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Fig. 4


Maps of the CO2 line depth in January and October 2012. Left: CO2 transition at 1350.4 cm-1, January 2012. In this figure, already shown in Encrenaz et al. (2012a), the north-south axis has been corrected. Middle: CO2 transition at 1345.22 cm-1, October 2012. Right: CO2 transition at 529.73 cm-1, October 2012.

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