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Calibration of TCCON column-averaged CO2: the first aircraft campaign over European TCCON sites

Journal Article


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Abstract


  • The Total Carbon Column Observing Network (TCCON) is a ground-based network of Fourier Transform Spectrometer (FTS) sites around the globe, where the column abundances of CO2, CH4, N2O, CO and O2 are measured. CO2 is constrained with a precision better than 0.25% (1-σ). To achieve a similarly high accuracy, calibration to World Meteorological Organization (WMO) standards is required. This paper introduces the first aircraft calibration campaign of five European TCCON sites and a mobile FTS instrument. A series of WMO standards in-situ profiles were obtained over European TCCON sites via aircraft and compared with retrievals of CO 2 column amounts from the TCCON instruments. The results of the campaign show that the FTS measurements are consistently biased 1.1% ± 0.2% low with respect to WMO standards, in agreement with previous TCCON calibration campaigns. The standard a priori profile for the TCCON FTS retrievals is shown to not add a bias. The same calibration factor is generated using aircraft profiles as a priori and with the TCCON standard a priori. With a calibration to WMO standards, the highly precise TCCON CO2 measurements of total column concentrations provide a suitable database for the calibration and validation of nadir-viewing satellites. © Author(s) 2011.

UOW Authors


  •   Messerschmidt, Janina (external author)
  •   Geibel, M C. (external author)
  •   Blumenstock, Thomas (external author)
  •   Chen, H (external author)
  •   Deutscher, Nicholas
  •   Engel, A (external author)
  •   Feist, D G. (external author)
  •   Gerbig, C (external author)
  •   Gisi, M (external author)
  •   Hase, Frank (external author)
  •   Katrynski, K (external author)
  •   Kolle, O (external author)
  •   Lavric, J V. (external author)
  •   Notholt, Justus (external author)
  •   Palm, M (external author)
  •   Ramonet, M (external author)
  •   Rettinger, Markus (external author)
  •   Schmidt, M (external author)
  •   Sussmann, Ralf (external author)
  •   Toon, Geoffrey C. (external author)
  •   Truong, F (external author)
  •   Warneke, Thorsten (external author)
  •   Wennberg, Paul O. (external author)
  •   Wunch, Debra (external author)
  •   Xueref-Remy, I (external author)

Publication Date


  • 2011

Citation


  • Messerschmidt, J., Geibel, M. C., Blumenstock, T., Chen, H., Deutscher, N. M., Engel, A., Feist, D. G., Gerbig, C., Gisi, M., Hase, F., Katrynski, K., Kolle, O., Lavric, J. V., Notholt, J., Palm, M., Ramonet, M., Rettinger, M., Schmidt, M., Sussmann, R., Toon, G. C., Truong, F., Warneke, T., Wennberg, P. O., Wunch, D. & Xueref-Remy, I. (2011). Calibration of TCCON column-averaged CO2: the first aircraft campaign over European TCCON sites. Atmospheric Chemistry and Physics, 11 (21), 10765-10777.

Scopus Eid


  • 2-s2.0-80155142255

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=8619&context=scipapers

Ro Metadata Url


  • http://ro.uow.edu.au/scipapers/5276

Has Global Citation Frequency


Number Of Pages


  • 12

Start Page


  • 10765

End Page


  • 10777

Volume


  • 11

Issue


  • 21

Abstract


  • The Total Carbon Column Observing Network (TCCON) is a ground-based network of Fourier Transform Spectrometer (FTS) sites around the globe, where the column abundances of CO2, CH4, N2O, CO and O2 are measured. CO2 is constrained with a precision better than 0.25% (1-σ). To achieve a similarly high accuracy, calibration to World Meteorological Organization (WMO) standards is required. This paper introduces the first aircraft calibration campaign of five European TCCON sites and a mobile FTS instrument. A series of WMO standards in-situ profiles were obtained over European TCCON sites via aircraft and compared with retrievals of CO 2 column amounts from the TCCON instruments. The results of the campaign show that the FTS measurements are consistently biased 1.1% ± 0.2% low with respect to WMO standards, in agreement with previous TCCON calibration campaigns. The standard a priori profile for the TCCON FTS retrievals is shown to not add a bias. The same calibration factor is generated using aircraft profiles as a priori and with the TCCON standard a priori. With a calibration to WMO standards, the highly precise TCCON CO2 measurements of total column concentrations provide a suitable database for the calibration and validation of nadir-viewing satellites. © Author(s) 2011.

UOW Authors


  •   Messerschmidt, Janina (external author)
  •   Geibel, M C. (external author)
  •   Blumenstock, Thomas (external author)
  •   Chen, H (external author)
  •   Deutscher, Nicholas
  •   Engel, A (external author)
  •   Feist, D G. (external author)
  •   Gerbig, C (external author)
  •   Gisi, M (external author)
  •   Hase, Frank (external author)
  •   Katrynski, K (external author)
  •   Kolle, O (external author)
  •   Lavric, J V. (external author)
  •   Notholt, Justus (external author)
  •   Palm, M (external author)
  •   Ramonet, M (external author)
  •   Rettinger, Markus (external author)
  •   Schmidt, M (external author)
  •   Sussmann, Ralf (external author)
  •   Toon, Geoffrey C. (external author)
  •   Truong, F (external author)
  •   Warneke, Thorsten (external author)
  •   Wennberg, Paul O. (external author)
  •   Wunch, Debra (external author)
  •   Xueref-Remy, I (external author)

Publication Date


  • 2011

Citation


  • Messerschmidt, J., Geibel, M. C., Blumenstock, T., Chen, H., Deutscher, N. M., Engel, A., Feist, D. G., Gerbig, C., Gisi, M., Hase, F., Katrynski, K., Kolle, O., Lavric, J. V., Notholt, J., Palm, M., Ramonet, M., Rettinger, M., Schmidt, M., Sussmann, R., Toon, G. C., Truong, F., Warneke, T., Wennberg, P. O., Wunch, D. & Xueref-Remy, I. (2011). Calibration of TCCON column-averaged CO2: the first aircraft campaign over European TCCON sites. Atmospheric Chemistry and Physics, 11 (21), 10765-10777.

Scopus Eid


  • 2-s2.0-80155142255

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=8619&context=scipapers

Ro Metadata Url


  • http://ro.uow.edu.au/scipapers/5276

Has Global Citation Frequency


Number Of Pages


  • 12

Start Page


  • 10765

End Page


  • 10777

Volume


  • 11

Issue


  • 21