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

Messerschmidt, J., Geibel, M., Blumenstock, T., Chen, H., Deutscher, N. M., Engel, A., et al. (2011). Calibration of TCCON column-averaged CO2: the first aircraft campaign over European TCCON sites. Atmospheric Chemistry and Physics, 11, 10765-10777. doi:10.5194/acp-11-10765-2011.

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http://dx.doi.org/10.5194/acp-11-10765-2011 (Publisher version)
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Messerschmidt, J., Author
Geibel, Marc1, Author           
Blumenstock, T., Author
Chen, H., Author
Deutscher, N. M., Author
Engel, A., Author
Feist, Dietrich G.2, Author           
Gerbig, Christoph3, Author           
Gisi, M., Author
Hase, F., Author
Katrynski, K., Author
Kolle, Olaf4, Author           
Lavrič, J. V.5, Author           
Notholt, J., Author
Palm, M., Author
Ramonet, M., Author
Rettinger, M., Author
Schmidt, M., Author
Sussmann, R., Author
Toon, G. C., Author
Truong, F., AuthorWarneke, T., AuthorWennberg, P. O., AuthorWunch, D., AuthorXueref-Remy, I., Author more..
Affiliations:
1Department Biogeochemical Systems, Prof. M. Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497755              
2Atmospheric Remote Sensing Group, Dr. D. Feist, Department Biogeochemical Systems, Prof. M. Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497783              
3Airborne Trace Gas Measurements and Mesoscale Modelling, Dr. habil. C. Gerbig, Department Biogeochemical Systems, Prof. M. Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497784              
4Service Facility Field Measurements & Instrumentation, O. Kolle, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497769              
5Tall Tower Atmospheric Gas Measurements, Dr. J. Lavrič, Department Biogeochemical Systems, Prof. M. Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497786              

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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 CO2 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.

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 Dates: 2011-10-132011-11-022011
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: Other: BGC2179
DOI: 10.5194/acp-11-10765-2011
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Title: Atmospheric Chemistry and Physics
Source Genre: Journal
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Publ. Info: Katlenburg-Lindau, Germany : European Geosciences Union
Pages: - Volume / Issue: 11 Sequence Number: - Start / End Page: 10765 - 10777 Identifier: ISSN: 1680-7316
CoNE: https://pure.mpg.de/cone/journals/resource/111030403014016