GNSS radio occultation L1B excess phase and amplitude for CHAMP as contributed by EUMETSAT, version 2.0 (gnssro_champ_eumetsat_l1b)

This dataset provides Global Navigation Satellite System (GNSS) Radio Occultation (RO) Excess Phase and Amplitude data from the Challenging Mini-satellite Payload (CHAMP) mission as contributed by the European Organisation for the Exploitation of Meteorological Satellites. Each granule represents a single occultation.

GNSS RO is a remote sensing technique that measures the refracted radio signals generated by GNSS satellites and viewed through Earth’s limb. Parameters describing the refraction can be used to infer familiar atmospheric variables such as temperature, pressure and water vapor. The RO technique allows for increased global coverage of temperature and water vapor through the large number of daily observations and as a result plays an important role in the enhancement of Numerical Weather Prediction and other atmospheric-related studies.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated August 25, 2026, 10:01 (UTC)
Created June 3, 2026, 00:33 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 5b93f4ec-02f5-4310-8072-ec3ba20a19fd
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/DYDPG4CQN6CF
license https://www.usa.gov/government-works
modified 2026-08-17T22:16:02Z
programCode {026:000}
publisher NASA/GSFC/SED/ESD/TISL/GESDISC
resource-type Dataset
source_datajson_identifier true
source_hash eaf4eea15833e7a2817b8de08939d36c15ef836f36e12ef778fc26d71e6b79cf
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -180, "NorthBoundingCoordinate": 90, "EastBoundingCoordinate": 180, "SouthBoundingCoordinate": -90}]]
temporal 2001-05-19/2008-10-05
theme {"Earth Science"}