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Scientists Set Up Two-Week Grounding-Line Drill on Antarctica’s Thwaites ‘Doomsday’ Glacier

The mission targets the grounding zone to capture real-time data on processes driving rapid melt.

Overview

  • An international BAS–KOPRI team has established a temporary outpost on Thwaites, airlifting about 10 personnel and roughly 17 tons of gear by helicopter some 18–19 miles from their ship.
  • Researchers plan to hot‑water drill about 1,000 metres through the ice to a 30‑centimetre borehole, deploying instruments that will transmit near‑real‑time readings from beneath the ice shelf.
  • The operation faces a hard cutoff as the support vessel must depart by 7 February, with progress constrained by severe weather, crevasse risk, and boreholes that refreeze within one to two days.
  • Measurements will target subshelf temperatures, currents, water and sediment samples, and calving‑driven underwater waves that can mix warm deep water upward and accelerate melting.
  • Scientists say data from this campaign will sharpen sea‑level projections, as a full collapse of Thwaites could raise global sea levels by about 65 centimetres.