increase its GeoAI data offering for both spatial and temporal coverage. For more information about the GeoAI - GeoBase Series, please visit the following link: https://open.canada.ca/data/en/dataset/74738ff5-5367-5958-9aee-98fffdcd1876

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    The Grassland Inventory provides a standardized, high-resolution land cover classification for the grassland ecosystems in Canada. Developed using a random forest classification on multi-temporal Sentinel-1 SAR and Sentinel-2 Optical imagery, the series differentiates intact native grasslands from high-disturbance, tame perennial forage systems; two classes that are spectrally and phenologically similar, yet critical to differentiate and quantify accurately for carbon and biodiversity modelling. Each release in the series includes a categorical 10 m land cover raster and a companion continuous likelihood layer representing model confidence in the native grassland class. As new classifications are added (semi-decadal) and geographic extent increased, the series will enable consistent temporal comparisons to track grassland dynamics and land cover change to support operational and research applications within AAFC and stakeholders.