The Campus Tree Radar Unit (TRUTM)
How the TRUTM
works: An air-filled trunk (hollow), or partially air-filled incipient decay
zone, are excellent reflectors for detection by ground penetrating radar (GPR)
systems. Data are taken on and around a tree trunk at several uniformly spaced
above-ground heights to give a comprehensive view of internal structure.
Root systems scans and mapping
Electromagnetic differences between tree roots and the
surrounding soil provide the necessary contrast and reflection properties that
are detected by GPR. Concentric circular scans around trees provide enough
detail of root systems to map specific root locations as well as determine
overall distribution and root system integrity, which is important for tree
stability and health.
Figure courtesy of TreeRadar, Inc.