1st CIPM STG-CENV • Stakeholder meeting • 16-18 September 2024 • BIPM • Sèvres (France)

Meeting organization

Theme 1: Metrology in support of the physical science basis of climate change and climate Observations

Code Topic Co-chair 1 Co-chair 2

Atmosphere Physics and Chemistry

Betsy Weatherhead
Fabio Madonna

Oceans and Hydrology

George Petihakis
Johannes Karstensen

Earth Energy Balance

Laurent Vuilleumier
Thorsten Fehr

Biosphere Monitoring

Julia Marrs
Rubén Urraca

Cryosphere Monitoring

Emma Woolliams
Filomena Catapano

Cross-cutting issues

Dolores del Campo


Emma Woolliams
Fabio Madonna

Theme 1: recommendations






Theme 2: Metrology as an integral component of operational systems to estimate greenhouse gas emissions based on accurate measurements and analyses

Code Topic Co-chair 1 Co-chair 2

Accuracy requirements for atmospheric composition measurements across economic sectors, and temporal and spatial scales

Robert Wielgosz
Sergi Moreno Valero

State of play in integrated approaches for advanced GHG emission estimates and the way forward to operational services.

Leonard Rivier
Phil de Cola

Novel GHG concentration and flux methods and sensors

Hong Lin
Kevin Cossel

Strengthening the linkage of remote sensing GHG concentration measurements to emission fluxes

Richard Barker
Annmarie Eldering

Emerging Metrology Issues (Oceans, CCUS, CDR, Agricultural Emissions…)

Maribel Garcia-Ibañez
Pamela Chu

Chairs and co-chairs

Thorsten Fehr

Head of Atmosperic Section at European Space Agency
Back to all chairs and co-chairs

Thorsten Fehr is heading the Atmospheric Section in the European Space Agency’s Earth Observation Directorate where his team is responsible for the scientific preparation of ESA’s atmospheric research and operational satellite missions. Thorsten earned his PhD in Atmospheric Physics at the German Aerospace Center (DLR) studying the impact of lightning induced nitrogen oxide emissions on ozone chemistry using models, airborne and ground-based cloud and atmospheric chemistry measurements. Following further research activities in this domain, he joined the European Space Agency (ESA) in Italy being responsible for the quality of satellite remote sensed atmospheric chemistry products. Later, Thorsten moved to the ESA center in Noordwijk, the Netherlands, first as campaign scientist and later taking reasonability for the Atmospheric Section. He is the Mission Scientist for ESA’s Aeolus and EarthCARE missions and supported the TRUTHS mission in this role until early 2024.