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

Description

The SWOT Level 2 KaRIn Low Rate Sea Surface Height 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 dataset is the parent collection to the following sub-collections:
https://podaac.jpl.nasa.gov/dataset/SWOT_L2_LR_SSH_Basic_2.0
https://podaac.jpl.nasa.gov/dataset/SWOT_L2_LR_SSH_WindWave_2.0
https://podaac.jpl.nasa.gov/dataset/SWOT_L2_LR_SSH_Expert_2.0
https://podaac.jpl.nasa.gov/dataset/SWOT_L2_LR_SSH_Unsmoothed_2.0

Resources

Name Format Description Link
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 HTTPS endpoint for data browse and download https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2799438306-POCLOUD
21 Browse granule search results in Earthdata Search https://search.earthdata.nasa.gov/search/granules?p=C2799438306-POCLOUD
22 Thumbnail https://podaac.jpl.nasa.gov/Podaac/thumbnails/SWOT_L2_LR_SSH_2.0.jpg
21 Search Granules from Forward Processing (PIC0) https://search.earthdata.nasa.gov/search/granules?p=C2799438306-POCLOUD&pg%5B0%5D%5Bid%5D=*PIC0*
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 https://swot.jpl.nasa.gov
21 SWOT Mission Page at JPL https://www.jpl.nasa.gov/missions/surface-water-and-ocean-topography-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 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FSWOT-SSH-2.0
21 Data Use and Citation Policy https://podaac.jpl.nasa.gov/CitingPODAAC
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
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 Search Granules from Bulk Reprocessing (PGC0) https://search.earthdata.nasa.gov/search/granules?p=C2799438306-POCLOUD&pg%5B0%5D%5Bid%5D=*PGC0*

Tags

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

Topics

Categories