{
    "trajectory_name": "ru44-20251211T0108",
    "glider": "ru44",
    "platform": {
        "owner": "Rutgers University",
        "os_version": "11.0",
        "instruments": "instrument_ctd,instrument_flbbcdslc,instrument_optode,instrument_suna",
        "type_vocabulary": "http://vocab.nerc.ac.uk/collection/L06/current/27/",
        "maker": "Teledyne Webb Research",
        "type": "sub-surface gliders",
        "long_name": "ru44 Slocum G3S",
        "depth_rating": "1000m",
        "maker_vocabulary": "http://vocab.nerc.ac.uk/collection/L35/current/MAN0020/,http://vocab.nerc.ac.uk/collection/B75/current/ORG01077/",
        "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.",
        "id": "ru44",
        "serial_number": "1068",
        "model": "Teledyne Webb Research Slocum G3S glider",
        "wmo_id": "8901127",
        "comment": "",
        "wmo_platform_code": "8901127",
        "model_vocabulary": "http://vocab.nerc.ac.uk/collection/B76/current/B7600029/"
    },
    "global_attributes": {
        "acknowledgment": "This deployment is supported by The Climate Foundation",
        "deployment": "ru44-20251211T0108",
        "contributor_role": "Principal Investigator,Glider Pilot,Glider Pilot,Glider Pilot,Data Management,Data Management,Data Management",
        "program": "Deepwater-Irrigated Open-Ocean Seaweed Mariculture Field Studies and Modeling",
        "contributor_name": "Oscar Schofield,Dave Aragon,Nicole Waite,Brian Buckingham,John Kerfoot,Lori Garzio,Laura Nazzaro",
        "institution": "Rutgers University",
        "project": "Seaforestation",
        "wmo_id": "8901127",
        "infoUrl": "https://rucool.marine.rutgers.edu/ https://www.climatefoundation.org/marine-permaculture.html",
        "references": "https://rucool.marine.rutgers.edu/ https://www.climatefoundation.org/marine-permaculture.html",
        "wmo_platform_code": "8901127",
        "comment": "Deployed by Joe Rauch and team out of Compostela, Cebu, Philippines with shoreside support from Dave Aragon. Data from this CTD are suspect. Potential lag mostly visible in the salinity profiles. Please use with caution.",
        "gts_ingest": "True",
        "summary": "The project supports the assessment and development of an open ocean seaweed farming demonstration facility near Cebu City, Philippines. The project will provide a framework for assessing the potential to increase carbon dioxide sequestration in the ocean. Assessing the seaweed farm potential will require the capability for assessing the biogeochemical impacts associated with the seaweed farm and the corresponding environmental footprint on the regional systems. The glider will be deployed in an ocean monitoring program to sample the oceanographic and ecological parameters, providing a baseline dataset to inform potential environmental impacts of seaweed farms. The goal is for sustained spatial sampling around the seaweed farm to map both the upstream and downstream conditions. The glider is equipped with a Seabird CTD, a WETLabs FLBBCD ECO puck configured for simultaneous chlorophyll fluorescence, colored dissolved organic matter, and optical backscatter measurements, an Aanderaa Optode for measuring dissolved oxygen, and a Seabird SUNA for measuring nitrate concentrations.",
        "sea_name": "Philippine Sea"
    }
}