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Science Desk · NOAA

Uncrewed Saildrones begin a five-year circuit of Antarctica to measure ocean carbon

The first of four Saildrone Explorers left Hobart, Tasmania, on Sept. 19, 2026, for the COCO2 project.

Agency release dated 2026-10-08

What the record says

  • NOAA says the first of four instrumented Saildrone Explorer uncrewed surface vehicles departed Hobart, Tasmania, on Sept. 19, 2026.
  • The COCO2 project is led by researchers at NOAA, Columbia University and Australia’s CSIRO.
  • Three more Saildrones are to deploy every three months during 2027 and repeatedly circle Antarctica.
  • The goal is to resolve how much carbon dioxide the Southern Ocean absorbs, especially in winter.

Source: NOAA — Saildrone research fleet to circle Antarctica for 5 years. Notice Nearby summarized this release; it adds no claims beyond the agency record.