Ocean Observatories Initiative Coastal Global Scale Nodes

Ocean Observatories Initiative Coastal & Global Scale Nodes At Sea Test 2 Hybrid Profiler Mooring Preliminary Design Review AST 2 Hypbrid Profiler Mooring PDR

Purpose of AST 2 (From 3207 -00003) The purpose of the AST 2 DT is two fold: 1. Assess and/or verify key technical aspects (i. e. , requirements and design) of developmental items intended for production that would otherwise be difficult to accomplish outside an at-sea exercise; and 2. Execute and mature the engineering development, build and test processes on stationary platforms that represent the bulk of marine assets to be deployed for OOI prior to production. AST 2 Hybrid Profiler Mooring PDR

AST 2 Assets and Their Configuration (Table 1, ibid) Coastal Surface Mooring (AS 02 CPSM) Coastal Profiler Mooring (AS 02 CPPM) Global Hybrid Profiler Mooring (AS 02 HYPM) Drawing # 3607 -00001 3607 -00006 3607 -00010 Upper Termination Coastal Standard Power Surface Buoy Submersible surface buoy Surface-Piercing Profiler Lower Termination BARF Anchor Cable/Hose Type EM cable Stretch Hose at Top EM Cable EM cable Profilers N/A Wire-following Surface-Piercing Power Wind/PV Rechargeable Battery Primary Battery Telemetry High-Speed Sat Dual Low-Speed Sat Short-Range RF (Wi-Fi) Inductive AST 2 Hybrid Profiler Mooring PDR

AST 2 Assets and Their Configuration (Table 1, ibid, cont. ) Telemetry High-Speed Sat Dual Low-Speed Sat Short-Range RF (Wi-Fi) Inductive Dual Low-Speed Sat Short-Range RF (Wi. Fi) Inductive Platform Controller Full-Function (on buoy) Simple? DCLs 1 on buoy 1 on mooring (5 m breakout) N/A Software Full function platform control OMC platform server Simple platform control OMC platform server Core Sensors For sensor details click here (still under construction) Bulk Met (buoy) (initial buy) p. CO 2 air-sea (buoy) (initial buy) CTD (5 m) (loaner, RFP buy) 3 -channel Fluorometer (5 m) (loaner ? ) Mean Point Velocity (5 m) (loaner) CTD (profiler) Dissolved oxygen (profiler) 3 -channel Fluorometer (profiler) PAR (profiler) Turbulent Point Velocity (profiler) Inductive CTD (frame) (loaner, RFP buy) ADCP (frame) (loaner) CTD (SP Profiler float) Mean Point Velocity (SP Profiler float) CTD (SP Profiler winch) Mean Point Velocity (SP Profiler winch) CTD (mid-water platform) Mean Point Velocity (mid-water platform) CTD (WF Profiler) Turbulent Point Velocity (WF Profiler) AST 2 Hybrid Profiler Mooring PDR

Comments • Wi. Fi will not scheduled to be included in the final deployment moorings. This can be added to support testing if required. • The platform controller will be the SIO controller. AST 2 Hybrid Profiler Mooring PDR

Test Objectives & Compliance No. Objective Method Compliance Notes Full 3 Assess power consumption of primary power supplies of sensors and profilers under normal at-sea conditions Test 4 Verify platform controller functionality, telemetry functions, and data acquisition software Test Partial to Full 1 4 a Test the operation of platform controller and its associated software and telemetry functions under typical at sea conditions. Test Partial 2 AST 2 Hybrid Profiler Mooring PDR

Test Objectives & Compliance (continued) No. Objective Method Compliance 4 c Test instrument interfaces, data acquisition hardware and software, and exemplar instruments in a realistic atsea environment. Test Partial 4 d Assess connection durability for inductive telemetry links Test Partial to Full 5 Assess effects of biofouling on sensor performance Test Partial 6 Assess effects of biofouling on profiler power consumption and profiling performance. Test Full Notes AST 2 Hybrid Profiler Mooring PDR 2

Test Objectives & Compliance (continued) No. Objective 6 Validate procedures for deployment and recovery of moorings 8 Validate mooring design analysis assumptions through post-recovery data assimilation Method Compliance Demonstration Partial Test Full Notes: 1) The SIO controller will be used as the platform controller. 2) Full compliance will require the use of a wire following profiler. AST 2 Hybrid Profiler Mooring PDR Notes 2

Key test elements: – Validate performance and behavior of mooring in fully deployed deep ocean conditions – Mechanical and functional test of SPP – Telemetry – Endurance – Bi-directional communications with fully integrated system – Controller takes data from WFP then transmits to SPP for iridium transmission to shore – Controller receives and stores data from SPP – Controller receives commands from SPP via iridium from shore – Deployment & recovery safety – SPP & Large Flotation Sphere AST 2 Hybrid Profiler Mooring PDR

Mooring Design AST 2 Hybrid Profiler Mooring PDR

Mooring – SPP & Load Cell AST 2 Hybrid Profiler Mooring PDR

Mooring – Flotation Acoustic Release AST 2 Hybrid Profiler Mooring PDR

Mooring – WFP & Controller AST 2 Hybrid Profiler Mooring PDR

Mooring - Lower AST 2 Hybrid Profiler Mooring PDR

Mooring Load Steady State Launch Tension NO Current Static Tension Steady State Launch Tension AST 2 Hybrid Profiler Mooring PDR

Mooring Interfaces AST 2 Hybrid Profiler Mooring PDR

Surface Piercing Profiler - Sea. Cycler • Comm. Float: Air Wt = 40 lbs Net Buoy = 12 Length = 60” Diameter = 5. 3” Communication Float • Inst. Float: Air Wt = 510 lbs Net Buoy = 230 lbs Length = 98” Diameter = 23. 5” Instrument Float • Mech. Float: Air Wt = 4070 Net Buoy = 970 lbs Length = 160” Diameter = 55” Mechanism Float AST 2 Hybrid Profiler Mooring PDR

Wire Following Profiler – Mc. Lane • • Weight (air): 155 lb Weight (water): Neutral Max Depth: 6000 m Battery: Lithium • Comms: – Sea. Bird Underwater Inductive Modem AST 2 Hybrid Profiler Mooring PDR

64 in Flotation Sphere - WHOI Buoyancy: ~2400 lbs AST 2 Hybrid Profiler Mooring PDR

Tension Bar Load Cell – Sensing Systems • 17 -4 PH Passivated Stainless Steel • 10, 000 lb WLL • Mounting: 5/8” shackle • OD: 2” Length: 11” Signal • Output: 0. 1 to 5. 0 VDC • Input: 8. 5 to 28 VDC (12 VDC nom) AST 2 Hybrid Profiler Mooring PDR

Load Cell Data Logger WETLABS • Data Handler: DH-4 – OD: 4 in Length: 7 in • Battery Pack: BPA 50 B AST 2 Hybrid Profiler Mooring PDR

Inductive Terminations • WHOI AST 2 Hybrid Profiler Mooring PDR

SIO Controller Housing Assembly • 6061 Aluminum • Depth Rating: 3000 m • SIO Controller: Persistor Based AST 2 Hybrid Profiler Mooring PDR

Controller Electronics AST 2 Hybrid Profiler Mooring PDR

Load Cell Interface AST 2 Hybrid Profiler Mooring PDR

Acoustic & Inductive Interfaces AST 2 Hybrid Profiler Mooring PDR

Tension Bar Load Cage • 316 L Stainless Steel • Length: 59” • Width: 22” • 10, 000 lb WLL • 30, 000 lb Yield • Rated for surface moorings AST 2 Hybrid Profiler Mooring PDR

AST 2 Load Cage configuration AST 2 Hybrid Profiler Mooring PDR

Tension Bar Load Cage Payload Housings • Max Dia: 10” • Max Length: 40” AST 2 Hybrid Profiler Mooring PDR

Acoustic Modem • • • Benthos ATM-887 12 k. Hz Omni Directional 6000 m Anodized Aluminum AST 2 Hybrid Profiler Mooring PDR

Engineering Sensor • • Nortek Aquadopp 6000 Inductive Depth Rating: 6000 m Measured Parameters – Mean point velocity – Pressure AST 2 Hybrid Profiler Mooring PDR

XEOS Beacons Iridium Sable 5000 Radio XMB-7500 AST 2 Hybrid Profiler Mooring PDR Flasher XMF-7500

Glass Flotation • • Benthos 17” Glass Sphere Buoy: 56 lbs Weight: 39 lbs AST 2 Hybrid Profiler Mooring PDR

Acoustic Releases • • • ORE 8242 XS Release Load: 12, 000 lb Weight (air): 79 lbs Weight (water): 62 lbs Depth Rating: 6000 m • WHOI dual acoustic release bracket AST 2 Hybrid Profiler Mooring PDR

Mace Anchor • WHOI Mace Plate Anchor Section AST 2 Hybrid Profiler Mooring PDR