2 hours ago · Portugal
'Atmospheric rivers' helped open a Portugal-sized hole in Antarctica's winter sea ice
What's happening
SignalsMonitor is following this as a technology story. Phys.org Breaking News is the outlet attached so far. The reports are tied to Portugal. The first report grouped here was at 13 Oct 2026, 17:40 UTC. The headline in use is “'Atmospheric rivers' helped open a Portugal-sized hole in Antarctica's winter sea ice”. This note is SignalsMonitor's own briefing, not the publisher's article.
What we know
Polynyas are patches of open water surrounded by sea ice, where heat and moisture can pass freely between the ocean and atmosphere. In August 2024, a vast polynya opened up in Breid Bay, off the coast of East Antarctica, in the depths of winter.
Story timeline
Reports grouped into this story, earliest first. Exact repeats from the same outlet are collapsed.
- First reported by Phys.org Breaking News
'Atmospheric rivers' helped open a Portugal-sized hole in Antarctica's winter sea ice
Reported by 1 outlet
- Phys.org Breaking News
- Phys.org Breaking News'Atmospheric rivers' helped open a Portugal-sized hole in Antarctica's winter sea ice