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This is a description of EFAS v4.1. For an overview of other EFAS releases, please see: EFAS versioning system

Summary

EFAS v4.1 is a change in the EFAS Flash Flood (ERIC) layer and general bug fixes.

Here is a a summary of the main changes:

New criteria for plotting ERIC reporting points. They are now:
- Catchments of less than 2000km2 (same threshold as before)
- 30% of the ensemble forecast a flood magnitude threshold greater or equal to the 5yr return period threshold (it was 10% only for EFAS v4.0)
Bugfix to the method to calculate the lead time in the ERIC reporting points
Generate a spatial index file (.qix) with the ERIC reporting points to speed up the visualisation of the layer on EFAS-IS

Release date	2021-02-15 12UTC
In test suite	2021-02-12 12 UTC
EFAS internal release	019
Archiving of data	ECFS, MARS, CDS
Climatology	1991-01-01 - to near real-time
Horizontal projection	ETRS89 Lambert Azimuthal Equal Area Coordinate Reference System (ETRS-LAEA)
Horizontal resolution	5 x 5 km
Temporal resolution	6-hourly for medium range-monthly products, 24-hourly for seasonal