World Meteorological Organization

The 22^nd WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases and Related Tracers Measurement Techniques (GGMT-2024) took place back-to-back with the 11^th International Carbon Dioxide Conference on 5-8 August 2024 at the INPE campus in Sao José dos Campos, Brazil.

 

NEW Measurement guidelines for Stable Carbon Isotope Ratio of CH4 has been just published by the IAEA.

The topics covered at the meeting include:

1. Quality assurance of greenhouse gas measurements
2. Quality assurance of the measurements of the stable isotopes
3. Measurements and quality assurance for ¹⁴C, O₂/N₂ and related tracers
4. Data products and utilization of the observations
5. Advances in the traditional greenhouse gas measurement techniques
6. Emerging Observation Techniques including low-cost sensors, Remote Sensing and Integration of Observations
7. Observations from the mobile platforms (aircraft, drone, balloon, etc) and over/in the ocean
8. GHG flux and ocean pCO₂ observations
9. Urban Networks and Observations

Recommendations of GGMT-2022 are available in the WMO library. The meeting reviewed these recommendations. The draft will be made available here soon for the discussion.

Meeting presentations

5 August 2024, Monday

WMO IG3IS Integrated Global Greenhouse Gas Information System	Jocelyn Turnbull
Progress in managing urban observation data in the ICOS Cities/PAUL project	Alex Vermeulen
Chinese fluorinated greenhouse gas emissions inferred from atmospheric observation	Bo Yao
Forests as a sink for carbon in Aotearoa New Zealand	Gordon Brailsford

6 August 2024, Tuesday

Solicited presentation on the Global Greenhouse Gas Watch	Oksana Tarasova
Improving CRDS water corrections and removing data biases	Ann Stavert
Remote sensing of total column greenhouse gases with a portable, fibre-optic-coupled EM27 solar Fourier Transform spectrometer	David Griffith
Supporting a Real-time Autonomous GHG Monitoring Network	Tyler Boyle
Top-down and bottom-up measurements of greenhouse gases emissions:  closing the loop	Frederic Despagne (ABB)
A single device for monitoring of concentrations and fluxes of greenhouse gases and related tracers	Morten Hundt (MIRO Analytical AG)
An Improved Analyzer for High-Precision and Low-Drift N2O and CO Ambient Monitoring	Kate Martin (Picarro)
Tracking Emissions from Site to Provincial Scale	Felix Vogel
Quantification of point source methane emissions based on mobile measurements and large eddy simulations	Huilin Chen
Carbon and hydrogen isotope ratios of methane in the upper troposphere/lowermost stratosphere observed by commercial airliners	Ryo Fujita
Perspectives and importance of the first Brazilian Ship-of-Opportunity line	Raquel Oliveira
Greenhouse gas observations over the ocean	Rik Wanninkhof

7 August 2024, Wednesday

Estimation of the fossil fuel fraction of CO2 measured in Paris based on radiocarbon, and co-emitted species (NOx, CO, BC)	Ingrid Chanca
High-precision measurements of the helium-to-nitrogen ratio in air	Eric Morgan
Enhancing Global 14CO2 Data Consistency Through Inter-Laboratory Comparisons	Samuel Hammer
Direct high-precision radon quantification for interpreting high frequency greenhouse gas measurements	Dafina Kikaj
Update on the NOAA CO2 X2019 scale	Andrew Crotwell
An introduction to NOAA’s data QC tagging system for greenhouse and trace gas observations	John Mund
Supporting the global measurement infrastructure and reporting values on a common scale	Paul Brewer
Challenges in the monitoring of atmospheric composition	Christoph Zellweger
Developing KRISS CO2 and CH4 Scales and Isotope Reference Materials: Current Activities and Future Plans	Sangil Lee
Laboratory assessment of mid-infrared absorption (MIRA) analyzers measuring methane and ethane for use in tower-based deployments	Natasha Miles
Transition to laser spectroscopy for N2O and CO analysis at the CCL, and re-assessment of the X2014 CO scale	Bradley Hall
CSIRO perspectives on 30 year calibration stability of CO, H2, CO2, CH4 and N2O	Ray Langenfelds
Accounting for CO2 isotopic composition inhomogeneity in standard gases used for isotopologue specific CRDS measurements	Armin Jordan
CO2, CH4 and its isotopes, and carbon flux measurement network in India	Yogesh Tiwari
On-demand comparisons of CO2 in air standards to support scales maintenance and assessment of stable relationships between them	Joële Viallon

8 August 2024, Thursday

The “LSVEC problem” for the Vienna Peedee belemnite carbon isotope-delta scale	Federica Camin
Measurements and calibration for high precision continuous monitoring of stable isotope ratios in atmospheric methane	Christopher Rennick
Improved analytical capability and measurement traceability in stable isotope measurements of greenhouse gases at INSTAAR-SIL.	Sylvia Michel
Atmospheric δ13C in CO2 inter-comparison experiment at Baring Head Observatory over 20 years	Haeyoung Lee
Metrological challenges due to absence of reference materials for CH4 isotopes: developing community reference gases for CH4 isotopes in air and measuring laboratory differences with round robins	Peter Sperlich
Large-scale production of traceable Isotopic Methane Gas Reference Materials	Ruth Hill-Pearce
40+ years of δ13C-CO2 and δ18O-CO2 measurements of atmospheric air at Kennaook/Cape Grim and other sites	Colin Allison
Measurements of δ13C-CO2 and δ18O-CO2 on Whole Air Samples with Tunable Infrared Laser Direct Absorption Spectroscopy (TILDAS) and Sample-Reference Switching	Eric Morgan
Greenhouse Gas Monitoring in the Northeast Corridor	Tyler Boyle
Disaggregating anthropogenic and biogenic source sectors and improving the spatial resolution of tower-based emissions estimation: Update from the Indianapolis Flux Project	Natasha Miles
Towards accurate quantification of methane emissions from waste and agricultural sources	Peter Sperlich
Soil surface H2 fluxes from typical forest soil in the Yangtze Delta River, China	Shuangxi Fang

 

Virtual poster gallery

Maria Makarova (Saint Petersburg State University ) "Evaluation of greenhouse gas emissions from the territory of St. Petersburg by the results of the EMME mobile observational campaign"