SWOT Level 2 Radiometer Brightness Temperatures and Troposphere Data Product

Description

The SWOT Level 2 Radiometer Brightness Temperatures and Troposphere Geophysical Data Record (GDR) dataset produced by the Surface Water and Ocean Topography (SWOT) mission provides atmospheric water vapor and liquid water content from the Advanced Microwave Radiometer (AMR), a Jason-class radiometer that measures sea surface brightness temperatures at three microwave frequencies (18.7, 23.8 and 34 GHz). Brightness temperatures are processed to estimate the wet troposphere content, atmospheric attenuation to backscatter, cloud liquid water, water vapor content, and wind speed coincident with each range measurement from the nadir altimeter and applied to correct for altimeter range delays caused by atmospheric effects. SWOT is a joint mission between NASA and CNES that launched on December 16, 2022 and aims to measure ocean surface topography with unprecedented resolution and accuracy, as well as map inland water bodies globally. This radiometer dataset consists of discrete measurements along two tracks located approximately 30-km to the left and right of the satellite nadir. The data were processed using the Precise Orbit Ephemeris (POE) and analyzed calibrations. The data are available with latency of < 90 days and distributed in netCDF-4 file format.

Resources

Name Format Description Link
33 Product Description Document (PDD) https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/pdd/D-56417_SWOT_Product_Description_L2_RAD_GDR_20220715_RevB.pdf
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FSWOT-RAD-GDR-2.0
21 SWOT Mission Page https://swot.jpl.nasa.gov
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 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/C2799438350-POCLOUD
21 Browse granule search results in Earthdata Search https://search.earthdata.nasa.gov/search/granules?p=C2799438350-POCLOUD
22 Thumbnail https://podaac.jpl.nasa.gov/Podaac/thumbnails/SWOT_L2_RAD_GDR_2.0.jpg
21 SWOT Mission Page at NASA https://www.nasa.gov/swot
33 Algorithm Theoretical Basis Document (ATBD) https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/atbd/D-105809_SWOT_ATBD_L2_RAD_GDR_20230716_w-sigs.pdf
21 SWOT Mission Page at PO.DAAC https://podaac.jpl.nasa.gov/swot

Tags

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

Topics

Categories