SWOT Level 2 Radiometer Brightness Temperatures and Troposphere Operational Data Product, Version 2.0

The SWOT Level 2 Radiometer Brightness Temperatures and Troposphere Operational Geophysical Data Record (OGDR) Version 1.0 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. The operational radiometer dataset consists of discrete measurements along two tracks located approximately 30-km to the left and right of the satellite nadir. They were processed using the onboard DORIS orbit ephemeris and preliminary calibrations. They are distributed as one file per data downlink in netCDF-4 file format with a nominal latency of < 7 hours.

Data e Risorse

Campo Valore
accessLevel public
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier C2799438353-POCLOUD
issued 2022-06-28
landingPage https://doi.org/10.5067/SWOT-RAD-OGDR-1.0
language {en-US}
metadata_type geospatial
modified 2025-03-31
old-spatial -180.0 -77.6 180.0 77.6
programCode {026:001}
publisher NASA/JPL/PODAAC
resource-type Dataset
source_datajson_identifier true
source_hash b7c3092430d820e94516a34efc66b73407769de62e1d8ce05b8eac3a20488e38
source_schema_version 1.1
temporal 2022-12-16T00:00:00Z/2023-11-27T00:00:00Z
theme {SWOT,geospatial}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • atmosphere
  • atmospheric-water-vapor
  • atmospheric-winds
  • clouds
  • cryosphere
  • earth-science
  • geological-features
  • microwave
  • oceans
  • radar
  • sea-ice
  • spectral-engineering
isopen False
license_id notspecified
license_title License not specified
maintainer undefined
maintainer_email cmr-support@earthdata.nasa.gov
metadata_created 2025-09-24T00:07:06.796124
metadata_modified 2025-09-24T00:07:06.796132
notes The SWOT Level 2 Radiometer Brightness Temperatures and Troposphere Operational Geophysical Data Record (OGDR) Version 1.0 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. The operational radiometer dataset consists of discrete measurements along two tracks located approximately 30-km to the left and right of the satellite nadir. They were processed using the onboard DORIS orbit ephemeris and preliminary calibrations. They are distributed as one file per data downlink in netCDF-4 file format with a nominal latency of < 7 hours.
num_resources 12
num_tags 20
title SWOT Level 2 Radiometer Brightness Temperatures and Troposphere Operational Data Product, Version 2.0