Slocum Glider
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| Slocum Glider | |
|---|---|
| Name | Slocum Glider |
| Type | Autonomous underwater glider |
| Manufacturer | Teledyne Webb Research |
| First service | 1999 |
| Propulsion | Buoyancy-driven glide |
| Endurance | Weeks to months |
| Depth rating | 1000 m (varies by model) |
Slocum Glider The Slocum Glider is an autonomous underwater vehicle used for sustained oceanographic observation and remote sensing. It operates by converting buoyancy changes into hydrodynamic lift and is employed by a range of scientific, governmental, and private organizations for multidisciplinary missions. The platform has been integrated into programs led by international research institutes and naval agencies.
Overview
The Slocum Glider was introduced to address long-duration monitoring needs across oceanographic projects coordinated by groups such as Scripps Institution of Oceanography, Woods Hole Oceanographic Institution, National Oceanic and Atmospheric Administration, Office of Naval Research, and National Science Foundation. Operators include academic centers like University of Washington, University of Miami, University of California, San Diego, and agencies such as Naval Research Laboratory, Defense Advanced Research Projects Agency, European Space Agency, and United States Navy. The platform supported initiatives including the Global Ocean Observing System, Argo (oceanography), Ocean Observatories Initiative, Gulf of Mexico Research Initiative, and multinational efforts involving Plymouth Marine Laboratory and Lamont–Doherty Earth Observatory.
Design and Components
The hull and buoyancy system stem from engineering work at companies like Teledyne Technologies and Curtiss-Wright. Key mechanical components reference actuators by suppliers such as Honeywell, Bosch, and ATI Industrial Automation. Navigation relies on sensors and modules from firms including Honeywell Aerospace, KVH Industries, and Teledyne Marine. Power systems integrate battery technologies developed by Saft (company), Panasonic, and Energizer Holdings derivatives, while pressure housings follow standards used by Cameron International and Halliburton. Software stacks are often built using libraries and frameworks associated with NASA Jet Propulsion Laboratory, MIT, Carnegie Mellon University, and Stanford University research groups.
Operation and Deployment
Glider missions are planned using tools and services from projects such as Google Earth, ESRI, NOAA National Data Buoy Center, and Global Telecommunication System. Launch and recovery operations have been executed from platforms operated by NOAA Ship Okeanos Explorer, R/V Atlantis (AGOR-25), RRS James Cook, USCGC Healy (WAGB-20), and research vessels from Bigelow Laboratory for Ocean Sciences and Lamont–Doherty. Command, control, and mission planning draw on standards promoted by IEEE bodies and data management aligned with COPERNICUS Programme, GEOSS, and IOCCP. Field deployments have worked in concert with programs run by National Science Foundation Office of Polar Programs and multinational tasking from NATO research collaborations.
Sensor Payloads and Communications
Payload suites on Slocum Gliders frequently include sensors from Seabird Electronics, RBR, Aanderaa Data Instruments, and Wetlabs, measuring variables studied at Scripps Institution of Oceanography and Woods Hole Oceanographic Institution. Common instruments for salinity, temperature, oxygen, and fluorescence reference standards by Seabird and RBR, while specialized biogeochemical sensors derive from research at MBARI, Monterey Bay Aquarium Research Institute, Plymouth Marine Laboratory, and Max Planck Institute for Marine Microbiology. Acoustic localization and navigation use transponders compatible with systems developed by Kongsberg Gruppen, Thales Group, and Echologger research teams. Communications methods employ satellite services from Iridium Communications, Inmarsat, and Globalstar, and integrate telemetry protocols shaped by NASA Deep Space Network research and European Southern Observatory data handling approaches.
Applications and Missions
Slocum Gliders have been deployed for climate and oceanographic studies tied to programs such as Intergovernmental Panel on Climate Change, Coupled Model Intercomparison Project, and regional campaigns by California Current Ecosystem Long-Term Ecological Research Network. They supported biological studies linked to Monterey Bay Aquarium Research Institute and Smithsonian Tropical Research Institute, participated in oil-spill monitoring for Deepwater Horizon response activities coordinated with United States Geological Survey and Environmental Protection Agency, and contributed to iceberg and polar studies in collaboration with British Antarctic Survey and Alfred Wegener Institute. Military and defense-related operations included trials with Office of Naval Research and exercises run by United States Southern Command and United States Pacific Fleet.
Development History and Operators
Initial development was driven by collaborations among institutions such as Woods Hole Oceanographic Institution, Scripps Institution of Oceanography, and industry partners including Teledyne Technologies and Webb Research Corporation. Subsequent iterations incorporated research from MIT Sea Grant, NOAA Pacific Marine Environmental Laboratory, and Naval Postgraduate School programs. Academic operators span University of Rhode Island, University of New Hampshire, University of Victoria, Dalhousie University, University of British Columbia, and Centre National de la Recherche Scientifique. Commercial and governmental operators include Teledyne Marine, Lockheed Martin, BAE Systems, United States Navy, French Navy, Canadian Coast Guard, and international research consortia associated with European Marine Board.