The Radio Occultation Meteorology SAF is a decentralized facility under EUMETSAT, that runs an operational radio occultation system responsible for delivering bending angle, refractivity, temperature, pressure, and humidity profiles in near-real time and offline for NWP and climate users. The offline profiles are further processed into climate products consisting of gridded monthly means of bending angle, refractivity, temperature, humidity, and geopotential heights.

The ROM SAF also maintains the ROPP (Radio Occultation Processing Package) software package for users wishing to process, quality-control, and assimilate radio occultation data from any radio occultation mission into NWP and other models.

The ROM SAF Leading Entity is the Danish Meteorological Institute (DMI), with Cooperating Entities ECMWF (European Centre for Medium-Range Weather Forecasts) in Reading, United Kingdom, IEEC (Institut D'Estudis Espacials de Catalunya) in Barcelona, Spain, and Met Office in Exeter, United Kingdom. Until February 29, 2012, the official name of the ROM SAF was GRAS SAF. Read more about the ROM SAF here.

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

NRT Monitoring of RO Data
Monitoring of quality and data flow (Metop/GRAS, COSMIC, GRACE-A, TerraSAR-X, SAC-C, C/NOFS)
ECMWF statistics (Metop/GRAS, COSMIC, GRACE-A, TerraSAR-X, SAC-C, C/NOFS)


Characterisation of radiosonde temperature biases and errors using radio occultation measurements
Read more here.
[December 3, 2015]

Release of updated climate data record based on the COSMIC satellites
Read more here.
[March 16, 2015]

Release of ROM SAF ROPP-8.0 software package
The changes from the previous release, v7.0, are: an improved vertical interpolation scheme in the refractivity and bending angle forward models ... Read more here.
[February 24, 2015]

Improved Helpdesk
In order to add more interaction in the Helpdesk between the user and the ROM SAF team, the Helpdesk has been improved with several new features. Read more here.
[November 12, 2014]

Upgrade of Metop-A and Metop-B NRT production
We are pleased to announce the improvement of QC procedure for level2a products and the dissemination of NRT temperature, specific humidity, pressure and surface pressure products from the Metop-A and B satellites. Read more here.
[July 22, 2014]

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Our visiting scientist program allows scientists from institutions that are not SAF members to participate in the activities of the SAF.

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