Figure 2
From: New 3D measurements of large redwood trees for biomass and structure

Tree 6 from site CAL-02 (described below): (left) side elevation; (right) cross section through point cloud at location of dotted line in the (left) panel i.e. 1.2–1.4m. The grid shows an alpha shape fit to the TLS cross-section (described below), with the resulting RMSE of fit; and fDBH, the so-called functional DBH, defined as the DBH of a circle of equivalent area to the estimated non-circular trunk cross-sectional area.