The following is a description of the latest operational release of EFAS v4.5. For an overview of other EFAS releases, please see: EFAS versioning system

Summary

EFAS v4.5 introduces minor changes to the system, as well as some general bug fixes. Here is a summary of the main changes: 

• Post-processing updates: 

• • Increase temporal resolution of bias-adjusted method (real-time hydrograph) from 24 hours to 6 hours.
  • Recalibration of all 1606 station models using the most up-to-date data available (1419 at 6-hourly, 187 at daily).
  • River discharge observations are now obtained from a new hydrological database set up by EFAS Hydrological Data Collection Centre (HYDRO)
  • Detailed documentation on the post-processing method and post-processing product (Real-time hydrograph) can be found on the dedicated wiki pages, following the release.

• Introduction of TAMIR layers:

  • Four new hourly updated flash flood products developed during the TAMIR project are now available:

    • Flash flood impact forecasts summarised at the catchment level for four lead time aggregation windows: 0-6h, 07-24h, 25 - 48h, and 49 - 120h

    • An animated layer showing flash flood impact forecasts over the river network at each timestep for lead times from 0-120h

    • Accumulated precipitation estimates for the past 24h (updated twice per day)

    • An animated layer of the 80th percentile of ensemble rainfall forecasted at each timestep for lead times from 0-120h

  • Detailed documentation on the TAMIR layers can be found on the dedicated TAMIR wiki pages, following the release. 

• Introduction of new Global Flood Monitoring (GFM) layer on EFAS-IS. 
  • A new widget is planned for GFM products on the top right side of the toolbar on the EFAS-IS map viewer. 
    • - the first icon is for the GFM widget
  • As part of the GFM integration, the following layers have been added to the EFAS-IS map viewer:
    • Advisory Flags, Affected Landcover, Affected Population, Exclusion Mask, Likelihood Values, Observed Flood Extent, Observed Water Extent, Reference Water Mask, Sentinel 1 Footprint, Sentinel 1 Schedule
  • Detailed documentation on the Global Flood Monitoring widget and layers can be found on the dedicated wiki page: EFAS Global Flood Monitoring Products Overview following the release. 

Technical details