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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Using portable low-resolution spectrometers to evaluate Total Carbon Column Observing Network (TCCON) biases in North America by N. Mostafavi Pak, N. Mostafavi Pak, N. Mostafavi Pak, J. K. Hedelius, J. K. Hedelius, S. Roche, S. Roche, L. Cunningham, B. Baier, B. Baier, C. Sweeney, C. Roehl, J. Laughner, G. Toon, P. Wennberg, H. Parker, C. Arrowsmith, J. Mendonca, J. Mendonca, P. Fogal, T. Wizenberg, B. Herrera, B. Herrera, K. Strong, K. A. Walker, F. Vogel, D. Wunch

“…We developed new EM27/SUN data products using both previous and current versions of the retrieval algorithm (GGG2014 and GGG2020) and used coincident AirCore measurements to tie the gas retrievals to the World Meteorological Organization (WMO) trace gas standard scales. We also derived air-mass-dependent correction factors for the EM27/SUN devices. …”
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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 %. …”
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