Articles | Volume 14, issue 23
Atmos. Chem. Phys., 14, 13281–13293, 2014
https://doi.org/10.5194/acp-14-13281-2014

Special issue: 9th International Carbon Dioxide Conference (ICDC9) (ESD/ACP/AMT/BG...

Atmos. Chem. Phys., 14, 13281–13293, 2014
https://doi.org/10.5194/acp-14-13281-2014

Research article 12 Dec 2014

Research article | 12 Dec 2014

A joint data assimilation system (Tan-Tracker) to simultaneously estimate surface CO2 fluxes and 3-D atmospheric CO2 concentrations from observations

X. Tian et al.

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Short summary
A new carbon cycle data assimilation system (Tan-Tracker) is developed based on an advanced hybrid assimilation approach, as a part of the preparation for the launch of the Chinese carbon dioxide observation satellite (TanSat). Tan-Tracker adopts a joint data assimilation framework to simultaneously estimate CO2 concentrations and CFs and thus gradually reduce the uncertainty in the CO2 concentration evolution through continuously fitting model CO2 concentration simulations to the observations.
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