Extended Data Fig. 5: A priori and a posteriori monthly biosphere CO2 fluxes over China inferred from the GOSAT CO2 column data and in situ data from 2010 to 2016.
From: Large Chinese land carbon sink estimated from atmospheric carbon dioxide data

We also report a posteriori fluxes inferred from OCO-2 CO2 column from September 2014 to December 2016. Vertical bars and shaded envelopes denote a posteriori uncertainties. Higher annual fluxes inferred from GOSAT and OCO-2 are due mainly to higher a posteriori fluxes during winter months when data coverage is sparse (Extended Data Fig. 4) and the fluxes are more influenced by a priori values.