Current work – clumped isotopologues of methane (Δ13CH3D and Δ12CH2D2)
Defratyka S.M., Fernandez J.M., Adnew G.A., Dong G, Douglas P.M.J., Eldridge D.L., Etiope G., Giunta T., Haghnegahdar M.A., Hristov A.N., Hultquist N., Iñaki V., Jautzy J, Kim J.-H., Labidi J, Lalk E., Leavitt W., Li J., Lin L.-H., Liu J., Ojeda L., Ono S., Rhim J., Röckmann T., Sherwood Lollar B., Sivan M., Sun J., Ventura G.T., Wang D.T., Young E.D., Zhang N. and Arnold T.: Global inventory of doubly substituted isotopologues of methane (Δ13CH3D and Δ12CH2D2), ESSD., https://doi.org/10.5194/essd-2025-41, 2025, preprint.
Defratyka, S.; Fernandez, J.; Arnold, T.: Methane Clumped Isotopologues Database for POLYGRAM. NERC. EDS Centre for Environmental Data Analysis, doi:10.5285/f90fc5b05bb4450f87e89b5f86038346, 2025.
Studies of bulk isotopes of methane (δ13C-CH4 and δH2-CH4)
Defratyka, S. M.; France J. L.; Fisher R. E.; Lowry D.; Fernandez M. J.; Bakkaloglu S.; Yver-Kwok C.; Paris J.-D.; Bousquet P.; Arnold T.; Rennick C.; Helmore J.; Yarrow N.; Nisbet G. E.: Evaluation of Data Processing Strategies for Methane Isotopic Signatures Determined During Near-Source Measurements, Tellus B: Chemical and Physical Meteorology, 77(1), p. 1–17, https://doi.org/10.16993/tellusb.1878, 2025.
Menoud, M., van der Veen, C., Lowry, D., Fernandez, J.M., Bakkaloglu, S., France, J.L., Fisher, R.E., Maazallahi, H., Stanisavljević, M., Nęcki, J., Vinkovic, K., Łakomiec, P., Rinne, J., Korbeń, P., Schmidt, M., Defratyka, S., Yver-Kwok, C., Andersen, T., Chen, H., Röckmann, T.: New contributions of measurements in Europe to the global inventory of the stable isotopic composition of methane. Earth Syst. Sci. Data 14, 4365–4386, 2022. https://doi.org/10.5194/essd-14-4365-2022
Menoud, M., Veen, C. van der, Fernandez, J., Semra, B., Lowry, D., France, J., Fisher, R., Maazallahi, H., Korbeń, P., Schmidt, M., Stanisavljević, M., Necki, J., Łakomiec, P., Rinne, J., Defratyka, S., Yver-Kwok, C., Vinkovic, K., Andersen, T., Chen, H., Röckmann, T.: European Methane Isotope Database Coupled with a Global Inventory of Fossil and Non-Fossil δ13C- and δ2H-CH4 Source Signature Measurements: V2.0.0. Utrecht Univ. Data Set. 2022 https://doi.org/10.24416/UU01-YP43IN
Studies on methane emissions to the atmopshere
Vogel, F., Ars, S., Wunch, D., Lavoie, J., Gillespie, L., Maazallahi, H., Röckmann, T., Nęcki, J., Bartyzel, J., Jagoda, P., Lowry, D., France, J., Fernandez, J., Bakkaloglu, S., Fisher, R., Lanoiselle, M., Chen, H., Oudshoorn, M., Yver-Kwok, C., Defratyka, S., Morgui, J.A., Estruch, C., Curcoll, R., Grossi, C., Chen, J., Dietrich, F., Forstmaier, A., Denier van der Gon, H.A.C., Dellaert, S.N.C., Salo, J., Corbu, M., Iancu, S.S., Tudor, A.S., Scarlat, A.I., Calcan, A.: Ground-Based Mobile Measurements to Track Urban Methane Emissions from Natural Gas in 12 Cities across Eight Countries. Env. Sci Technol 58, 2271–2281. https://doi.org/10.1021/acs.est.3c03160, 2024.
Kumar, P., Caldow, C., Broquet, G., Shah, A., Laurent, O., Yver-Kwok, C., Ars, S., Defratyka, S., Gichuki, S. W., Lienhardt, L., Lozano, M., Paris, J.-D., Vogel, F., Bouchet, C., Allegrini, E., Kelly, R., Juery, C., and Ciais, P.: Detection and long-term quantification of methane emissions from an active landfill, Atmos. Meas. Tech., 17, 1229–1250, https://doi.org/10.5194/amt-17-1229-2024, 2024.
Luther, A., Kostinek, J., Kleinschek, R., Defratyka, S., Stanisavljevic, M., Forstmaier, A., Dandocsi, A., Scheidweiler, L., Dubravica D., Wildmann, N., Hase, F., Frey, M. M., Chen, J., Dietrich, F., Nȩcki, J., Swolkień, J., Knote, CH., Vardag, S. N., Roiger, A., and Butz, A.: Observational constraints on methane emissions from Polish coal mines using a ground-based remote sensing network, Atmos. Chem. Phys., 22, 5859–5876, 2022, https://doi.org/10.5194/acp-22-5859-2022
Defratyka, S. M., Paris, J. D., Yver-Kwok, C., Fernandez, J. M., Korbeń, P. and Bousquet, P.: Mapping urban methane sources in Paris, France, Env. Sci. Tech., 2021, https://doi.org/10.1021/acs.est.1c00859
Defratyka, S.M., Paris, J.-D., Yver-Kwok, C., Loeb, D., France, J., Helmore, J., Yarrow, N., Gros, V., Bousquet, P.: Ethane measurement by Picarro CRDS G2201-i in laboratory and field conditions: potential and limitations. Atmospheric Meas. Tech. 14, 5049–5069, 2021. https://doi.org/10.5194/amt-14-5049-2021
Luther, A., Kleinschek, R., Scheidweiler, L., Defratyka, S., Stanisavljevic, M., Forstmaier, A., Dandocsi, A., Wolff, S., Dubravica, D., Wildmann, N., Kostinek, J., Jöckel, P., Nickl, A.-L., Klausner, T., Hase, F., Frey, M., Chen, J., Dietrich, F., Nȩcki, J., Swolkień, J., Fix, A., Roiger, A., and Butz, A.: Quantifying CH4 emissions from hard coal mines using mobile sun-viewing Fourier transform spectrometry, Atmos. Meas. Tech., 12, 5217–5230, 2019. https://doi.org/10.5194/amt-12-5217-2019
