Calibration of TCCON column-averaged CO₂: the first aircraft campaign over European TCCON sites by G. C. Toon, F. Truong, R. Sussmann, M. Schmidt, M. Rettinger, M. Ramonet, M. Palm, J. Notholt, J. V. Lavrič, O. Kolle, K. Katrynski, F. Hase, M. Gisi, C. Gerbig, D. G. Feist, A. Engel, N. M. Deutscher, H. Chen, T. Blumenstock, M. C. Geibel, J. Messerschmidt, T. Warneke, P. O. Wennberg, D. Wunch, I. Xueref-Remy

“…A series of WMO standards in-situ profiles were obtained over European TCCON sites via aircraft and compared with retrievals of CO₂ column amounts from the TCCON instruments. …”
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Calibration and instrumental line shape characterization of a set of portable FTIR spectrometers for detecting greenhouse gas emissions by M. Frey, F. Hase, T. Blumenstock, J. Groß, M. Kiel, G. Mengistu Tsidu, K. Schäfer, M. K. Sha, J. Orphal

“…As a final calibration step, using a co-located TCCON (Total Carbon Column Observation Network) spectrometer as a reference, a common scaling factor has been derived for the XCO₂ and XCH₄ products, which ensures that the records are traceable to the WMO in situ scale.…”
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Intercomparison of low- and high-resolution infrared spectrometers for ground-based solar remote sensing measurements of total column concentrations of CO₂, CH<sub>4</su... by M. K. Sha, M. De Mazière, J. Notholt, T. Blumenstock, H. Chen, A. Dehn, D. W. T. Griffith, F. Hase, P. Heikkinen, C. Hermans, A. Hoffmann, M. Huebner, N. Jones, R. Kivi, B. Langerock, C. Petri, F. Scolas, Q. Tu, D. Weidmann

“…They provide in situ vertical profiles of the target gas concentrations as auxiliary reference data for the column retrievals, which are traceable to the WMO SI<span id="page4792"/> standards. The reference measurements performed with the Bruker IFS 125HR were found to be affected by non-linearity of the indium gallium arsenide (InGaAs) detector. …”
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Evaluation of MOPITT Version 7 joint TIR–NIR X_CO retrievals with TCCON by J. K. Hedelius, T.-L. He, D. B. A. Jones, B. C. Baier, B. C. Baier, R. R. Buchholz, M. De Mazière, N. M. Deutscher, M. K. Dubey, D. G. Feist, D. G. Feist, D. G. Feist, D. W. T. Griffith, F. Hase, L. T. Iraci, P. Jeseck, M. Kiel, M. Kiel, R. Kivi, C. Liu, I. Morino, J. Notholt, Y.-S. Oh, H. Ohyama, D. F. Pollard, M. Rettinger, S. Roche, C. M. Roehl, M. Schneider, K. Shiomi, K. Strong, R. Sussmann, C. Sweeney, C. Sweeney, Y. Té, O. Uchino, V. A. Velazco, V. A. Velazco, W. Wang, T. Warneke, P. O. Wennberg, P. O. Wennberg, H. M. Worden, D. Wunch

“…When using TCCON spectrometric column retrievals without the standard airmass correction or scaling to aircraft (WMO scale), the ground- and satellite-based observations overall agree to better than 0.5&thinsp;%. …”
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