Autonomous Vessels Launched to Monitor Southern Ocean
A new five-year mission will use autonomous drones to measure carbon absorption in the remote Southern Ocean.
Updated on Oct. 8, 2026 in Environmental
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Autonomous marine vehicles have departed Hobart, Australia, to begin a five-year mission tracking carbon dioxide absorption around Antarctica. This project aims to address critical data gaps in how the Southern Ocean processes atmospheric carbon.
Why it matters
The Southern Ocean accounts for 40% of global oceanic carbon dioxide absorption, making it a pivotal area for understanding climate change. This mission provides essential data from remote, wintry regions that have historically been difficult for researchers to reach.
The mission utilizes four wind and solar-powered Saildrone Explorer vehicles to track carbon levels. Each vessel is expected to cover approximately 22,000 kilometers per mission, building on a successful 196-day Antarctic circumnavigation completed in 2019.
The players
Saildrone Explorer
These are autonomous surface vehicles that operate using wind and solar power to conduct long-range oceanographic research.
The details
Researchers will launch the autonomous vehicles quarterly and adjust their trajectories dynamically to prioritize high-value data collection regions. The information gathered will be integrated into the annual Global Carbon Budget to refine existing climate models.
Timeline
In 2019, a Saildrone Explorer successfully completed an Antarctic circumnavigation.
The first vehicle departed from Hobart, Australia, in October 2026.
The monitoring campaign is scheduled to span a five-year duration from 2026 to 2031.
The Big Picture
This mission extends the existing Global Carbon Budget research by providing new, high-resolution data from previously under-sampled regions of the Southern Ocean. By filling these observational voids, the project strengthens the scientific accuracy of global carbon cycle models.
Improved carbon absorption data enables scientists to develop more precise climate projections for policymakers and global industries. These findings will ultimately influence international environmental standards and long-term carbon mitigation strategies.
The takeaway
Reliable climate data is essential for managing global carbon targets effectively. Ongoing technological advancements in autonomous seafaring offer a scalable solution for monitoring inaccessible regions of the world's oceans.
Further reading
For more information on ongoing efforts to study the planet's climate systems, visit the Environmental section.
Source note: This article includes information reported by PlusNews.
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