A 1-km June-September monthly aboveground net primary productivity dataset for northern China's grasslands from 2002 to 2020

This dataset contains 1-km June-September monthly aboveground net primary productivity (ANPP) raster maps for stable grasslands in northern China from 2002 to 2020. The dataset includes target-month ANPP layers for June, July, August, and September, with files organized by year and named as ANPP-YYYY-MM.tif. The June 2002 layer is not included because the corresponding phenology-related inputs were incomplete at the beginning of the phenology record used in this study. The ANPP rasters are provided in GeoTIFF format with units of g m^-2 yr^-1. The dataset also includes a stable grassland mask, a grassland occurrence frequency raster, multi-year mean ANPP, linear trend slope, file-level inventory, metadata, missing-file information, and a script for generating the stable grassland mask. The monthly layers are target-month ANPP maps generated from month-specific remote-sensing inputs and lagged climate sequences. They should not be interpreted as cumulative monthly productivity or monthly biomass production. Pixels outside the stable grassland extent are assigned as NoData.