A four-epoch monthly dataset of terrestrial carbon fluxes for China

This dataset presents monthly gridded terrestrial carbon fluxes for China, derived from the process-based WRF-VPRM model. The model was calibrated against multi-site eddy covariance observations to reduce systematic biases in gross ecosystem exchange (GEE) and ecosystem respiration (RES) simulations. The dataset includes four NetCDF files corresponding to the study years: 2005.nc, 2010.nc, 2015.nc, and 2021.nc. Each file contains: 1D metadata: geographic grid coordinates (latitude/longitude) and monthly index (1–12). 2D spatial variables at 20 km resolution, available for each month of the year: GEE: gross ecosystem exchange (carbon uptake is negative) RES: ecosystem respiration (carbon release is positive) NEP: net ecosystem production (NEP = - (GEE + RES)) LU_INDEX: model-based land-use classification本数据集提供中国区域逐月网格化陆地碳通量数据，基于过程驱动的WRF-VPRM模型（WRF-VPRM）构建。该模型依托多站点涡度协方差观测数据进行校准，以降低总生态系统交换量（Gross Ecosystem Exchange, GEE）与生态系统呼吸量（Ecosystem Respiration, RES）模拟中的系统偏差。 本数据集包含对应研究年份的4个NetCDF格式文件，分别为2005.nc、2010.nc、2015.nc与2021.nc。每个文件包含以下内容： 一维元数据：地理网格坐标（纬度/经度）以及月份索引（1至12）。 分辨率为20 km的二维空间变量，覆盖全年各月份： - GEE：总生态系统交换量（Gross Ecosystem Exchange, GEE），碳吸收为负值 - RES：生态系统呼吸量（Ecosystem Respiration, RES），碳排放为正值 - NEP：净生态系统生产量（Net Ecosystem Production, NEP），计算公式为NEP = -(GEE + RES) - LU_INDEX：基于模型的土地利用分类数据