Fig. 7From: Discovering forest height changes based on spaceborne lidar data of ICESat-1 in 2005 and ICESat-2 in 2019: a case study in the Beijing-Tianjin-Hebei region of ChinaForest canopy heights derived from filtered ICESat-2 points (a), changes of forest canopy height between 2005 and 2019 (b), and height changes of ‘0 m’ pixels (c)Back to article page