The Radio Occultation Meteorology Satellite Application Facility (ROM SAF) is a decentralised processing centre under EUMETSAT which is responsible for operational processing of radio occultation (RO) data from the Metop, Sentinel-6 and Metop-SG satellites and radio occultation data from other missions. The ROM SAF delivers geophysical variables in near real-time for NWP users, as well as offline RO data and reprocessed Climate Data Records (CDRs) and Interim Climate Data Records (ICDRs) for users requiring a higher degree of homogeneity of the RO data sets. The CDRs and ICDRs are further processed into globally gridded monthly-mean data for use in climate monitoring and climate science applications. The ROM SAF also maintains the Radio Occultation Processing Package (ROPP) which contains software modules that aid users wishing to process, quality-control and assimilate radio occultation data from any radio occultation mission into NWP and other models.

ROM SAF Product Archive
For access to the data products, please use the Product Archive

NRT Monitoring of RO Data
ROM SAF monitoring and data flow
ECMWF ROM SAF monitoring statistics


NEWS

Publication of Visiting Scientist report on ionospheric 1D-Var retrieval assessment
The visiting scientist study has tested the new ionospheric 1D-Var electron density retrieval method. Read more here.
[March 18, 2022]

Release of ROM SAF atmospheric gridded products from Sentinel-6 observations
These ROM SAF products include geophysical gridded variables generated from Sentinel-6 Michael Freilich radio occultation observations. Read more here.
[March 14, 2022]

Publication of ROM SAF Operations Report 2021 H2
This report covers the 7-month period June December (H2) of 2021. Read more here.
[February 11, 2022]

Monitoring global climate change using GNSS radio occultation
Predictions made 15 years ago with the Hadley Center climate model is confirmed with radio occultation data. Read more here.
[February 3, 2022]

Release of software package ROPP version 11
The ROM SAF announces the release of ROPP-11.0, the latest update of the Radio Occultation Processing Package (ROPP). Read more here.
[January 26, 2022]

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