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Last weeks storms confirmed results of tree assessments based on wind-tipping-curves and static pulling tests.

Beech failed in storm.

Measurements of basal inclination had identified 2 out of 9 trees as at a risk of failure. In the following figure published in 2019 these two trees are easily recognized:

Wind tipping data of 9 beech trees.

Both conspicuous trees have failed last week. Wind tipping data had been collected for several years.

Inclination sensor at the base of an old beech.

Further reading

Poster at ISA Annual Conference

Publication in Arboriculture & Urban Forestry

Steffen Rust Avatar Steffen Rust Baumbiologie, Baumkontrolle, Baumpflege.