TFH Berlin Deployment technologies of seafloor observatories Hans W. Gerber Dept. Mechanical Engineering TFH Berlin, University of Applied Sciences, Germany feasible and reasonable

TFH Berlin 2 MARINE SCIENCES MARINE TECHNOLOGY OCEANOGRAPHY ENGINEERING SCIENCES EQUIPMENT – PROCEDURES - DESIGNS MAN AT SEA ROV / AUV SUBMERSIBLES AND - … SYSTEMS EXPLORATIONEXPLOITATION AND PROTECTION OBSERVATION MEASUREMENT INSPECTION MAINTENANCE REPAIR Technology at sea

TFH Berlin 3 Arctic - water exiting into the Atlantic ocean Norwegian margin - slope instabilities - slides North of the Faroes oceanic fluxes of heat, salt …. Porcupine Seabight/Abyssal Plain bio-geochemical flux, fisheries and oil-gas exploration Azores Mid-Atlantic Ridge habitats with hydrothermal vents and sea floor morphology - crust spreading Gulf of Cadiz - Iberian margin. complexity with the junction of the Eurasian and African plates Ligurian Sea Existing cables installed for the ANTARES neutrino detector experiment Eastern Sicily near Etna, multidisciplinary observatory recently completed its first mission - existing cable Hellenic Area characterized by significant seismicity, special habitats in deep basins Black Sea anoxic conditions in the deep, invasive species and high sediment loads Proposed deep sea observatories

TFH Berlin 4 MODUS Bottom Station Moored Buoy for Near-Real-Time Communication Combined systems: mooring and observatory

TFH Berlin 5 Time [d] mass [kg] Data link related to the amount  storage, nrtcs, rtcs, cable (band width) BENTHIC STATION and/or MOORING LANDER ROV

TFH Berlin 6 A-Frame - Ship motion and collision force during operation Wind Force Wave Slam Current induced Drag Wave particle drag; Intertial Force Umbilical Slack cond. Heave Drag Inertial force Umbilical Added mass Heave, Roll,... Impact forces, Deployment Recovery docking system definition

TFH Berlin 7 From concept to operation Intervention at 4000 meter Concept Design Analysis Manufac. + Tests operation

TFH Berlin 8 horizontal CFD Simulation deployment recovery

TFH Berlin 9 CAD, FEM, CFD, RPT -> Product

TFH Berlin 10 Environmental conditions

TFH Berlin 11 MABEL - Multidisciplinary Antarctic BEnthic Laboratory

TFH Berlin 12 BIODEEP

TFH Berlin 13 aboard

TFH Berlin 14 Flow around an observatory: velocity magnitude

TFH Berlin 15 Observatory with standard interface and open frame Robust frame for long term operation and heavy equipment

TFH Berlin 16 c GEOSTAR as gateway station plus satellites (incl. most demanding sensors) 6-8 month experiment NW of the Marsili volcanic seamount at 3260 m w.d. ORION ORION: Networking c

TFH Berlin 17 Italian – (INGV) Submarine Network Programme (SN-n; n = 1  11) ORION: Idea of networks Marine significant sites Land integrated network extended by

TFH Berlin 18 Latch Device Top of BS

TFH Berlin 19 Intervention systems

TFH Berlin 20 Operation via AUV (Launch And Recovery System) ROV(A-Frame) Cable- system (A-Frame) Operation depth 4000 m? few available some available ultimate payload <10 KN ~30 KN Handling People >=3>=32 Duration of Underwater Operation <= 48h Theoretical infinite Sea State limitations During Launch & Recovery During whole Oper. Different field for operation

TFH Berlin 21 Cable connected systems like MODUS

TFH Berlin 22 Cable connected systems like MODUS

TFH Berlin 23 End