When: 4:00pm - 6:00pm, October 27, 2016
Where: T-Room, 1360 Barrington Street, Halifax
“Applications of topo-bathymetric lidar in the coastal zone”
Previous airborne bathymetric lidar sensors were large and expensive and concentrated on mapping as deep as possible using a combination of near-infrared and green lasers. This talk will present the Chiroptera II, a new shallow water topo-bathymetric lidar sensor owned by the NSCC that is designed to collect seamless elevation data from land to the submerged terrain under coastal or freshwater. In addition to collecting the elevation at high resolution ~ 1m and vertical precision ~ 15 cm, the intensity of the reflected green laser also provides insights into what is on the seabed and can be exploited for mapping. A 60 MPIX RCD30 camera capable of capturing NIR and RGB bands of imagery is co-aligned with the lidar sensor to provide additional data that can be directly georeferenced and used with the lidar for mapping and engineering applications. The AGRG Coastal Research Team have conducted several surveys in the Maritimes since 2014. Various applications of these data will be presented including mapping submerged aquatic vegetation, input to hydrodynamic model simulations, and shoreline sensitivity mapping.