CCS - CCS_SF_03 Mooring data May 2018 deployment EDGE System

This bio-acoustic data was collected between the 8th May 2018 and the 11th November 2018 at the proposed site for subsea CCS off Gippsland, Victoria using the EDGE system. Data summary. The WBAT system recorded data successfully for the duration of the deployment. Unfortunately the turret rotation mechanism failed after ~ 48 hours. EDGE System The EDGE system comprises a Simrad WBAT self contained echosounder connected to a Simrad ES70-7CD 70 kHz 7 degree transducer. The transducer is set atop a turret where a belt driven motor rotates the transducer through 360 degrees over a 20 minute period. A second rotation of 20 minuts occurs to take the transducer back to the starting postion. The rotation comprises steps of 7 degrees rotation where 20 pings are recorded at each step. The EDGE system was mounted to seafloor lander 2 (CCS_SF_03) and was deployed on the 8th of May 2018 in approximately 18m of water at site proposed for subsea CCS (38.15.3824S and 147.24.9715 E). Parameter | Value Transducer | ES70-7CD SN120 Transceiver | Simrad WBAT SN253667 Power (W) | 500 Pulse duration (ms) | 1.024 Mode | Continuous Wave Range (m) | 450 Ping rate (s) | 1.1 Pings per cycle | 2500 Duty cycle | Commence at 00:10 and 12:10 every day for 53 minutes This instrument has had a calibration of the WBAT echosounder/transducer combination at the CSIRO WharfSide Calibration Facility on the 19th of April 2018.