It is essential to have accurate bathymetry (below water) and topography (above water) data at the start of any nearshore field campaign. Therefore, I asked Shore Monitoring & Research to survey a 2-km stretch of coast in which we will carry out the AEOLEX-II campaign. This Wednesday Shore-staff used their jet-ski, quad and survey wheel to collect the data in the subtidal and intertidal zone. If all goes according to plan, Shore will deploy their UAV-LiDAR to measure the topography of the foredune next Saturday. This UAV-LiDAR is a first for us. I am extremely keen to see its performance, especially whether the LiDAR is capable of seeing the sand surface beneath the dense vegetation cover on and landward of the foredune. Later next week FGLab staff will deploy their mobile terrestrial laser scanner (4WD with a RIEGL VZ-400 attached to an inertial navigation system with RTK-GPS, INS-GPS) in the same area. This will make for an excellent inter-comparison of surveying techniques.
AuthorGerben Ruessink is Professor of Coastal Morphodynamics at Utrecht University Archives
November 2017
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