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| Start date | End date (short events) | Event type | Affected data | Description |
|---|---|---|---|---|
| 01/01/2020 | 01/01/2020 | Technical outage | Most of the data | A piece of code designed to cope with 2K year bug caused rejection of most of the data for 06 BC, 00 LWDA and 12 DA cycles. An emergency fix was implemented to fix the problem. |
| 01/01/2020 | 14/01/2020 | Technical outage | Small subset of Ocean in-situ data reporting in TAC: XBTs and CTDs | Due to a technical problem a small subset of Ocean in-situ data reporting in TAC (XBTs and CTDs) were rejected. This affected the NRT ocean5 data assimilation. The problem has been fixed and the missing data were re-processed. The delayed ocean5 data assimilation will not be affected. |
| 03/01/2020 | 14/01/2020 | Outage | FY-3B/MWHS | CMA requested EUMETSAT to stop the distribution of the data due to a switch over of the scan mode. At the time of the outage the data quality was nominal |
| 08/01/2020 | Blacklist update | In-situ data | Monthly update of in-situ data blacklist. In addition to the usual blacklist/whitelist of individual stations this update contains other significant changes: Activation of BUFR Radiosonde and PILOTs from CHINA. Activation BUFR SHIP BUOYS and deactivatation TAC counterparts. Update: The blacklist was postponed for one day to fix a small technical issue causing a small reduction of Automatic SYNOPs in few areas. Problem fixed on 09/01/2020 | |
| 09/01/2020 | Activation | Aeolus winds | After months of successful testing and improvement of the bias correction winds from Aeolus are activated. For more info please check https://www.ecmwf.int/en/about/media-centre/news/2020/ecmwf-starts-assimilating-aeolus-wind-data | |
| 13/01/2020 | Blacklist | Meteosat-11 AMV and ASR | Temporary blacklist during Meteosat-11 SEVIRI decontamination | |
| 23/01/2020 | New data monitoring | PAZ GPSRO | Monitoring of GPSRO from the Spanish satellite PAZ (https://www.wmo-sat.info/oscar/satelliteprogrammes/view/123) | |
| 30/01/2020 | Re-activation | Meteosat-11 AMVs and ASR | The data are activated further to a successful decontamination of SEVIRI. The data quality are unaffected. | |
| 31/01/2020 | 13/02/2020 | Data outage | Jason-3 (Surface wind, wave height and sea-level anomaly) | Satellite in safe mode |
| 04/02/2020 | 12/02/2020 | Data outage | FY-3C data (MWHS2 and GNOS) | FY-3C data suspended due to satellite platform maintenance |
| 10/02/2020 | Blacklist update | In-situ data | Monthly update of in-situ data blacklist. | |
| 11/02/2020 | Re-activation | Metop-A/IASI | Re-activation of Metop-A/IASI | |
| 11/02/2020 | 26/02/2020 | Outage | TERRASAR-X and Tandem-X GPSRO | Data absent in ECMWF system but available in other sites (ROM-SAF). Outage being investigated. Problem is caused by a change in the data encoding. Decoder updated |
| 13/02/2020 | temporary blacklist | FY-3C MWHS2 | Data came back (after days of outage) with unexplained changes of bias. The data is blacklisted temporarily. | |
| 16/02/2020 | Data outage | Metop-C/IASI | Data unavailable due to instrument decontamination | |
| 27/02/2020 | technical change | Metop-A/MHS | Due to the failure of channel 2 data is used only over ocean when passing a test based on channel 1 | |
| 27/02/2020 | Blacklist | GOES-15 CSR | Data from GOES-15 are blacklisted prior to the switch of of the satellite | |
| 04/03/2020 | New data | Metop-C/GOME-2 Ozone | Started monitoring Metop-C/GOME-2 Ozone | |
| 09/03/2020 | Blacklist update | In-situ data | Monthly update of in-situ data blacklist. | |
| 23/03/2020 | New data monitoring | COSMIC-2 GPSRO | Monitoring of COSMIC-2 GPSRO | |
| 25/03/2020 | Activation | COSMIC-2 GPSRO | COSMIC-2 GPSRO used in operations | |
| 01/04/2020 | 02/04/2020 | Technical issue | Sea level anomaly (SLA) | change from the data provider affected the pre-processing of SLA data used by the ocean5 data assimilation |
| 02/04/2020 | Re-activation | FY-3C MWHS2 | Re-activation of FY-3C MWHS2 after confirmation from the data provider that no further spacecraft maintenance are expected. The change of bias has been stable. No impact noticed on random errors |
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