Martin Brook

The 2017 New Zealand Geotechnical Society paper by D. J. Bevan, Martin Brook, Jon Tunnicliffe, Nick Richards and W. M. Prebble provides a clear professional example. The team mapped the Kepa Road landslide in Auckland and the Ohuka landslide south of Port Waikato using a DJI Inspire 1 fitted with a Zenmuse X3 camera. Roughly 200 to 300 overlapping photographs were collected at each site. Up to 20 ground-control points, including targets and identifiable features, were positioned using real-time kinematic GPS.

A 2019 paper by Martin Brook and Jesse Merkle described UAV/SfM photogrammetry for monitoring active landslides in the Auckland region. High-resolution photomosaics and terrain models could be used to assess deformation and to compare surfaces through time or against LiDAR. A related University of Auckland project funded through EQC, later the Natural Hazards Commission, extended the work into ten monitoring investigations and reported in 2020.