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 of the Total Carbon Column Observing Network using aircraft profile data by D. Wunch, G. C. Toon, P. O. Wennberg, S. C. Wofsy, B. B. Stephens, M. L. Fischer, O. Uchino, J. B. Abshire, P. Bernath, S. C. Biraud, J.-F. L. Blavier, C. Boone, K. P. Bowman, E. V. Browell, T. Campos, B. J. Connor, B. C. Daube, N. M. Deutscher, M. Diao, J. W. Elkins, C. Gerbig, E. Gottlieb, D. W. T. Griffith, D. F. Hurst, R. Jiménez, G. Keppel-Aleks, E. A. Kort, R. Macatangay, T. Machida, H. Matsueda, F. Moore, I. Morino, S. Park, J. Robinson, C. M. Roehl, Y. Sawa, V. Sherlock, C. Sweeney, T. Tanaka, M. A. Zondlo

“…The TCCON must therefore be calibrated to World Meteorological Organization (WMO) in situ trace gas measurement scales. We present a calibration of TCCON data using WMO-scale instrumentation aboard aircraft that measured profiles over four TCCON stations during 2008 and 2009. …”
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Total column CO₂ measurements at Darwin, Australia – site description and calibration against in situ aircraft profiles by S. C. Wofsy, D. M. Matross, A. V. Bright, B. C. Daube, R. Jiménez, N. T. Allen, J.-F. Blavier, Y. Yavin, D. Wunch, G. Keppel-Aleks, R. A. Washenfelder, G. C. Toon, P. O. Wennberg, G. W. Bryant, N. M. Deutscher, D. W. T. Griffith, S. Park

“…The 1% negative bias in the FTS <i>X</i>_CO₂ relative to the World Meteorological Organization (WMO) calibrated in situ scale is within the uncertainties of the NIR spectroscopy and analysis.…”
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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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