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RODEO



/ External Projects / RODEO










What was RODEO about?



In 2019, the European Commission issued a revised Open Data Directive (1024/2019/EU) to harmonise and enhance the re-use and accessibility of public sector data across Europe. The Implementing Regulation of the directive defines High-Value Datasets (HVD) (Commission Implementing Regulation (EU) 2023/138) and the technical requirements for each data category. One of them concerns meteorological data.

The RODEO project aim was to strengthen the capacity of European meteorological data providers to comply with the HVD Implementing Regulation by developing and operationalising a shared federated infrastructure for free and open access to meteorological HVDs.











Who was funding this project, who was in charge, and who were the Partners?



The RODEO project was launched in 2023 and was successfully concluded at the end of 2025. It was co-funded by the European Union’s Digital Europe Programme and EUMETNET members. 
The RODEO project partners consisted of EUMETNET, the European Centre for Medium-Range Weather Forecasts (ECMWF), and 11 European National Meteorological Services, who are also EUMETNET Members, with the Finnish Meteorological Institute (FMI) acting as the project coordinator.











What was EUMETNET’s role in the RODEO project?



The RODEO project was organised into several work packages covering the development of the EUMETNET Supplementary Observations data-Hub (E-SOH), the Open Radar Data (ORD) service, the Climate Data Aggregator service, the Warning service, and MeteoGate as a common user interface for accessing these datasets. Additional work packages were dedicated to engagement with data providers and users and to the overall management of the project. The real-time surface observations service (E-SOH) and the ORD service are based on the common Observations Acquisition Storage & Interface Software (OASIS), which was also developed within the RODEO project.

Work packages on the development of MeteoGate and engagement with data providers and users were managed by the EUMETNET Secretariat.

The sustainability of all RODEO project results has been ensured through their integration into the operational EUMETNET activities, with the Climate Aggregator service also supporting the Copernicus Climate Change Service (C3S).

Any RODEO inquiries can be sent to rodeoproject[at]fmi.fi











Featured Images

















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National Met Services from the following
33 countries are EUMETNET Members









Our Partner Organisations


WMOEUMETSATECMWFEUROCONTROL

EEAEUROGOOSEPOSEMS







Contact us


EUMETNET SNC
c/o L'Institut Royal Météorologique
Avenue Circulaire 3
1180 Brussels, Belgium

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E-mail: info[at]eumetnet.eu







copyright EUMETNET SNC ©2025




Legal information























Participants and Collaborations







utoPollen programme participants come from 25 institutes and associations from 22 countries that are either EUMETNET members or cooperating third parties. An extensive list of participants, as well as a list of publications and links to projects and networks across Europe, can be found on the AutoPollen website along with relevant data.


Furthermore, the AutoPollen programme collaborates with several European-level projects and organisations, including: Horizon Europe Project SYLVA (A SYstem for ReaL-Time ObserVation of Aeroallergens), Copernicus Atmospheric Monitoring Services (CAMS), the COST Action ADOPT (New Approaches in Detection of Pathogens and Aeroallergens – CA18226), EURAMET on the BioAirMet project, and Working Group 39 of the European Normalisation Committee (CEN - Technical Committee 264). 



















Post-Processing Benchmark







The benchmark is a key deliverable of the EUMETNET Post-Processing module, designed to provide high-quality benchmark datasets and infrastructures for comparing the various methods used to post-process forecasts in National Meteorological Services.

The benchmark is composed of two components: gridded post-processing, which requires gridded observations, forecasts, and reforecasts; and station-based post-processing, which requires station observations and forecasts and reforecasts at the nearest point.

For more information on the benchmark activities of the PP module, you can visit our website:
https://eupp-benchmark.github.io

Technical details and relevant codes are developed on GitHub:
https://github.com/orgs/EUPP-benchmark



















Benchmark Datasets







Base dataset – Low-resolution gridded data 
The benchmark base dataset is a low-resolution gridded dataset that covers the European area from 36 to 67° in latitude and from -6 to 17° of longitude, with grid spacing of 0.25°x0.25°.

The benchmark dataset consists of 47 fields, with at least seven requiring post-processing. It includes daily forecasts at midnight, which feature ensemble, control, and high-resolution ECMWF runs, as well as reforecasts twice a week and hourly analysis data. The training set covers 2017 and 2018, while the test set is for 2019. The total size of the gridded benchmark is about 6 terabytes (TB), with the training set being 4.3 TB and the test set 1.6 TB. This dataset provides a solid basis for evaluating and comparing different post-processing methods used by National Meteorological Services.

More details about the base dataset can be found at https://eupp-benchmark.github.io/EUPPBench-doc/files/base_datasets.html.

EUPPBench datasets 
In addition to the base dataset, specific datasets for statistical and machine learning over a smaller domain have been designed. The EUPPBench datasets are available over a smaller area within Europe, stored in Zarr format for easy access. The forecasts and observations datasets are already paired together, providing analysis-ready data for post-processing benchmarking purposes. 



The EUPPBench datasets also include station data all over the selected domain and ECMWF forecasts and reforecasts from the nearest grid point.  
With these datasets, the first benchmark of several post-processing methods was conducted and published in Earth System Science Data (ESSD). More details on the EUPPBench datasets and this first benchmark can be found at https://essd.copernicus.org/articles/15/2635/2023/.



An example of deterministic IFS forecast for 100m u wind and the corresponding gridded observations in the EUPPBench dataset.



















Publications







Paola Salio, Luciana Stoll, Daniela D’Amen, Estelle De Coning, Hellen Msemo, Franziska Schmid, Solfrid Agersten, Anders Sivle, André Simon, Maria Julia Chasco, 2025: Nowcasting and Early Warning Systems across WMO Regions Associations: A Pre-EW4All Assessment, BAMS, DOI: https://journals.ametsoc.org/view/journals/bams/106/12/BAMS-D-24-0267.1.xml

Bojinski S, Blaauboer D, Calbet X, de Coning E, Debie F, Montmerle T, Nietosvaara V, Norman K, Banon L, Schmid F, Strelec Mahovic N, Wapler K, 2023: Review: Towards Nowcasting in Europe in 2030, Meteorological Applications, https://doi.org/10.1002/met.2124

Special Issue in Meteorologische Zeitschrift, Development and Application of Seamless Prediction Systems 
Part I: https://www.schweizerbart.de/papers/metz/list/29#issue3
Part II: https://www.schweizerbart.de/papers/metz/list/29#issue4

Sivle A, Agersten S, Schmid F, Simon A, 2022: Use and perception of weather forecast information across Europe, Meteorological Applications, https://doi.org/10.1002/met.2053

Schmid F, Wang Y, Harou A, 2019: Nowcasting Guidelines - A summary, WMO Bulletin 68(2), 63-68; https://library.wmo.int/viewer/38575/?offset=#page=3&viewer=picture&o=bookmarks&n=0&q=

WMO in cooperation with E-NWC, 2017: Guidelines for Nowcasting Techniques, WMO Nr. 1198,  
https://library.wmo.int/records/item/55666-guidelines-for-nowcasting-techniques



















European Nowcasting Conferences (ENC)







European Nowcasting and Weather Forecasting Conferences (ENWFC)

ENWFC 2026:
Conference Information: https://eumetcal.eu/en/ui#/page/enwfc-2026

ENWFC 2024:
Conference Information: https://enwfc-2024.met.no/
Conference paper: DOI: https://doi.org/10.1127/metz/20252

European Nowcasting Conferences (ENC)

ENC 2022:
Conference Information : https://eumetcal.eu/en/ui#/page/ENC2022%20
Conference paper: DOI:10.1127/metz/2022/1156

ENC 2019:
Conference Information : https://enc2019.aemet.es/
Conference paper: DOI: 10.1127/metz/2019/0983

ENC 2017:
Conference Information : https://www.dwd.de/EN/specialusers/research_education/seminar/2017/enc/enc_en.html 
Conference paper: DOI: 10.1127/metz/2017/0870

ENC 2014: 
Conference Information : http://www.zamg.ac.at/ENC2014/
























Cooperation with WMO







Several international meteorological organisations collaborated on a research project examining nowcasting capabilities and Early Warning Systems across different global regions. Working groups from the World Meteorological Organization's World Weather Research Programme and EUMETNET's Nowcasting module led this initiative.

More details can be found here: https://wwrp-nowcastingcapabilities.com/



















METEOALARM Website







38 European National Meteorological Services contribute to the consistent visualisation of weather awareness information, thereby ensuring coherent interpretation of multi-hazard early warnings throughout Europe.

Visit the MeteoAlarm Website for the latest weather-related awareness situation and further information. 





















METEOALARM Feeds







The MeteoAlarm Feeds provide a thorough summary of active multi-hazard early warnings, aggregated according to each NMS contributing to MeteoAlarm. Subscriptions to Atom and RSS Feeds are easy to access.

Information necessary for redistributing warnings from the contributing NMSs is accessible in the Redistribution Hub on the MeteoAlarm Website. It includes the MeteoAlarm Redistribution Guide, the MeteoAlarm Common Alerting Protocol (CAP) Profile, the Service Level Agreements (SLAs), and other relevant documentation. 



















METEOALARM APIs







In the RODEO Project, new Application Programming Interfaces (APIs) are being developed for MeteoAlarm. These APIs enable access to multi-hazard early warnings through cross-border queries and bulk downloads for archived warnings. The goal is to improve the sharing and accessibility of warnings by integrating these capabilities into MeteoAlarm, including Near-Real-Time, Archived Warning, and Storm Name APIs. 



















Early Warnings for All







“Early Warnings for All is a groundbreaking initiative to ensure that everyone on Earth is protected from hazardous weather, water, or climate events through life-saving early warning systems by the end of 2027."

The EMMA Programme supports these activities within the WMO Regional Association VI (Europe) by providing life-saving multi-hazard early warnings to the public across 38 European countries, with the potential to extend its capacities to other countries as the initiative progresses. 



















MeteoGate Principles







1- MeteoGate will enable the sharing of hydrological and meteorological data holdings both within the European Meteorological Infrastructure (EMI) and between the EMI and external stakeholders (global WMO community, public and private sector bodies, research institutions, citizens, etc.). The MeteoGate System will be part of the WMO Information System and will implement the WIS 2.0 principles.

2- The initial scope of MeteoGate includes sharing the following categories of data: Core Data (WMO Unified Data Policy), Meteorological High-Value Data (EU Regulation 2019/1024), and Data for Official Duty1. The MeteoGate System will be extensible so that additional functions can be incorporated as user requirements emerge.

3- MeteoGate will enable data sharing in a manner that is compliant with national and international legislation, regulation, and policy commonly applicable to the EMI, with priority given to obligatory requirements.

4- MeteoGate will support the data-sharing policies commonly used within the EMI, including but not limited to free and open data exchange. 

5- MeteoGate will neither affect ownership of shared data holdings nor impose additional conditions on data sharing.

6- The ownership, origin and license / usage terms of data holdings shared via MeteoGate will be visible to all stakeholders.

7- Policies and technical standards ensuring interoperability and consistency of operation among components of the MeteoGate will be mutually agreed and maintained by European NMHSs, EUMETSAT and ECMWF under the auspices of EUMETNET.

8- MeteoGate will be comprised of multiple components (e.g. data sharing platforms and systems), each owned and operated by constituents of the EMI and conforming with the mutually agreed policies and technical standards. Providers of MeteoGate components are encouraged to develop and/or operate them in a manner that supports the community. MeteoGate components may form part of national data-sharing infrastructures and vice versa.

9- MeteoGate will build upon existing data-sharing infrastructures, incorporating them when they conform to the mutually agreed policies and standards. MeteoGate will undergo continuous development as needs arise in the EMI.

10- MeteoGate will provide access to data holdings in-situ where local capability exists to do so. Moving data to a remote system only to support data sharing should be avoided.

11- MeteoGate will have a single catalogue describing all its data holdings and will provide mechanisms to enable users to search for the data they need. MeteoGate will make metadata contribution to the catalogue easy; aiming to avoid duplicate effort where data providers contribute to multiple data sharing initiatives. 



















MeteoGate Community Components







MeteoGate Community components are needed to deliver shared capabilities, e.g. a data catalogue or access management. They will be established and operated by EUMETNET or its members and useable by data publishers and consumers inside and outside the hydro-meteorological community. 


1- A shared Data Catalogue defining and describing data assets and data collections, indexed, linked, and searchable to support data discovery and usage.

2- A Message Broker with a subscription service for notifications about the updates to both discovery metadata and the data.

3- Identity & Accessmanagement to control user and system access to platforms and platform services.

4- API management providing the interface between data consumers and underlying data stores, enabling managed access and usage of data and data products.

5- An Insights service
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