The Wind-Reaction-Measurement with PiCUS TMS is used for in depth tree inspections to obtain information about a tree’s stability, defined by its root anchoring force in the ground.

Features:

• Confirmation of stability:If trees only show a small root plate tilt, even in strong wind gusts, one can assume a stable root system.
• Identification of trees with root anchorage problems:After measuring tree groups comparing the results can identify trees with conspicuously large root plate tilt.
• Combination with static tree pulling test (TreeQinetic) with regards to stability:If a tree with increased tilt angles has been identified, it is often meaningful to follow up with a static pulling test to measure the trees reaction to a known force.
• Addition to sonic tomography (PiCUS Sonic Tomograph) and resistance tomography (TreeTronic3):Trees with large defects in the lower stem area (with assumed root defects) should additionally have their stability tested in natural wind
• Surveillance of trees near construction:Sustained changes in a tree’s tilt angle during groundworks (e.g. placing of sheet pile walls) can be detected with the PiCUS TMS.
• Long term monitoring of trees:Trees suspected of having root anchorage problems can be inspected in regular intervals to check whether:
• The root plate tilt in wind decreases (tree grows new and stronger roots)
• The root plate tilt in wind increases (roots are dying off or get damaged otherwise)
• The reaction remains constant