| 09:00 | 09:15 | Opening of the meeting, welcome and CIPM STG CENV: Role and Goals | 
| 09:15 | 09:25 | Emma WOOLLIAMS – Lost in translation: The need for common vocabularies and an interoperable thesaurus in Earth sciences | 
| 09:25 | 09:35 | Philippe GORYL – Committee on Earth Observation Satellites / Working Group Cal/Val – CEOS WGCV – toward Fiducial Reference Measurements | 
| 09:35 | 09:45 | Nigel FOX – Fiducial Reference Measurements: What are they? And how do we assure them? | 
| 09:45 | 09:55 | Moritz FEIERABEND – Metrology for climate actions: PTB’s Innovation Cluster Environment and Climate | 
| 09:55 | 10:25 | Chair – Summary of Key Issues and Discussion | 
| 10:30 | 11:00 | Pre Discussion | 
| 11:00 | 11:10 | Katarzyna BIELSKA – Coordinated interlaboratory comparisons of CO line intensities: towards primary spectroscopic measurements of the amount of gas and spectroscopic reference data for high-accuracy remote sensing applications | 
| 11:10 | 11:20 | Gottfried KIRCHENGAST – Met(eo)rology united for climate: GNSS radio occultation as SI-traceable global reference refractometer for atmospheric climate monitoring | 
| 11:20 | 11:30 | Thérèse SALAMEH – ACTRIS-EU topical centre for reactive trace gases in situ measurements CiGas: activities and future developments | 
| 11:30 | 11:40 | Andrea MERLONE – Enhancing Atmospheric Air Temperature Measurements: A Global Scientific Endeavour | 
| 11:40 | 11:50 | Maitane ITURRATE-GARCIA – Transferring metrological principles to low-cost sensors used in networks for air quality monitoring | 
| 11:50 | 12:00 | J. Daniel PRADES -Quantumtechnology, Metrology and climate actions | 
| 12:00 | 12:30 | Co-Chairs – Summary of Key Issues and Discussion | 
| 13:30 | 13:40 | Katelyn SCHOCKMAN – Development and Characterization of Atlantic Seawater Inorganic Carbon Reference Materials | 
| 13:40 | 13:50 | Marc LE MENN – The TRUSTED buoys: an FRM network for SST measurement | 
| 13:50 | 14:00 | Steffen SEITZ – CCQM-EAWG Task Group on Metrological Traceability for Seawater pH and pHT Values | 
| 14:00 | 14:10 | Regina EASLEY-VIDAL – Development of NIST Measurement Services for the Inorganic Carbon System in Seawater | 
| 14:10 | 14:20 | Andrew DICKSON – Assigning values of total dissolved inorganic carbon to CO2-in-seawater reference materials | 
| 14:20 | 14:30 | Paola FISICARO – Toward metrological traceability of pHT measurement results to support ocean acidification observations | 
| 14:30 | 15:00 | Co-Chairs – Summary of Key Issues and Discussion | 
| 15:10 | 15:30 | Pre Discussion | 
| 15:30 | 15:40 | Julian GIESELER – Towards comparing the IR scales underpinning Libera and FORUM | 
| 15:40 | 15:50 | Steven DEWITTE – Global Stocktake from Space: the Earth Climate Observatory (ECO) for the monitoring of the Earth Energy Imbalance (EEI) | 
| 15:50 | 16:00 | Daniela NAREZO GUZMAN – Realization of a novel vacuum FIR calibration system in support of ESA’s 9th Earth Explorer Mission FORUM at PTB | 
| 16:00 | 16:10 | Ruben URRACA – Uncertainty characterization and validation of BSRN in-situ shortwave radiation fluxes | 
| 16:10 | 16:20 | Thomas AUGUST – Traceable Radiometry Underpinning Terrestrial- and Helio- Studies (TRUTHS) – A ‘gold standard’ imaging spectrometer in space for radiation imbalance and in support of the climate emergency | 
| 16:20 | 16:30 | Emma WOOLLIAMS – CCPR response to the recommendations of the BIPM-WMO Metrology for Climate Action Workshop | 
| 16:30 | 17:00 | Summary of Key Issues and Discussion | 
| 17:00 | 17:10 | Benjamin RAPP – Development and improvement of instrumentation and metrological methods in European Biosphere project for determining the dependence of secondary cosmic rays flux on primary cosmic rays and atmospheric parameters | 
| 17:10 | 17:20 | Isabel RODRÍGUEZ-VEIGA – Sediment core dating using fallout radionuclides 137Cs and 210Pbxs in core samples from prePyrenees and Sierra de las Nieves National Park | 
| 17:20 | 17:30 | Alexis DERU – Recent progress on uncertainties for Sentinel Earth Observation products | 
| 17:30 | 17:40 | Anna PUSTOGVAR – Towards a framework for uncertainty propagation for land cover maps produced by machine learning classification methods | 
| 17:40 | 17:50 | FREDERIC MELIN – The beauty of comparison: Example of simultaneous radiometric measurements to verify and estimate uncertainties for ocean remote sensing reflectance data | 
| 17:50 | 18:00 | Juha PELTONIEMI – A method for evaluating the effect of spectrally unknown contributions to the uncertainty of Earth Observation quantities | 
| 18:00 | 18:30 | Co-Chairs – Summary of Key Issues and Discussion | 
| 09:00 | 09:20 | IPCC Dr. Robert Vautard, Co-Chair of Task group 1 | |
| 09:20 | 09:30 | Discussion | 
| 09:30 | 09:40 | Carmen GARCIA I. – Intercomparison of radiation shields in polar climate. COAT Project | 
| 09:40 | 09:50 | Clément BESNARD-V. – Cosmic neutrons metrology for permafrost studies: ground-ice content monitoring | 
| 09:50 | 10:00 | Sajedeh BEHNIA – St3TART-FO: Establishing a framework for operational Fiducial Reference Measurements (FRM) for Sentinel-3 Hydro-Cryo Altimetry products and beyond | 
| 10:00 | 10:10 | Igor APPEL – Gaps in Metrology for Terrestrial Snow Cover | 
| 10:10 | 10:20 | Sten BERGSTRAND – Geodesy for Climate Observations | 
| 10:20 | 10:30 | Ashley MORRIS – Svalbard as a supersite for cryosphere-observing satellite calibration and validation (Cal/Val) activities | 
| 10:30 | 11:00 | Co-Chairs – Summary of Key Issues and Discussion | 
| 11:30 | 11:50 | WMO G3W initiative: Gianpaolo Balsamo (WMO) | 
| 11:50 | 12:10 | Andreea Calcan (UNEP) – UNEP The UN Environment Programme International Methane Emissions Observatory (IMEO) | 
| 12:10 | 12:30 | Leonard Rivier (ICOS) – ICOS activities in Europe | 
| 13:30 | 13:50 | Richard Barker (NPL) – UK GEMMA initiative | 
| 13:50 | 14:10 | Hong Lin (NIM) – Initiatives in China | 
| 14:10 | 14:30 | Ben Poulter – Overview of the U.S. GHG Measurement and Monitoring Information System | 
| 14:30 | 14:50 | Argie Kavvada – Director of the U.S. Greenhouse Gas Center (US GHG Center) | 
| 14:50 | 15:10 | All – Discussion on how Metrology programmes can support such initiatives | 
| 14:50 | 15:10 | All – Discussion on how Metrology programmes can support such initiatives (Part 2) | 
| 15:40 | 15:50 | Sangil LEE – Developing KRISS CO2 and CH4 Scales and Isotope Reference Materials: Current Activities and Future Plans | 
| 15:50 | 16:00 | Tobias BÜHLMANN – SI-traceable quantification of halogenated VOCs in the atmosphere | 
| 16:00 | 16:10 | Hratch SEMERJIAN – New Working Group Formed to Develop ISO Standards on Greenhouse Gas Measurements | 
| 16:10 | 16:20 | Christoph NEHRBASS-AHLES – Facilitating the development of a global measurement infrastructure for the measurement of stable isotope ratios for greenhouse gases source apportionment | 
| 16:20 | 16:30 | Chris RENNICK – Calibration and reference materials for optical isotope ratio spectroscopy measurements of atmospheric methane | 
| 16:30 | 16:40 | Jennifer CARNEY – Progress of the CCQM-GAWG Task Group on GHG Scale Comparisons | 
| 16:40 | 17:10 | Co-Chairs – Summary of Key Issues and Discussion | 
| 17:10 | 17:20 | Liang ZHANG – Research on Overestimation of CO2 Emission Inventory in Industrial Plants | 
| 17:20 | 17:30 | NEETI SINGH – Enhancing Remote Sensing and Infrastructures Meeting Challenges of greenhouse gas emission through System Integration and Continuous Improvement | 
| 17:30 | 17:40 | Tom GARDINER -The UK’s Greenhouse gas Emission Emissions Measurement and Modelling Advancement (GEMMA) Programme – towards an operational greenhouse gas emissions evaluation system | 
| 17:40 | 17:50 | Frédéric CHEVALLIER – A world of hexagons on graphics processing units: new numerical paradigms for atmospheric inversion | 
| 17:50 | 18:00 | Dagmar KUBISTIN -The Integrated Greenhouse Gas Monitoring System (ITMS) for Germany | 
| 18:00 | 18:10 | Jean-Daniel PARIS -Challenges in addressing diffuse emissions with in situ methane emission quantification | 
| 18:10 | 18:30 | Co-Chairs – Summary of Key Issues and Discussion | 
| 09:00 | 09:10 | Talaat A ENG. ALRAHALI – Nanometric techniques for climate, data flow analysis and gas concentration | 
| 09:10 | 09:20 | Meghan N. BEATTIE – Airborne methane sensors: Emission flux quantification from uncrewed aerial vehicles | 
| 09:20 | 09:30 | Colm SWEENEY – The atmospheric profile for GHG – the way to the future | 
| 09:30 | 09:40 | Jinliang ZANG – Research on Field Calibration of Differential Absorption Lidar with Controlled Release Facility in Methane Emission Measurement | 
| 09:40 | 09:50 | Helen KENION – Use of Monin-Obukhov Similarity Theory to estimate urban greenhouse gas emissions from mole fraction measurements and comparison to eddy covariance and a high-resolution inventory | 
| 09:50 | 10:20 | Co-Chairs – Summary of Key Issues and Discussion | 
| 09:50 | 10:20 | Co-Chairs – Summary of Key Issues and Discussion (Part 2) | 
| 10:50 | 11:00 | Pre discution | 
| 11:00 | 11:10 | Joshua LAUGHNER – Current methods to link space-based GHG missions to in situ standards through ground-based FTIR observations | 
| 11:10 | 11:20 | Paul GREEN – Satellite-derived methane product standards | 
| 11:20 | 11:30 | Mahesh Kumar SHA – Fiducial Reference Measurement for Greenhouse Gases (FRM4GHG) and their applications | 
| 11:30 | 11:40 | Ilse ABEN – MEDUSA: Methane Emissions Detection Using Satellites Assessment | 
| 11:40 | 11:50 | Dietrich G. FEIST – Implementation of SI-traceability in the TCCON and COCCON observations: the Metrology for Comparable and Trustworthy Greenhouse gas remote sensing datasets (MetCTG ) initiative | 
| 11:50 | 12:20 | Co-Chairs – Summary of Key Issues and Discussion | 
| 11:50 | 12:20 | Co-Chairs – Summary of Key Issues and Discussion (Part 2) | 
| 13:20 | 13:30 | Brian BUMA – Sources of uncertainty in nature based carbon measurements for CDR | 
| 13:30 | 13:40 | Rajesh NAIR – The challenge of integrating metrologically significant information in Ocean Data reporting and exchange | 
| 13:40 | 13:50 | Jessica CROSS – Improving metrology for carbon removals, alongside metrology for carbon emissions | 
| 13:50 | 14:00 | Paul ROBIN – Using three levels to characterize the verification of national emissions from livestock houses | 
| 14:00 | 14:10 | FRANCISCO SÁNCHEZ-JIMÉNEZ – Analysis and Prediction of Ozone Pollution in the Mediterranean Basin through the temporal reconstruction of a High Accuracy Database | 
| 14:10 | 14:20 | Brian WASHBURN – Monitoring Beef Cattle Methane Mitigation Using Open-Path Dual-Comb Spectroscopy | 
| 14:20 | 14:50 | Co-Chairs – Summary of Key Issues and Discussion | 
| 14:50 | 15:30 | D del Campo – Next Steps and closing remarks | 
| 15:30 | Close |