The Copernicus Emergency Management Service (CEMS) Meteorological Data Collection Centre (METEO) collects, quality-controls and post-processes in situ and ground-based remote sensed meteorological data to provide input data tailored to the needs of the CEMS EFAS (European Flood Awareness System), EFFIS (European Forest Fire Information System) and EDO (European Drought Observatory).

In 2021, the CEMS Meteorological Data Collection Centre welcomed the contributions of 6 new data providers: Agenzia Regionale Di Protezione Civile (Lazio, Italy), Hungarian Meteorological Service, Hydrological Information Centre (HIC) - Flanders Hydraulics Research (Belgium), Israel Meteorological Service (IMS), Republic Hydrometeorological Service of the Republic of Srpska (Bosnia and Herzegovina), Servei Meteorològic de Catalunya (Spain).

By the end of 2021, real-time data delivered by 30 providers for 11 parameters from more than 23,000 real time stations are collected. On average, 7,000,000 records are being added to the database each day. Additionally, the database comprises more than 44,000 stations with historical data.

This report contains an analysis of the meteorological data received by the CEMS Meteorological Data Collection Centre (METEO) for the year 2021 in terms of:

• data providers and provision,
• database,
• post-processing,
• gap analysis.

The EFAS team, and particularly METEO, would like to thank the EFAS Partners and Data Providers that contributed to the CEMS meteorological data collection. We would like to acknowledge their dedication to the EFAS project, their commitment and the sharing of their meteorological data. We thank them for their cooperation with METEO, both in the provision of data and for their proactive role in responding to the questions and solving issues. Without their collaboration, the delivery of this service would not be possible.