Positioning system Hardware 2 hydrophones x (14 + 1 floors) = 30 x 9 towers = 270 hydrophones LBL transmitter x 1 floor x 9 towers = 9 transmitters Proposed Lay-out --- (Digital hydrophones) “Positioning” (low cost – 800 €) hydrophones on 13 floors = 187 k€ “Scientific” (2000 €) hydrophones on 2 floors = 36 k€ (including cables and connectors) “Positioning” preamplified hydrophones (-180 dB re 1V/uPa) “Scientific” preamplified hydrophones (-170 dB re 1V/uPa) LBL Transducers (low cost e.g. Sensor X30 - 500 €) x 9 towers = 3.5 k€ Acoustic emitter board (autocalibrating LBL-USBL R&D included) = 40 k€ Tests of LBL-USBL compatibility will start soon using PEGASO USBL (already discussed with M. Musumeci and K. Leismuller)
Positioning system Software /DAQ Signal recognition LBL autocalibration Hydrophone Triangulation Visualization Estmated cost : 50 k€ Shore DAQ, Computing & storage
Oceanographic instrumentaion Standard : CTD, transmissometers, Current meters, pressure gauge Proposal 1: Instrumentation line with 10 instruments 3 CTDs (1, 7,14), 3 Cstar (2, 8, 13), 3 DCS (3, 6,12) , 1 Pressurge gauge (tower base) Proposal 2: Instruments on 3 towers: PREFERRED Tower 1: 3 CTDs (1, 7,14) and 1 Pressurge gauge (tower base) + Oxygen sensor (verify) Tower 2: 3 Cstar (1, 7, 14) --- no: Check better instruments !!! Tower 3: 3 DCS (1, 7,14) ADCP Profiler - check Sound velocimeters – check Optode (on-board DCS) - check CTD SBE Microcat 37 DCS Aanderaa Cstar Absolute Pressure Gauge : Paroscientific
Oceanographic instrumentaion High space&time sampling : Porfido Proposal : 2 towers equipped with 1 “Porfido” system per floor (1 OM) Sensors: 1 (or 2) tower with high precision Thermometers 1 (or 0) tower with high precision pressure sensors LNF working on conductivity sensors (need strong R&D in my view) Other ?
Optical calibration instrumentaion Laser beacon and nano beacon Nanobeacon : Valencia available to start production Laser Beacon: New project from Valencia group (R&D). Valencia proposes 1 or 2 LB to be installed on tower bases.