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SWOT Level 2 Water Mask Raster Image 250m Data Product, Version 2.0

Published by NASA/JPL/PODAAC | National Aeronautics and Space Administration | Catalog Last Checked: April 20, 2026 at 04:14 PM | Dataset Last Updated: March 31, 2025
The SWOT Level 2 Water Mask Raster Image 250m Data Product from the Surface Water Ocean Topography (SWOT) mission provides global surface water elevation and inundation extent derived from high rate (HR) measurements from the Ka-band Radar Interferometer (KaRIn) on SWOT. SWOT launched on December 16, 2022 from Vandenberg Air Force Base in California into a 1-day repeat orbit for the "calibration" or "fast-sampling" phase of the mission, which completed in early July 2023. After the calibration phase, SWOT entered a 21-day repeat orbit in August 2023 to start the "science" phase of the mission, which is expected to continue through 2025.\r\n Water surface elevation, area, water fraction, backscatter, geophysical information are provided in geographically fixed scenes at 250 meter horizontal resolution in Universal Transverse Mercator (UTM) projection. Available in netCDF-4 file format. On-demand processing available to users for different resolutions, sampling grids, scene sizes, and file formats.\r\n This collection is a sub-collection of its parent: https://podaac.jpl.nasa.gov/dataset/SWOT_L2_HR_Raster_2.0

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Complete Metadata
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description The SWOT Level 2 Water Mask Raster Image 250m Data Product from the Surface Water Ocean Topography (SWOT) mission provides global surface water elevation and inundation extent derived from high rate (HR) measurements from the Ka-band Radar Interferometer (KaRIn) on SWOT. SWOT launched on December 16, 2022 from Vandenberg Air Force Base in California into a 1-day repeat orbit for the "calibration" or "fast-sampling" phase of the mission, which completed in early July 2023. After the calibration phase, SWOT entered a 21-day repeat orbit in August 2023 to start the "science" phase of the mission, which is expected to continue through 2025.\r\n<br> Water surface elevation, area, water fraction, backscatter, geophysical information are provided in geographically fixed scenes at 250 meter horizontal resolution in Universal Transverse Mercator (UTM) projection. Available in netCDF-4 file format. On-demand processing available to users for different resolutions, sampling grids, scene sizes, and file formats.\r\n<br> <br>This collection is a sub-collection of its parent: https://podaac.jpl.nasa.gov/dataset/SWOT_L2_HR_Raster_2.0
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identifier C2799438288-POCLOUD
issued 2022-06-28
keyword 
                                            [
  "earth-science",
  "surface-water",
  "terrestrial-hydrosphere"
]
landingPage https://doi.org/10.5067/SWOT-RASTER-2.0
language 
                                            [
  "en-US"
]
modified 2025-03-31
programCode 
                                            [
  "026:001"
]
publisher 
                                            {
  "name": "NASA/JPL/PODAAC",
  "@type": "org:Organization"
}
spatial -180.0 -90.0 180.0 90.0
temporal 2022-12-16T00:00:00Z/2024-03-27T00:00:00Z
theme 
                                            [
  "SWOT",
  "geospatial"
]
title SWOT Level 2 Water Mask Raster Image 250m Data Product, Version 2.0

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