Fig. 14

a Histogram of estimated national forest AGB calibrated with all LiDAR-AGB pixels; b histogram of estimated national forest AGB calibrated with LiDAR-AGB pixels with uncertainties < 50%; c histogram of uncertainties in AGB map calibrated with all LiDAR-AGB pixels; d histogram of uncertainties in AGB map calibrated with LiDAR-AGB pixels with uncertainties < 50%