A new BUFR encoding sequence for all EUMETSAT’s wind products will be introduced in January 2021.
Thursday, 17 September 2020
The new BUFR encoding sequence 03-10-077 is planned to be introduced mid-January 2021, for the Atmospheric Motion Vectors (AMVs) products from both the GEO and LEO services:
Metop AVHRR AMVs:
The WMO endorsed this sequence in November 2018, see the following has detailed information:
To facilitate user transition, AMV products encoded in the new BUFR sequence will be distributed on the GTS in parallel to the currently operational AMV products, as follows:
- Parallel dissemination of Meteosat-11 AMV BUFR products from 15 July to 2 November 2020.
- Parallel dissemination of Meteosat-8 AMV BUFR products from 2 to 16 November 2020.
- Resumption of parallel dissemination of Meteosat-11 AMV BUFR products from 16 November 2020 to mid-January 2021.
- Parallel dissemination of Metop AVHRR AMV BUFR products from 15 July to mid-January 2021.
The same GTS bulletin headers will be used for the parallel dissemination of Meteosat-8 and Meteosat-11 AMVs.
The operational switch to the new BUFR sequence will take place mid-Jan 2021 for both EUMETCast and GTS streams. Exact date will be announced in due course.
A change in the Quality Index (QI) coding sequence in the new AMV BUFR format will be deployed on 17 September 2020.
The new sequence will use the following order:
- QI code 4 = Common QI, excluding the forecast consistency test, implemented according to an internationally agreed algorithm;
- QI code 5 = EUMETSAT nominal QI excluding the forecast consistency test;
- QI code 6 = EUMETSAT nominal QI including the forecast consistency test;
- QI code 2 = EUMETSAT QI excluding the forecast consistency test, based on the AMV pressure derived from the Optimal Cloud Analysis product.
For any questions, contact our User Service Helpdesk.