{
    "platform": {
        "id": "ru40",
        "description": "A long-range autonomous underwater vehicle (AUV) based on buoyancy. The G3S utilises the same features as the G3 glider but uses a new STM32 Processor. This replaces the Persistor processor used on the G3 glider in the Science and Flight Bays. The G3S is used for remote water column sampling. It uses hydraulic buoyancy change to alter the vehicle density in relation to the surrounding water thereby causing the vehicle to either float or sink. Given an appropriate dive or climb angle, the wings and body lift and convert some of this vertical motion into a forward saw tooth horizontal motion. Periodically, the glider surfaces and calls via Iridium Satellite Phone (anywhere in world) or Free Wave RF Modem (line of sight) in to Dockserver (auto attendant computer) to relay navigational fix, data and receive further instructions for command and control. The glider is capable of storm sampling and can be flown in a coordinated fleet. It is 1.5 m in length, has a hull diameter of 22 cm and mass of 55-70 kgs (dependent upon configuration). It has an exchangeable payload (capacity up to 6 L) which is capable of housing a variety of environmental sensors such as nitrate and oxygen. It uses lithium or alkaline batteries. It has a deployment range of 350-13000 km (dependent upon configuration), a deployment length of 15 days to 18 months (dependent upon configuration) and an operating depth range of 4-1000m. Navigation is via GPS waypoints, a pressure and altimeter sensor. Maximum speed is 0.35 m/s (0.68 knot) with the buoyancy engine and an average up to 0.5 m/s (1 knots) with full drive. The thruster provides speeds up to 1 m/s (2 knots). It transmits via RF modem, Iridium (RUDICS), ARGOS or acoustic modem. The new STM32L4 CPU processor utilises OpenRTOS running up to 120 MHz, with 8 Mbytes RAM and 32 Mbytes of flash memory.",
        "maker": "Teledyne Webb Research",
        "type_vocabulary": "http://vocab.nerc.ac.uk/collection/L06/current/27/",
        "model_vocabulary": "http://vocab.nerc.ac.uk/collection/B76/current/B7600029/",
        "maker_vocabulary": "http://vocab.nerc.ac.uk/collection/L35/current/MAN0020/,http://vocab.nerc.ac.uk/collection/B75/current/ORG01077/",
        "long_name": "ru40 Slocum G3S",
        "serial_number": "1061",
        "comment": "",
        "instruments": "instrument_ctd,instrument_pH,instrument_flbbcdslc,instrument_azfp,instrument_vmt",
        "owner": "Rutgers University",
        "os_version": "11.04",
        "type": "sub-surface gliders",
        "wmo_id": "8901042",
        "model": "Teledyne Webb Research Slocum G3S glider",
        "wmo_platform_code": "8901042",
        "depth_rating": "100m"
    },
    "global_attributes": {
        "institution": "Rutgers University",
        "wmo_platform_code": "8901042",
        "program": "An ecological and oceanographic monitoring program to inform offshore wind related research over the coastal continental shelf of New Jersey",
        "sea_name": "Mid-Atlantic Bight",
        "infoUrl": "https://rucool.marine.rutgers.edu/",
        "contributor_role": "Principal Investigator,Principal Investigator,Glider Pilot,Glider Pilot,Glider Pilot,Data Management,Data Management,Data Management",
        "gts_ingest": "True",
        "contributor_name": "Grace Saba,Josh Kohut,Dave Aragon,Nicole Waite,Brian Buckingham,John Kerfoot,Lori Garzio,Laura Nazzaro",
        "deployment": "ru40-20260227T1605",
        "references": "https://rucool.marine.rutgers.edu/",
        "acknowledgment": "This deployment is supported by New Jersey's Research & Monitoring Initiative (RMI) (New Jersey Department of Environmental Protection, New Jersey Board of Public Utilities)",
        "wmo_id": "8901042",
        "project": "RMI Eco-gliders",
        "comment": "Deployed by Lori Garzio, Doug Hood, Conor Nixon and Elliot Brown aboard TowBoat out of Manasquan, NJ with shoreside support from Brian Buckingham.",
        "summary": "This project is conducting a seasonal baseline survey with a pair of gliders deployed in each season over two years with a full complement of available sensors to simultaneously map oceanographic and ecological variables. This glider is equipped with a coupled CTD/pH sensor, a WETLabs FLBBCD ECO puck configured for simultaneous chlorophyll fluorescence and optical backscatter measurements, an Acoustic Zooplankton Fish Profiler (AZFP) multi-frequency echo sounder for active acoustic detection of pelagic organisms (transducers configured for zooplankton using 120, 200, 455 and 769 kHz), and a Vemco VMT fish telemetry receiver to track tagged species moving through the region. This approximately 21- to 30-day deployment out of Manasquan, New Jersey will run a zig-zag transect along the coast of New Jersey, in and around current and planned offshore wind lease areas, with a planned recovery out of Tuckerton, New Jersey. The real-time dataset contains CTD, chlorophyll a, CDOM, optical backscatter, and pH measurements. Acoustically-derived data will be processed post-deployment."
    },
    "trajectory_name": "ru40-20260227T1605",
    "glider": "ru40"
}