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Conductivity/temperature sensors (self‐contained HOBO loggers on deployments 1 and 2; sensor on Cefas ESM2 logger for deployments 3 to 7) were fitted to the MiniLander and used to calculate in‐ situ salinity. The salinity of some of the water samples was measured and used to calibrate the sensor data.
A multibeam survey of the site was carried out prior to deploying the first MiniLander. Following an onboard assessment of the seabed topography the position of the MiniLander was moved approximately 200m south west off the top of a sand wave crest and into the adjacent trough. A further multibeam survey was undertaken after the final recovery to establish that the site had been cleared of debris.
Cefas has now delivered the full requirements and scope of this contract and obtained the data noted above to facilitate assessment by others.