We have received some stunning images of the canopy of the OneOak tree. These were taken when Forest Research scientists visited the tree last week to measure it.
Using a fisheye lens fitted to a digital camera, they took hemispherical images looking up into the tree canopy. This produced a complete circular image taking in 180 degrees field of view.
The picture here is one of many taken by the scientists. Back in their laboratory they joined these all together to form a complete picture of the canopy from all angles. They then used special software that calculated the proportions of light and leaves. This gives us the Leaf Area Index.
The Leaf Area Index is used to calculate the biomass of the tree. Read more here.