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 also provides a service which monitors the quality of RO data from available missions by using NWP models:

Release of software package ROPP version 11.3
The ROM SAF announces the release of ROPP-11.3, the latest update of the Radio Occultation Processing Package (ROPP). Read more here.
[July 11, 2024]

Updates to ROM SAF Metop NRT processing and products (GPAC 3.4)
ROM SAF system upgrade from GPAC 0.4 to 3.4 and changes to netCDF files. Read more here.
[March 8, 2024]

Publication of ROM SAF Operations Report 2023 H2
This report covers the 7-months’ period June–December (H2) of 2023. Read more here.
[February 27, 2024]

8th ROM SAF User Workshop on GNSS radio occultation measurements
The 8th ROM SAF User Workshop will take place at ECMWF, Reading, UK, on 11-13 June 2024. Read more here.
[February 6, 2024]

Ionospheric 1D-Var papers
The papers introduce a novel approach for retrieving electron density profile information from GNSS-RO measurements using the one-dimensional variational retrieval (1D-Var) technique. Read more here.
[February 1, 2024]

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