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Calibration of the Total Carbon Column Observing Network using aircraft profile data

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posted on 2024-11-14, 16:21 authored by Debra Wunch, G C Toon, Paul O Wennberg, Steven C Wofsy, Robert S Stephens, M KR Fischer, O Uchino, J Abshire, P Bernath, S C Biraud, J-F Blavier, C Boone, K P Bowman, E V Browell, T Campos, B Connor, Bruce C Daube, Nicholas DeutscherNicholas Deutscher, M Diao, J W Elkins, Christoph Gerbig, E Gottlieb, David GriffithDavid Griffith, D F Hurst, Rodrigo Jimenez, Gretchen Keppel-Aleks, E A Kort, Ronald Macatangay, T Machidda, 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 Total Carbon Column Observing Network (TCCON) produces precise measurements of the column average dry-air mole fractions of CO2, CO, CH4, N2O and H2O at a variety of sites worldwide. These observations rely on spectroscopic parameters that are not known with sufficient accuracy to compute total columns that can be used in combination with in situ measurements. The TCCON must therefore be calibrated to World Meteorological Orga-nization (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. These calibrations are compared with similar observations made in 2004 and 2006. The results indicate that a single, global calibration factor for each gas accurately captures the TCCON total column data within error.

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Citation

Wunch, D., Toon, G., Wennberg, P. O., Wofsy, S. C., Stephens, R. S., Fischer, M. K.R.., Uchino, O., Abshire, J., Bernath, P., Biraud, S., Blavier, J., Boone, C., Bowman, K. P., Browell, E. V., Campos, T., Connor, B., Daube, B. C., Deutscher, N. M., Diao, M., Elkins, J. W., Gerbig, C., Gottlieb, E., Griffith, D. W., Hurst, D. F., Jimenez, R., Keppel-Aleks, G., Kort, E. A., Macatangay, R., Machidda, T., Matsueda, H., Moore, F., Morino, I., Park, S., Robinson, J., Roehl, C. M., Sawa, Y., Sherlock, V., Sweeney, C., Tanaka, T. & Zondlo, M. A. (2010). Calibration of the Total Carbon Column Observing Network using aircraft profile data. Atmospheric Measurement Techniques, 3 (5), 1351-1362.

Journal title

Atmospheric Measurement Techniques

Volume

3

Issue

5

Pagination

1351-1362

Language

English

RIS ID

36515

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