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Accuracy verification of Airborne Laser Bathymetry in the surf zone
| Publication year | Port and Airport Research Institute Technical Note 1346 2018.06 |
|---|---|
| Author(s) | Satoshi NAKAMURA,Masayuki BANNO,Taichi KOSAKO,Shin-ichi YANAGISHIMA,Hideto YASUDA |
| Department /Divison |
Coastal and Estuarine Environment Field Coastal and Estuarine Sediment Dynamics Group |
| Executive Summary | The Airborne Laser Bathymetry (ALB) and the topographic survey along the observation pier of the Hazaki Oceanographical Research Station (HORS) were done. At the same time, the transparency and depth distribution of the photon and the turbidity were observed. State of ALB, verification of measurement accuracy and limit depth of the sea-bottom according to the water quality were examined. It is not possible to measure the sea-bottom in the area where a lot of white bubbles are caused by the wave breaking. The shape of the scour around the steel pile is measured accurately. The accuracy of ALB is 0.13m in average along the HORS pier. If misidentification of the sea-bottom caused by transparency and turbidity in the sea is appropriately removed, the depth can be measured up to about twice of the transparency. |
| PDF File | /en/pdf/en/1346.pdf |
