# A new study describes how and when this mighty ring current developed in Earth's.

*aerospace · news · 2026-04-06 · Phys.org*

## Key points

- The Antarctic Circumpolar Current formed only after Australia moved further from Antarctica.
- Early ACC development featured strong currents in the Atlantic and Indian sectors, but not the Pacific.
- Simulations confirm that westerly winds through the Tasman Gateway were crucial for ACC formation.
- This study is the first to use coupled high-resolution models to simulate ACC's infancy and effects.

**Countries:** Australia, Antarctica, New Zealand

[Read the full story on Phys.org](https://phys.org/news/2026-04-earth-powerful-ocean-current-revealed.html)

---

Canonical: https://newsio.io/n/3da0ecd7-e26a-4832-999a-56bffc184ee8/a-new-study-describes-how-and-when-this-mighty-ring-current-developed-in-earths
Summarized by Newsio from Phys.org. https://newsio.io/how-it-works