Achieving accuracy requirements for forest biomass mapping: A spaceborne data fusion method for estimating forest biomass and LiDAR sampling error

► We used a data fusion approach to map above ground biomass with spaceborne data. ► We estimated forest biomass and LiDAR sampling error at a range of scales. ► Forest patches refined coarser level biomass reporting. ► Data fusion improved LiDAR-derived biomass and reduced sampling errors. ► Gridded biomass estimates met spaceborne biomass map accuracy requirements.