SWOT Level 2 Nadir Altimeter Operational Geophysical Data Record with Waveforms, Version 2.0

Description

The SWOT Level 2 Nadir Altimeter Operational Geophysical Data Record (OGDR) with Waveforms Version 1.0 dataset produced by the Surface Water and Ocean Topography (SWOT) mission provides sea surface height, significant wave height and wind speed measurements from the Poseidon-3C nadir altimeter, a Jason-class dual frequency (Ku/C) altimeter. SWOT is a joint mission between NASA and CNES that launched on December 16, 2022. It aims to measure ocean surface topography with unprecedented resolution and accuracy, as well as map inland water bodies globally. The OGDR dataset consists of discrete measurements along the nadir track with sampling resolutions of approximately 6-km and 300-m at 1Hz and 20Hz, respectively. The data were processed using the onboard DORIS orbit ephemeris, with predicted values for certain auxiliary data and no GIM ionosphere model values. The OGDR data are distributed as one file per data downlink in netCDF-4 file format with a nominal latency of < 7 hours.

Resources

Name Format Description Link
21 SWOT Mission Page at PO.DAAC https://podaac.jpl.nasa.gov/swot
21 Data Use and Citation Policy https://podaac.jpl.nasa.gov/CitingPODAAC
21 HTTPS endpoint for data browse and download https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2296989383-POCLOUD
21 Browse granule search results in Earthdata Search https://search.earthdata.nasa.gov/search/granules?p=C2296989383-POCLOUD
33 Product Description Document (PDD) https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/pdd/SALP-ST-M-EA-17043-CN_0103_20220411_Rev1.3.pdf
21 SWOT Mission Page at JPL https://www.jpl.nasa.gov/missions/surface-water-and-ocean-topography-swot
22 Thumbnail https://podaac.jpl.nasa.gov/Podaac/thumbnails/SWOT_L2_NALT_OGDR_1.0.jpg
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FSWOT-NALT-OGDR-1.0
21 SWOT Mission Page at NASA https://www.nasa.gov/swot
21 Data Subscriber https://github.com/podaac/data-subscriber
21 SWOT Mission Page https://swot.jpl.nasa.gov
21 SWOT Mission Page at AVISO https://www.aviso.altimetry.fr/en/missions/current-missions/swot.html

Tags

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

Topics

Categories