The following is a description of the pre-operational release of EFAS v5.2, which will be made available from 04 July 2024 in a test phase. EFAS v5.2 is expected to be launched operationally in August 2024. For an overview of other EFAS releases, please see: the EFAS versioning system.
To test the pre-operational EFAS v5.2 version, you must access the EFAS Stage Platform: https://stage.efas.eu/en
Please submit any feedback you have on EFAS v5.2 updates using the EFAS feedback form: https://european-flood.emergency.copernicus.eu/en/form/feedback
Summary
EFAS v5.2 introduces several minor changes to the system, including:
- Revised Notification criteria for Formal and Informal notifications:
- Optimised criteria for the issue of Formal and Informal notifications are based on a new methodology for the computation of the total probability of exceedance of the 5 yr RP threshold of the grand ensemble encompassing all Numerical Weather Predictions.
- Improved definition of the area of validity of Formal and Informal notifications.
- Revised layers in the EFAS Map Viewer:
- (a) 5-year exceedence < 48 h and 5-year exceedence > 48 h replaced the layers Flood Probability < 48 h and Flood Probability > 48 h, respectively;
- (b) Flood probability layer replaced the former Flood probability persistence layer;
- (c) Reporting Points pop-up window has been updated to show total probability and grand ensemble.
- Improved EFAS notifications email to include a link to a preview feature in the Notifications Archive Dimitar Tasev
- Optimised criteria for the issue of Formal and Informal notifications are based on a new methodology for the computation of the total probability of exceedance of the 5 yr RP threshold of the grand ensemble encompassing all Numerical Weather Predictions.
- Reporting points alert levels are now based on the new total probability definition. In the points popup window, new total probability tables and combined hydrograph are shown.
- Stations metadata have been updated to better align them with the hydrological data collected by EHDCC. Cinzia Mazzetti
- Updated flood protection levels layer using new information in EU member states
- Updated Major Rivers layer derived from 4 different datasets: FAO AQUASTAT, EU hydro, Natural Earth, and GRDC; improved visualization of river network and river names.
- Updated documentation on FTP Access
This upgrade of EFAS has no impact on the EFAS modelling results.
Technical details
Pre-release date (available on stage platform) | 2024-07-03 |
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Release date | 2024-08-13 (tbd) |
In test suite | n/a |
EFAS internal number | 20 |
Archiving of data | ECFS, MARS, CDS |
Reference climatology (for thresholds/ anomalies) | 1992-01-01 to 2022-12-31 |
EFAS Historical | 1992-01-01 to near present |
Reforecasts | |
Horizontal projection | EPSG4326 |
Horizontal resolution | 0.01667 x 0.01667° |
Temporal resolution | 6-hourly |