Overview of ROM SAF activities
Presenter:
Kent B. Lauritsen
Danish Meteorological Institute, Copenhagen, Denmark
Danish Meteorological Institute, Copenhagen, Denmark
Talk
The Radio Occultation Meteorology Satellite Application Facility (ROM SAF) is a decentralized operational processing facility under EUMETSAT. The main objective of the ROM SAF is to generate and deliver operational radio occultation products from GNSS RO instruments onboard Metop, Metop-SG, Jason-CS (Sentinel-6) and from other satellites for NWP and climate applications. A secondary objective is to develop ionosphere products for space weather applications for EUMETSAT’s future EPS-SG mission. A third objective is to deliver the Radio Occultation Processing Package (ROPP) which contains modules for processing and assimilation of RO data in NWP models. Operational products are generated by the GNSS Processing and Archiving Center (GPAC) based on ROPP algorithms.
Recent ROM SAF activities have mainly focused on a reprocessing to generate Climate Data Records (CDRs) from the CHAMP, GRACE, COSMIC and Metop missions. The CDRs include standard geophysical variables (pressure, temperature, specific humidity, and tropopause height) as well as RO-specific variables (bending angle, refractivity). Extended with continuously generated Interim-CDR data records these missions provide 17 years of high-quality RO data from 2001 to 2018. The validation of the CDRs has focused on comparisons against operational ECMWF analyses, ERA-Interim re-analyses, and GRUAN radiosonde data.
We will present an overview of ROM SAF activities with a focus on operational activities and the generation of CDRs. Further information about the ROM SAF products and services are available at the website: http://www.romsaf.org
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