ABoVE: Wetland Inundation Coverage at Yukon Flats, AK and PA Delta, Canada, 2017-2019

Description

This dataset provides time series of wetland inundation coverage maps and corresponding inundation frequency maps at ~10-meter resolution estimated every 12 days during the free-water period (May to October) for the years 2017-2019 over the Yukon Flats (YK) portion of the Yukon River, Alaska, USA, and the Peace-Athabasca Delta (PAD), Alberta, Canada. Wetland inundation coverage was determined by a two-step modified decision-tree classification approach that first used Sentinel-1 C-band SAR to identify likely inundated areas across a study site and was followed by a decision-tree classification step with C-band SAR backscatter statistics thresholds to distinguish among different inundation components. The result of this process was five classes for each inundation map, namely Open Water (OW), Floating Plants (FP), Emergent Plants (EP), Flooded Vegetation (FV), and Dry Land (DRY). After all the individual (every 12 days) inundation coverage maps were derived for a study site, they were generalized to two-class maps which maintained only inundation status. These generalized maps were then stacked and summarized to produce the inundation frequency map for the site. In these maps, higher values signify more frequently inundated areas, with the maximum value representing permanently inundated pixels. The Sentinel-1 inundation mapping capability demonstrated here provided frequent, broad-scale mapping of different wetland inundation components. Integration of such products with process-based methane (CH4) models would improve simulation of CH4 emissions from wetlands.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1901
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/above/InundationMap_YkFlats_PeaceAth/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/ABOVE/guides/InundationMap_YkFlats_PeaceAth.html
34 2017-2019 inundation frequency of the Peace-Athabasca Delta, Canada. From Huang et al., 2021. https://daac.ornl.gov/ABOVE/guides/InundationMap_YkFlats_PeaceAth_Fig1.png
33 ABoVE: Wetland Inundation Coverage at Yukon Flats, AK and PA Delta, Canada, 2017-2019: InundationMap_YkFlats_PeaceAth.pdf https://data.ornldaac.earthdata.nasa.gov/public/above/InundationMap_YkFlats_PeaceAth/comp/InundationMap_YkFlats_PeaceAth.pdf
25 ABoVE: Wetland Inundation Coverage at Yukon Flats, AK and PA Delta, Canada, 2017-2019: Yukon_footprint.kmz https://data.ornldaac.earthdata.nasa.gov/public/above/InundationMap_YkFlats_PeaceAth/comp/Yukon_footprint.kmz
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1901
25 ABoVE: Wetland Inundation Coverage at Yukon Flats, AK and PA Delta, Canada, 2017-2019: PAD_footprint.kmz https://data.ornldaac.earthdata.nasa.gov/public/above/InundationMap_YkFlats_PeaceAth/comp/PAD_footprint.kmz
21 ABoVE project site https://above.nasa.gov

Tags

  • ecosystems
  • biosphere
  • surface-water
  • terrestrial-hydrosphere
  • earth-science

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