Articles | Volume 14, issue 23
Atmos. Chem. Phys., 14, 12897–12914, 2014
https://doi.org/10.5194/acp-14-12897-2014
Atmos. Chem. Phys., 14, 12897–12914, 2014
https://doi.org/10.5194/acp-14-12897-2014

Research article 08 Dec 2014

Research article | 08 Dec 2014

A regional CO2 observing system simulation experiment for the ASCENDS satellite mission

J. S. Wang et al.

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Cited articles

Baker, D. F., Bösch, H., Doney, S. C., O'Brien, D., and Schimel, D. S.: Carbon source/sink information provided by column CO2 measurements from the Orbiting Carbon Observatory, Atmos. Chem. Phys., 10, 4145–4165, https://doi.org/10.5194/acp-10-4145-2010, 2010.
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Brioude, J., Kim, S.-W., Angevine, W. M., Frost, G. J., Lee, S-H, McKeen, S. A., Trainer, M., Fehsenfeld, F. C., Holloway, J. S., Ryerson, T. B., Williams, E. J., Petron, G., and Fast, J. D.: Top–down estimate of anthropogenic emission inventories and interannual variability in Houston using a mesoscale inverse modeling technique, J. Geophys. Res., 116, D20305, https://doi.org/10.1029/2011JD016215, 2011.
Brioude, J., Petron, G., Frost, G. J., Ahmadov, R., Angevine, W. M., Hsie, E.-Y., Kim, S.-W., Lee, S.-H., McKeen, S. A., Trainer, M., Fehsenfeld, F. C., Holloway, J. S., Peischl, J., Ryerson, T. B., and Gurney, K. R.: A new inversion method to calculate emission inventories without a prior at mesoscale: Application to the anthropogenic CO2 emission from Houston, Texas, J. Geophys. Res., 117, D05312, https://doi.org/10.1029/2011JD016918, 2012.
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Our simulations suggest that CO2 measurements by the planned ASCENDS satellite could improve estimates of emissions and uptake by up to 50% at the weekly 1° by 1° scale, 40-75% at the annual biome scale, and 65-85% for the whole of North America. The results depend on the laser wavelength used and the assumed precision of the measurements. The resulting biome flux uncertainties, 0.01-0.06 billion tons of C per year, would satisfy one definition of mission success.
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