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

Emma Woolliams

Principal scientist
Back to all chairs and co-chairs

Emma Woolliams, a principal scientist at the National Physical Laboratory, works in the overlap between metrology and climate-relevant observations. Her personal research considers how to provide metrological traceability and uncertainty assessments of satellite observations and the non-satellite datasets that are used in satellite validation. Such research began with radiometric satellite sensors, a natural progression from her early career at NPL (since 1998) with responsibility for spectral radiance and irradiance scales. Over time, however, she has expanded her work to cover microwave radiometers and radar altimeters, and to consider a broad range of essential climate variables from sea level to sea ice thickness, from sea surface temperature to river elevations. Emma is particularly interested in developing the guidelines and approaches that work across these broad applications and has been involved in initiatives through the Committee on Earth Observation Satellites (CEOS) to establish the Quality Assurance framework for Earth Observation (QA4EO) and the related fiducial reference measurement and similar initiatives. Emma also chairs the European Metrology Network for Climate and Ocean Observation, an initiative of EURAMET that provides the European contribution to a global effort to bring metrology into climate and ocean observations.