An acoustic survey took place at Cape Bank Marine Conservation Zone (MCZ) in
2015.
MBES bathymetry and backscatter data were acquired using the Kongsberg EM2040
system operated at 300 kHz and deployed on the drop keel of RV Cefas
Endeavour, which was lowered to its full extent to minimise the effect of bad
weather on the acoustic signal. Variations of sound velocity with water depth
were determined using a CTD (Conductivity Temperature Depth) probe and applied
during MBES data acquisition.The raw MBES bathymetry data were processed
using CARIS HIPS. Tidal information was gathered using a CNAV 3050 DGPS
receiver. Tide height data was smoothed and extracted to reduce the tide on
the bathymetry. The soundings were cleaned and smoothed using CARIS (to IHO
order 1 where possible). MBES backscatter data were processed with Fledermaus
Geocoder Toolbox to produce standard and floating point (FP) geotiffs.
Separate processing reports are provided to satisfy quality assurance (QA)
requirements.
