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ABoVE: AirSWOT Water Masks from Color-Infrared Imagery over Alaska and Canada, 2017

Overview

DOIhttps://doi.org/10.3334/ORNLDAAC/1707
Version1
Project
Published2020-02-21
Updated2020-03-02
Usage40 downloads

Description

This dataset provides 1) a conservative open water mask for future water surface elevation (WSE) extraction from the co-registered AirSWOT Ka-band interferometry data, and 2) high-resolution (1 m) water body distribution maps for water bodies greater than 40 m2 along the NASA Arctic-Boreal Vulnerability Experiment (ABoVE) foundational flight lines. The masks and maps were derived from georeferenced three-band orthomosaics generated from individual images collected during the flights and a semi-automated water classification algorithm based on the Normalized Difference Water Index (NDWI). In total, 3,167 km2 of open water were mapped from 23,380 km2 of flight lines spanning 23 degrees of latitude. Detected water body sizes range from 40 m2 to 15 km2. The image tiles were georeferenced using manually selected ground control points (GCPs). Comparison with manually digitized open water boundaries yields an overall open-water classification accuracy of 98.0%.

Science Keywords

  • SPECTRAL/ENGINEERING
  • VISIBLE WAVELENGTHS
  • VISIBLE IMAGERY
  • BIOSPHERE
  • ECOSYSTEMS
  • FRESHWATER ECOSYSTEMS
  • RIVERS/STREAM
  • SPECTRAL/ENGINEERING
  • INFRARED WAVELENGTHS
  • INFRARED IMAGERY
  • BIOSPHERE
  • ECOSYSTEMS
  • FRESHWATER ECOSYSTEMS
  • LAKE/POND
  • TERRESTRIAL HYDROSPHERE
  • SURFACE WATER
  • SURFACE WATER FEATURES

Data Use and Citation

This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use Policy.

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Crosscite Citation Formatter
Kyzivat, E.D., L.C. Smith, L.H. Pitcher, J.V. Fayne, S.W. Cooley, M.G. Cooper, S. Topp, T. Langhorst, M.E. Harlan, C.J. Gleason, and T.M. Pavelsky. 2019. ABoVE: AirSWOT Water Masks from Color-Infrared Imagery over Alaska and Canada, 2017. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1707

See our Data Use and Citation Policy for more information.

Data Files

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Companion Files

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Dataset has 1 companion files.

  • ABoVE_AirSWOT_Water_Mask.pdf