Articles | Volume 8, issue 3
Model description paper
25 Mar 2015
Model description paper |  | 25 Mar 2015

A global carbon assimilation system using a modified ensemble Kalman filter

S. Zhang, X. Zheng, J. M. Chen, Z. Chen, B. Dan, X. Yi, L. Wang, and G. Wu


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by S. Zhang on behalf of the Authors (06 Feb 2015)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (13 Feb 2015) by James Annan
ED: Publish subject to technical corrections (26 Feb 2015) by James Annan
AR by S. Zhang on behalf of the Authors (06 Mar 2015)  Author's response    Manuscript
Short summary
A Global Carbon Assimilation System based on the Ensemble Kalman filter (GCAS-EK) is developed for assimilating atmospheric CO2 data into an ecosystem model to simultaneously estimate the surface carbon fluxes and atmospheric CO2 distribution. This assimilation approach is similar to CarbonTracker, but with several new developments. The results showed that this assimilation approach can effectively reduce the biases and uncertainties of the carbon fluxes simulated by the ecosystem model.