Fig. 5

Diagram of the comparison methodology (the distance between the track lines of ATL08 products was shortened for improved interpretation). Strong beams were selected and filtered from the original ATL08 products, and geographically matched with the map. The change of canopy height was derived from the pixel value and the maximum of ATL08 points in one pixel. Protected natural forests are regarded as unchanging areas. Areas where change can be expected are divided into three patterns