World-class accuracy & depth
HawkEye II typically deliver bathymetric LiDAR data with a density ranging from 1.7x1.7 metres to 3.5x3.5 metres. The system is unique in that it fulfills the IHO order 1b for sea charts with less than 25 cm rms. Measurement depths for the system range from 0.3, to about 3 times the secchi depth. Sea floor topography data is captured with a data density ranging from 4 to 1 point per square meter, typically with a higher accuracy than 15 cm rms.
Simultaneous land & sea surveying
HawkEye simultaneously collects 4000 bathymetric measements (full waveform) and 64000 topographic measurements (up to four returns per shot), which makes the system the most efficient airborne bathymetric LiDAR survey system available on the world market. Furthermore, HawkEye utilized two lasers, one green and one infrared, providing two separate reflections (the IR-laser is primarly reflected from the surface of the water, while the green penetrates the surface). Using this information, it is simple to differentiate between the different bodies in the survey data.
Operator usability
During the flight mission, the HawkEye system is operated via a laptop that is also used for mission planning. A secondary monitor guides the pilot during the survey. Signals are processed in real-time and are stored on removable solid-state disks. Hence, when the day is over, the system will be ready for the next mission simply by exchanging drives and mission plan.
Examples of end products
- X,Y,Z point cloud, including topography and bathymetry.
- Digital elevation models
- Sea charts (X,Y,depth) including tidal corrections and cleaning according to IHO standards
- Ortho mosaic images
- Shoreline vector
- Sea-bed reflectance and sea-bed classification