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Global CO2 fluxes inferred from surface air-sample measurements and from TCCON retrievals of the CO2 total column
Título : Global CO2 fluxes inferred from surface air-sample measurements and from TCCON retrievals of the CO2 total column
Autor : Chevallier, F.; Deutscher, Nicholas Michael; Conway, T. J.; Ciais, Philippe; Ciattaglia, L.; Dohe, Susanne; Fröhlich, M.; Gómez Peláez, Ángel Jesús; Griffith, David W. T.; Hase, Frank; Haszpra, L.; Krummel, Paul B.; Kyrö, Esko; Labuschagne, C.; Langenfelds, Ray L.; Machida, T.; Maignan, F.; Matsueda, H.; Morino, Isamu; Notholt, Justus; Ramonet, M.; Sawa, Y.; Schmidt, M.; Sherlock, Vanessa; Steele, Paul; Strong, Kimberly; Sussmann, Ralf; Wennberg, Paul O.; Wofsy, S.; Worthy, Douglas E.; Wunch, Debra; Zimnoch, M.
Palabras clave : Total Carbon Column Observing Network; CO2 surface fluxes; Flux inversion; Ciclo del carbono; Teledetección
Fecha de publicación : 2011
Editor: American Geophysical Union
Citación : Geophysical Research Letters. 2011, 38(24), p. L24810
Versión del editor: https://dx.doi.org/10.1029/2011GL049899
Resumen : We present the first estimate of the global distribution of CO2surface fluxes from 14 stations of the Total Carbon Column Observing Network (TCCON). The evaluation of this inversion is based on 1) comparison with the fluxes from a classical inversion of surface air-sample-measurements, and 2) comparison of CO2mixing ratios calculated from the inverted fluxes with independent aircraft measurements made during the two years analyzed here, 2009 and 2010. The former test shows similar seasonal cycles in the northern hemisphere and consistent regional carbon budgets between inversions from the two datasets, even though the TCCON inversion appears to be less precise than the classical inversion. The latter test confirms that the TCCON inversion has improved the quality (i.e., reduced the uncertainty) of the surface fluxes compared to the assumed or prior fluxes. The consistency between the surface-air-sample-based and the TCCON-based inversions despite remaining flaws in transport models opens the possibility of increased accuracy and robustness of flux inversions based on the combination of both data sources and confirms the usefulness of space-borne monitoring of the CO2 column.
Patrocinador: It was co-funded by the European Commission under the EU Seventh Research Framework Programme (grants agreements 218793, MACC, and 212196, COCOS)
URI : http://hdl.handle.net/20.500.11765/427
ISSN : 0094-8276
1944-8007
Colecciones: Artículos científicos 2010-2014


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