Cahalane, Conor
(2016)
Improving Satellite-derived Bathymetry.
Hydro International Magazine.
Abstract
Bathymetry is traditionally acquired using singlebeam or multibeam echosounders. This method produces accurate depth
measurements along transects but is constrained by operating cost and an inability to survey in very shallow waters.
Airborne Lidar is able to produce accurate bathymetric information over clear waters at depths up to 70m, but can be costly
and is limited by a relatively coarse bathymetric sampling interval. Experience in Irish waters has resulted in very poor seabed
detection along the east coast and limited penetration on the west coast. An efficient and cost-effective alternative is satellitederived
bathymetry.
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