SWOT Level 2 KaRIn Low Rate Sea Surface Height Data Product - WindWave, Version 2.0

Description

The SWOT Level 2 KaRIn Low Rate Sea Surface Height Windwave Data Product from the Surface Water Ocean Topography (SWOT) mission provides global sea surface height and significant wave height observations derived from low rate (LR) measurements from the Ka-band Radar Interferometer (KaRIn). 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.
The L2 sea surface height data product is distributed in one netCDF-4 file per pass (half-orbit) covering the full KaRIn swath width, which spans 10-60km on each side of the nadir track. Sea surface height, sea surface height anomaly, wind speed, significant waveheight, and related parameters are provided on a geographically fixed, swath-aligned 2x2 km2 grid (Basic, Expert, Windwave). The sea surface height data are also provided on a finer 250x250 m2 "native" grid with minimal smoothing applied (Unsmoothed).
This collection is a sub-collection of its parent: https://podaac.jpl.nasa.gov/dataset/SWOT_L2_LR_SSH_2.0 It provides the "Windwave" file from each L2 SSH product, which includes significant wave height (SWH), normalized radar cross section (NRCS or backscatter cross section or sigma0), wind speed derived from sigma0 and SWH, model information on wind and waves, and quality flags.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FSWOT-SSH-2.0
21 SWOT Mission Page https://swot.jpl.nasa.gov
21 SWOT Mission Page at NASA https://www.nasa.gov/swot
21 SWOT Mission Page at PO.DAAC https://podaac.jpl.nasa.gov/swot
21 SWOT Mission Page at AVISO https://www.aviso.altimetry.fr/en/missions/current-missions/swot.html
21 Data Subscriber https://github.com/podaac/data-subscriber
21 Data Use and Citation Policy https://podaac.jpl.nasa.gov/CitingPODAAC
21 Search Granules from Forward Processing (PIC0) https://search.earthdata.nasa.gov/search/granules?p=C2799465507-POCLOUD&pg%5B0%5D%5Bid%5D=*PIC0*
21 Search Granules from Bulk Reprocessing (PGC0) https://search.earthdata.nasa.gov/search/granules?p=C2799465507-POCLOUD&pg%5B0%5D%5Bid%5D=*PGC0*
33 Release Note https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/releases/SWOT_VersionC_KaRIn_Products_Release_Note.pdf
21 SWOT Mission Page at JPL https://www.jpl.nasa.gov/missions/surface-water-and-ocean-topography-swot
21 HTTPS endpoint for data browse and download https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2799465507-POCLOUD
33 Algorithm Theoretical Basis Document (ATBD) https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/atbd/D-105502_SWOT_ATBD_L2_LR_SSH_20230724a_cite.pdf
21 Browse granule search results in Earthdata Search https://search.earthdata.nasa.gov/search/granules?p=C2799465507-POCLOUD
22 Thumbnail https://podaac.jpl.nasa.gov/Podaac/thumbnails/SWOT_L2_LR_SSH_2.0.jpg
33 Product Description Document (PDD) https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/pdd/D-56407_SWOT_Product_Description_L2_LR_SSH_20231026_RevBcite.pdf

Tags

  • oceans
  • ocean-waves
  • sea-surface-topography
  • earth-science

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