GNSS radio occultation L2A bending angle, refractivity, and dry pressure for GRACE as contributed by ROMSAF, version 2.0 (gnssro_grace_romsaf_l2a)

This dataset provides Global Navigation Satellite System (GNSS) Radio Occultation (RO) Bending Angle, Refractivity, and Dry Pressure data from the GRACE (Gravity Recovery and Climate Experiment) mission as contributed by the Radio Occultation Meteorology Satellite Application Facilities. 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, 10:02 (UTC)
Created June 3, 2026, 00:34 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
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harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/O8K58JU4A0SW
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
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source_hash a5f729d89b5d58aa6caf9d0eb26bec88087f88c72fa3672ab92fc1897173a30c
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -180, "NorthBoundingCoordinate": 90, "EastBoundingCoordinate": 180, "SouthBoundingCoordinate": -90}]]
temporal 2007-03-01/2016-12-31
theme {"Earth Science"}