Sep 132013

image (5)

Researchers from U.S. and Canadian institutions are teaming up for a coordinated launch of up to 14 autonomous ocean-monitoring gliders.

The gliders will collect a unique and extensive set of oceanographic and animal-tracking data along the North American Eastern Seaboard. The mission represents the largest international use of coordinated autonomous sampling vehicles attempted to date.

Launched between Georgia and Nova Scotia, the gliders will travel east to the continental shelf break and back during the month- to two-month-long mission. The multi-institution survey will serve as proof of concept of large-scale marine coordination to monitor the oceanographic conditions that directly influence animal migrations and storm events.

Rutgers University leads the mission to which the Dalhousie-based Ocean Tracking Network (OTN) is contributing two Slocum gliders to be launched from Yarmouth and Halifax, respectively. Members of the U.S. Integrated Ocean Observing System (IOOS) are also participating.

Slocum gliders—named for the first sailor to travel solo around the world, Nova Scotian Joshua Slocum—move by altering their density to ascend or descend in the water column. Wings on the glider convert vertical displacement into forward motion resulting in a saw-tooth dive pattern down to 500 metres below the surface. A series of sampling instruments collects, stores and transmits data back to researchers via satellite in near real-time.

Eight of the 14 gliders are equipped with Vemco mobile transceivers—tracking devices that record the presence of acoustically tagged marine animals. The timing of the coordinated glider mission coincides with migration periods for many species and serves to inform poorly understood migration patterns of species like blue sharks. Of special interest to OTN investigators are insights into the unanticipated absence of right whales off the southern tip of Nova Scotia in 2013.

The mission will also collect important data on the shelf’s thermal structure for forecasting major storm events. September to October is the peak differential period between air and sea temperatures—the phenomenon that powers hurricanes.

Read more . . .


The Latest on: Ocean-Sampling Robot Gliders
  • Reportlinker Adds The Emerging UMV and UGV Markets 2009-2019
    on July 26, 2009 at 5:00 pm

    In recent years, the threat of improvised explosive devices (IEDs) in Iraq has been a major impetus for investment in robots capable of explosive ... 3.11 Other Propulsion Systems 3.12 Autonomous Ocean Sampling Network (AOSN) 3.13 Technical Challenges ... […]

  • Robotics in Remote and Hostile Environments
    on November 15, 2007 at 4:00 pm

    In our continuing quest for knowledge, robots are powerful tools for accessing environments ... the adoption of onboard deliberation techniques by the operations and science communities has proceeded slowly. One variation of the SPA paradigm that is ... […]

  • Taking the Oceans' Pulse, With Help From Robot Subs
    on September 29, 2003 at 6:00 pm

    In the $8 million monthlong Monterey Bay project, called an Autonomous Ocean Sampling Network, the scientists sought ... Their makers call the vehicles gliders. Powered by 250 C-size alkaline batteries -- industrial-grade versions of what powers ... […]

  • Monterey Bay turns the tide of weather research / Ambitious team tries to document water's dynamics
    on September 21, 2003 at 9:00 pm

    Just about everything that can be measured in a body of seawater -- temperature and chemistry, current velocity and direction, sea surface height, biological activity -- was checked and checked again by an armada of diving robots, deep-sea gliders ... […]

via Google News and Bing News

Other Interesting Posts

Leave a Reply

%d bloggers like this: