Facts and Figures

Facts & Figures

Tree height
23.9m
Age
222 years
Stem diameter
89.8cm
Crown diameter
17.8m
Timber height
12.9m
Timber volume
4.96m3
Leaf area index
1.7
Tree weight
14.385 tonnes
Tree volume
11.58 m3
Dry mass
7.86 tonnes
Carbon content
3.93 tonnes
click on the Facts & Figures to find out how we measured and recorded them

Tree Height: 23.9m

Tree 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.

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