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Product details

Name	ERICHA Flash flood hazard maps
Acronym
Description	Flash flood indicators / ERICHA - Radar-based precipitation monitoring and nowcasting flash flood indicators – ERICHA - FF hazard maps Sections of the river network highlighted because their flash flood forecast probability over the next 4 hours meets certain criteria. The thresholds are based on regional climatic characteristics and river basin upstream area as published by the MeteoAlarm consortium (“ERICHA - FF hazard levels forecasts” layer) Using the gauge-adjusted precipitation estimates and nowcasts, the flash flood hazard level is estimated by first computing the upstream basin-aggregated rainfall over the drainage network (resolution: 1km) and then comparing the observed values with a set of reference thresholds to determine the flash flood hazard level (yellow - low; orange - medium; red - high). The ERICHA FF hazard level is displayed in a loop with 15-minute time interval. It shows the estimated flash flood hazard level for several hours in the past up to current time and nowcasts up to 6 hours (when the loop bar turns red). This product was developed in the ERICHA project. Output: Map; F-Horiz 6 hours; Forecast Model: NOWCAST (1)
Note
Status	Operational
Group	EWC Hydrological conditions
Area	Europe
Component	Early Warning
Service	Copernicus Emergency Management Service
Entrusted Entities	Joint Research Centre
Created on	Dec. 23, 2020, 11:30 a.m.
Last updated on	Dec. 23, 2020, 11:32 a.m.

UID	Requirement	Level of definition	Relevant for	Criticality	Barriers	Created on	Last updated on
468	Radar Rainfall Information	Firm	Product generation	Essential	Accuracy Update Frequency	Dec. 26, 2020, 9:39 a.m.	Dec. 20, 2021, 1:19 p.m.
211	Physiography	Firm	Product generation	Essential	Accuracy Update Frequency	Dec. 26, 2020, 10:25 a.m.	Feb. 3, 2021, 11:48 a.m.
470	Meteorological Information	Firm	Product generation	Essential	Accuracy Update Frequency	Dec. 26, 2020, 9:26 a.m.	Dec. 20, 2021, 1:24 p.m.
471	Historical meteorology	Firm	Product generation	Essential	Accuracy Update Frequency	Dec. 26, 2020, 4:31 p.m.	Dec. 20, 2021, 1:19 p.m.
210	Built-up Area	Firm	Product generation	Essential	Accuracy Update Frequency	Dec. 26, 2020, 10:16 a.m.	Dec. 26, 2020, 10:16 a.m.
436	Land Cover	Firm	Product generation	Essential	Accuracy Update Frequency	Dec. 26, 2020, 12:46 p.m.	July 26, 2022, 5:23 p.m.
351	Pan-European hydrological models	Firm	Product generation	Essential	Accuracy Update Frequency	Dec. 26, 2020, 12:35 p.m.	Dec. 26, 2020, 12:35 p.m.
476	Hydrological information	Firm	Product generation	Essential	Accuracy Update Frequency	Dec. 26, 2020, 8:58 a.m.	Dec. 20, 2021, 1:17 p.m.