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 ROM SAF Operations Report 2022 H1
This report covers the 5-month period January May (H1) of 2022. Read more here.
[August 24, 2022]

Release of Obs4MIPs formatted monthly mean gridded data
RO climate data record made available for climate model applications. Read more here.
[July 7, 2022]

New technique for inverting truncated ionospheric RO from GNSS measurement
Release of dataset containing electron density profiles obtained by ionospheric retrieval from truncated RO measurements. Read more here.
[June 23, 2022]

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]

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