On the consistency of methane retrievals using the Total Carbon Column Observing Network (TCCON) and multiple spectroscopic databases

Malina, Edward; Veihelmann, Ben; Buschmann, Matthias; Deutscher, Nicholas M.; Feist, Dietrich G.; Morino, Isamu

doi:https://doi.org/10.5194/amt-15-2377-2022

Articles | Volume 15, issue 8

https://doi.org/10.5194/amt-15-2377-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-15-2377-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 8

Research article

|

20 Apr 2022

Research article |

| 20 Apr 2022

On the consistency of methane retrievals using the Total Carbon Column Observing Network (TCCON) and multiple spectroscopic databases

Edward Malina, Ben Veihelmann, Matthias Buschmann, Nicholas M. Deutscher, Dietrich G. Feist, and Isamu Morino

Data sets

ESA SEOM-IAS - Spectroscopic parameters database 2.3 μm region M. Birk, G. Wagner, J. Loos, D. Mondelain, and A. Campargue https://doi.org/10.5281/zenodo.1009126

Model code and software

The HITRAN2016 Molecular Spectroscopic Database (https://hitran.org/) I. Gordon, L. Rothman, C. Hill, R. Kochanov, Y. Tan, P. Bernath, M. Birk, V. Boudon, A. Campargue, K. Chance, B. Drouin, J.-M. Flaud, R. Gamache, J. Hodges, D. Jacquemart, V. Perevalov, A. Perrin, K. Shine, M.-A. Smith, J. Tennyson, G. Toon, H. Tran, V. Tyuterev, A. Barbe, A. Császár, V. Devi, T. Furtenbacher, J. Harrison, J.-M. Hartmann, A. Jolly, T. Johnson, T. Karman, I. Kleiner, A. Kyuberis, J. Loos, O. Lyulin, S. Massie, S. Mikhailenko, N. Moazzen-Ahmadi, H. Mueller, O. Naumenko, A. Nikitin, O. Polyansky, M. Rey, M. Rotger, S. Sharpe, K. Sung, E. Starikova, S. Tashkun, J. V. Auwera, G. Wagner, J. Wilzewski, J. Wcisło, S. Yu, and E. Zak https://doi.org/10.1016/j.jqsrt.2017.06.038

The 2020 edition of the GEISA spectroscopic database (http://ara.abct.lmd.polytechnique.fr/index.php?page=geisa-2) T. Delahaye, R. Armante, N. Scott, N. Jacquinet-Husson, A. Chédin, L. Crépeau, C. Crevoisier, V. Douet, A. Perrin, A. Barbe, V. Boudon, A. Campargue, L. Coudert, V. Ebert, J.-M. Flaud, R. Gamache, D. Jacquemart, A. Jolly, F. Kwavia Tchana, A. Kyuberis, G. Li, O. Lyulin, L. Manceron, S. Mikhailenko, N. Moazzen-Ahmadi, H. Mueller, O. Naumenko, A. Nikitin, V. Perevalov, C. Richard, E. Starikova, S. Tashkun, V. Tyuterev, J. Vander Auwera, B. Vispoel, A. Yachmenev, and S. Yurchenko https://doi.org/10.1016/j.jms.2021.111510

Short summary

Methane retrievals from remote sensing instruments are fundamentally based on spectroscopic parameters, which indicate spectral-line positions, and their characteristics. These parameters are stored in several databases that vary in their make-up. Here we assess how concentrations of methane isotopologues measured from the same Total Carbon Column Observing Network (TCCON) instruments vary across a range of spectral windows using different spectroscopic databases and comment on the implications.