{
    "global_attributes": {
        "contributor_name": "Jonny Chapman,Alice Ren,Laura Nazzaro,Lori Garzio",
        "references": "https://bios.asu.edu/gliders, https://bios.asu.edu/scope, https://rucool.marine.rutgers.edu/data/underwater-gliders/",
        "contributor_role": "Glider Pilot,Glider Pilot,Data Management,Data Management",
        "institution": "Arizona State University,Bermuda Institute of Ocean Sciences",
        "infoUrl": "https://bios.asu.edu/gliders, https://bios.asu.edu/scope, https://rucool.marine.rutgers.edu",
        "cdm_data_type": "Trajectory",
        "sea_name": "Sargasso Sea",
        "acknowledgment": "This deployment is supported by Simons Foundation International",
        "project": "BIOS-SCOPE",
        "program": "BIOS-SCOPE",
        "summary": "This glider will be deployed from August to October to provide support to the annual BIOS-SCOPE process cruise.",
        "wmo_platform_code": "4802992",
        "gts_ingest": "True",
        "comment": "Deployed by Jonny Chapman aboard R/V Stommel out of St. George's, Bermuda with shore support by Dr. Alice Ren.",
        "deployment": "bios_anna2-20260818T1639",
        "wmo_id": "4802992"
    },
    "platform": {
        "description": "A long-range autonomous underwater vehicle (AUV) based on buoyancy. It 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.",
        "depth_rating": "1000m",
        "id": "bios_anna2",
        "os_version": "11.04",
        "type": "sub-surface gliders",
        "maker_vocabulary": "http://vocab.nerc.ac.uk/collection/L35/current/MAN0020/,http://vocab.nerc.ac.uk/collection/B75/current/ORG01077/",
        "model_vocabulary": "http://vocab.nerc.ac.uk/collection/B76/current/B7600014/",
        "long_name": "bios_anna2 Slocum G3",
        "instruments": "instrument_ctd,instrument_flbbbbv1,instrument_optode",
        "type_vocabulary": "http://vocab.nerc.ac.uk/collection/L06/current/27/",
        "owner": "Bermuda Institute of Ocean Sciences",
        "serial_number": "846",
        "maker": "Teledyne Webb Research",
        "wmo_platform_code": "4802992",
        "comment": "",
        "wmo_id": "4802992",
        "model": "Teledyne Webb Research Slocum G3 glider"
    },
    "glider": "bios_anna2",
    "trajectory_name": "bios_anna2-20260818T1639"
}