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SEA operations – June 2012 Short summary report R. Papaleo 22 june 2012.

Published byPhilip Woods Modified over 8 years ago

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Presentation on theme: "SEA operations – June 2012 Short summary report R. Papaleo 22 june 2012."— Presentation transcript:

1 SEA operations – June 2012 Short summary report R. Papaleo 22 june 2012

2 Scope of work Deploy SN1 underwater station and connect to TSN termination frame Deploy LIDO acoustic station and connect to NEMO JB Option: Make a visual inspection of the NEMO Mechanical Tower deployed 2 years ago

3 SN1 and LIDO deployment

4 5 km 20 km 5 km The Catania Test Site: a multidisciplinary deep sea-lab NEMO JB LIDO demo mission of ESONET-EMSO: Refurbishment of SN1 and OnDE observatories Goals: Bioacoustics, ocean monitoring,Tsunami warning. North Branch (SN1) 4 LBW hydrophones 2 LF hydrophones CTD, ADCP, Seismometers magnetometers pressure gauges GPS time stamping South Branch (Onde2) 4 LBW hydrophones Underwater GPS time stamping Infrastructure requested by UCL and CSIC for installation of deep-sea stations in 2013 LNS Test Site Laboratory at the port of Catania LNS-INFN Catania 100 Mbps Internet Radio Link

5 SN1 (TSN) installation and connection: 8 June 2012 SN1 deployed with the MODUS Shuttle (INGV standard operation) MODUS Shuttle power failure. SN1 released 250 above seabed (1850 m). SN1 fallen upside down on the seabed ROV and Certamen C/L Vessel joint operation: SN1 hooked and turned correctly above the seabed SN1 connected to the TSN cable termination. Switch on.

6 OnDE 2 (TSS) a full NEMO Phase II floor All electronics is sucessfully working Underwater GPS data time stamping OK Optical attenuationof the line (including JB) 12 dB Heading -8.5° North Hydrophone data under analysis Mechanical vessel and interfaces Cabling Power Control and feeding System DWDM optical data transmission system Floor Control Module main board Acoustic Boards Compass

7 OnDE 2 (TSS) Installation and Connection: 10 June 2012 ROV moving in water OnDE 2 NEMO JBTSS Frame Three structures and ROV in a range of 20 m at 2100 m water depth Shuttle ROV Garage (TMS) hooked to the ship

8 Visual Inspection of the tower

9 Scope of work of the mechanical tower Check deployment and release procedures Check unfurling procedures Check behaviour of the tower after the unfurling procedures

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