The land carbon sink in China over 2015-2022 constrained by OCO2 XCO2 retrievals with a regional atmospheric inversion system GONGGA-CN

Here we provide a regional monthly CO2 flux dataset at 0.5° × 0.5° spatial resolution for the period 2015-2022. The dataset is generated using the GONGGA-CN (Global ObservatioN-based system for monitoring Greenhouse GAs-China) inversion system by assimilating OCO-2 (Observing Carbon Observatory 2) v11.2r column CO2 retrievals that scaled to the WMO X2019 standard. The dataset contains fluxes from biosphere (Net Ecosystem Exchange, NEE) (both prior and posterior), ocean (both prior and posterior), biomass burning emissions and fossil fuel emissions.