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NRT Notification Detail
| Announcement of upcoming ROM SAF Spire (procured by NOAA) NRT production |
| DATE: 2023-05-25 14:08 TYPE: NRT-GTS |
| Description |
| Dear ROM SAF GTS/EUMETCast User Issued : 2023-05-25 14:01 UTC The ROM SAF is pleased to announce an upcoming production of near real-time (NRT) products based on a subset of radio occultation (RO) measurements from the Spire constellation of nanosatellites. The production is expected to start in the week commencing on 29th May and a follow-up announcement will be sent out with the specific date. These Spire data are procured by NOAA, but made available under a global licence to EUMETSAT. The products contain vertical profiles of atmospheric pressure, temperature, humidity and refractivity. The ROM SAF data generation is based on the Level 1B NRT data (bending angle) provided by the EUMETSAT Secretariat, and will include a copy of the EUMETSAT Secretariat NRT bending angle. The ROM SAF Spire products are provided with the status “demonstration”. The BUFR files for these data contain an extra descriptor for the satellite sub-identifier (descriptor 0 01 016) in BUFR Section 3. This descriptor comes immediately before the RO BUFR sequence of descriptors (descriptor 3 10 026). Master Table Version 39 (or higher) is required to decode the BUFR data. To indicate that these data are procured by NOAA, the sub-centre code in BUFR Section 1 is set to 220. The time significance in the BUFR files (descriptor 0 08 021) is set to 25, meaning ’nominal reporting time’, and consequently the time increment (descriptor 0 04 016) is always zero. The ROM SAF BUFR files will be disseminated on EUMETCast Terrestrial, and this will be announced separately. Kind regards The ROM SAF Team |
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