Guides Papers Boreas: A Sample Preparation-Coupled Laser Spectrometer System for Simultaneous High-Precision in Situ Analysis of δ13C and δ2H from Ambient Air Methane Chris Rennick, Tim Arnold, Emmal Safi, Alice Drinkwater, Caroline Dylag, Eric Mussell Webber, Ruth Hill-Pearce, David R. Worton, Francesco Bausi, and Dave Lowry Optical Isotope Ratio Spectroscopy – Complementing Isotope Ratio Mass Spectrometry Jelka Braden-Behrens, Heleen Meuzelaar, Joachim Mohn, Javis A. Nwaboh, Stefan Persijn, Francesca Rolle, Michela Sega, Pharahilda M. Steur, Lars Wacker, Kerstin Zeyer, Olav Werhahn and Volker Ebert Generation of CO2 gas mixtures by dynamic dilution for the development of gaseous certified reference materials Francesca Rolle, Francesca Durbiano, Francesca Romana Pennecchi, Stefano Pavarelli, Marco Santiano, Pier Giorgio Spazzini and Michela Sega Reference Materials: gas mixtures to support measurements for climate change studies Michela Sega, Stefano Pavarelli, Francesca Romana Pennecchi, Pier Giorgio Spazzini and Francesca Rolle Preventing drift of oxygen isotopes of CO2-in-air stored in glass sample flasks: new insights and recommendations Pharahilda M. Steur, Dennis Botter, Hubertus A. Scheeren, Heiko Moossen, Michael Rothe and Harro A. J. Meijer Meetings (presentations etc) & Conferences Dneve Jožefa Stefana / Jožef Stefan Open Day, March 2021 European Geosciences Union General Assembly EGU 2021, April 2021 vEGU21, April 2021 Optics and Photonics for Sensing the Environment 2021, July 2021 Swiss Chemical Society Fall Meeting SCS 2021, September 2021 XXIII IMEKO World Congress, September 2021 V International Scientific and Technical Conference “Metrology of Physicochemical Measurements”, September 2021 Gas Analysis 2022, May 2022 ISI+Isotopes 2022, June 2022 GGMT 2022 Interlaboratory compatibility of δ13C-VPDB scale realisation by Heiko Moossen Metrology for Climate Action (WMO-BIPM workshop), September 2022 JESIUM 2022, October 2022 2nd ISO-FOOD Symposium, April 2023 M1 Project KO Meeting 17 September 2020 M6 Stakeholder Catch-Up WP1 Next generation carbon dioxide isotope ratio gas reference materials by Harro Meijer, RUG WP2 First time isotope ratio gas reference materials for δ13CH4 and δ2H-CH4 by Stefan Persijn, VSL WP3 Advancing optical isotope ratio spectroscopy for carbon dioxide and methane by Jelka Braden-Behrens, PTB WP4 Creating Impact by Garry Hensey, NPL M9 Project Meeting 26 May 2021 M18 Project Meeting 11 Feb 2022 M27 Project Meeting 11 October 2022 M36 Project Meeting & Stakeholder Workshop 3-4 July 2023 CCQM-IRWG Report from SIRS and STELLAR by Paul Brewer Posters 19ENV05 STELLAR – Project Introduction Long term performance of a dual-laser absorption spectrometer for the measurement of δ13C, δ18O and Δ17O of CO2 by P.M. Steur Validation of Boreas: an instrument for simultaneous measurement of amount fraction and stable isotope ratios in methane by Cameron Yeo, Chris Rennick, Emmal Safi & Tim Arnold Stakeholder Newsletters 19ENV05 STELLAR – Newsletter #1 19ENV05 STELLAR – Newsletter #2 Summary M1 Publishable Summary for 19ENV05 STELLAR Stable isotope metrology to enable climate action and regulation M9 Publishable Summary for 19ENV05 STELLAR Stable isotope metrology to enable climate action and regulation
