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Constraining global carbon budget using vertically-integrated CO2 measurements

I demonstrate that high precision measurements of the vertical-average dry volumn-mixing-ratio of atmospheric carbon dioxide (CO2 ) can be obtained from ground-based solar spectra. Oxygen measurements from the same spectra can be used to calibrate CO2 retrievals across different instruments, enabling a global network of column CO2 observations to be constructed. I also illustrate that this new type of data, together with aircraft pro?le CO2 observations, provide new constraints on global carbon ?uxes.

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Constraining global carbon budget using vertically-integrated CO2 measurements