Stephan Siemen currently leading various strategic activities across ECMWF, many involving external stakeholders, like the WMO, NOAA and the European Commission. For one of these activities, AI for the Public Good as part of the EU-US Trade and Technology Council, he leads the technical developments on the European side on the Weather topic on improving the forecasts of tropical cyclones in the Caribbean and Heat Stress forecast in urban areas.
He was seconded for three years (2021-2024) as a Policy Officer to the European Commission in Luxembourg. As part of the Open Science and Digital Modelling unit at DG-CNECT he is involved in the work around the Destination Earth initiative, the European Open Science Cloud (EOSC) and other research infrastructure initiatives across Europe.
Before his secondment, Stephan was for almost a decade leading the Development Section at ECMWF. The section develops software and services to support core activities at ECMWF. As part of this he was also involved in the management of multi-year projects like the pilot of the European Weather Cloud and the technical part of the IFShub project.
Stephan was directly involved in the development of the plotting package Magics and supported in general new developments on visualisations at ECMWF.
- Offering of cloud services for Big Data weather and climate data processing
- Visualisation of meteorological data
- Providing efficient access to large data sets
- Software development methodologies and modern programming models & languages
- Strategic Projects Coordinator, Forecast and Services Department, ECMWF, July 2024 - ongoing
- Policy Officer (SNE), Open Science and Digital Modelling unit, DG-CNECT, European Commission, May 2021 - June 2024
- Head of Development Section, Forecast Department, ECMWF, 2013 - 2021
- Head of Graphics / Meteorological Visualisation Section, Operations Department, ECMWF, 2007 - 2013
- Analyst working on Magics, Graphics Section, Operations Department, ECMWF, 2003 - 2007
- Senior Research Officer, Propagation Laboratory, Mathematics Department, University of Essex, 2001 - 2003
- 2021
- Julia Wagemann, Stephan Siemen, Bernhard Seeger, Jörg Bendix (December 2021) Users of open Big Earth data – An analysis of the current state, Computers & Geosciences. DOI: 10.1016/j.cageo.2021.104916
- Julia Wagemann, Stephan Siemen, Bernhard Seeger, Jörg Bendix (December 2021) A user perspective on future cloud-based services for Big Earth data, International Journal of Digital Earth. DOI: 10.1080/17538947.2021.1982031
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