1. Positioning system Hardware
2 hydrophones x ( 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 X €) 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)

2. Positioning system Software /DAQ
Signal recognition
LBL autocalibration
Hydrophone Triangulation
Visualization
Estmated cost : 50 k€
Shore DAQ, Computing & storage

3. 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

4. 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 ?

5. 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.