Facts and Figures
Facts & Figures
Leaf area index
click on the Facts & Figures to find out how we measured and recorded them
Tree Height: 23.9mTree height was calculated using trigonometry from measurements taken using a hypsometer - a type of clinometer.
In the photo below you can see Ian, a scientist from Forest Research, using the hypsometer.
If you look carefully at the screen of the hypsometer you can see the distance to the tree (D) is 36.3m, and there are three different readings for height (A).
The hypsometer has already worked this out because an internal sensor calculated what angle (a) was.
Ian knew that height (B) was 1.3m (because he could easily measure this).
So the total tree height was A (22.6m) + B (1.3m) = 23.9m.