Comparison of precision of biomass estimates in regional field sample surveys and airborne LiDAR-assisted surveys in Hedmark County, Norway

► Uncertainty of a regional LiDAR-assisted sample survey for biomass is assessed. ► Uncertainty of LiDAR-assisted designs are compared against pure field-based designs. ► Model-assisted two-phase and two-stage uncertainty estimates are provided. ► LiDAR-assisted designs provide reduction in standard errors of 40-60%.