Assess the relative merits of multi-beam and phase differencing systems for specific mapping applications in water depths from very shallow to full ocean depths. H2.5 Backscatter H2.5a Relationship between Specify and configure a side scan sonar Backscatter backscatter content and and a swath echo sounder for backscatter from side scan, characteristics of the seabed, acquisition under varying environmental interferometric water column properties and conditions and for specific application. swath sonars acoustic signal parameters and multi-beam Generation of backscatter Monitor and assess quality on-line and echo sounders information within acoustic apply appropriate compensation. systems Principle of backscatter Apply backscatter principles to produce a (A) compensation for absorption, compensated backscatter mosaic. incidence angle, gain and power Mosaicing H3: and Remote Sensing H3.1 LiDAR H3.1a Airborne Wavelength, water Determine penetration, the applicability of topographic systems ground detection and and bathymetric laser LiDAR to specific safety. mapping applications. Scanning frequency Specify and the appropriate LiDAR (A) pattern in relation technology to for given applications and coverage and spatial identify density. supporting survey operations Influence of sea required surface to conduct the survey and roughness, water process column data. turbidity on the beam pattern H3.1b Airborne Identify potential sources of in and penetration. data combined topographic and bathymetric Sea bed optical characteristics products LiDAR data and apply corrective and bottom detection. processing techniques as appropriate. (I)
Assess the relative merits of multi-beam and phase differencing systems for specific mapping applications in water depths from very shallow to full ocean depths. H2.5 Backscatter H2.5a Backscatter from side scan, interferometric swath sonars and multi-beam echo sounders (A) Relationship between backscatter content and characteristics of the seabed, water column properties and acoustic signal parameters Generation of backscatter information within acoustic systems Principle of backscatter compensation for absorption, incidence angle, gain and power Mosaicing Specify and configure a side scan sonar and a swath echo sounder for backscatter acquisition under varying environmental conditions and for specific application. Monitor and assess quality on-line and apply appropriate compensation. Apply backscatter principles to produce a compensated backscatter mosaic. H3: and Remote Sensing H3.1 LiDAR H3.1a Airborne systems (A) Wavelength, water penetration, ground detection and laser safety. Scanning frequency and pattern in relation to coverage and spatial density. Influence of sea surface roughness, water column turbidity on the beam pattern and penetration. Sea bed optical characteristics and bottom detection. Determine the applicability of topographic and bathymetric LiDAR to specific mapping applications. Specify the appropriate LiDAR technology for given applications and identify supporting survey operations required to conduct the survey and process data. H3.1b Airborne data products Identify potential sources of in combined topographic and bathymetric LiDAR data and apply corrective processing techniques as appropriate. (I)
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