Core Concepts
The Southern Ocean's Antarctic circumpolar current plays a crucial role in global ocean circulation and climate regulation, with its history revealing surprising stability amidst changing environmental conditions.
Abstract
The Southern Ocean harbors the Antarctic circumpolar current (ACC), a powerful force that propels over 100 million cubic meters of water per second around the globe. This current, connecting the Pacific, Indian, and Atlantic ocean basins, is pivotal in the global ocean circulation and climate regulation. Lamy et al. present reconstructions in Nature showcasing the ACC's variability over millennia due to Earth's orbit changes. Despite long-term temperature shifts, the current's strength has remained relatively stable for five million years, hinting at evolving impacts of global cooling and potential insights into future warming effects on this influential current.
The Southern Ocean hosts the Antarctic circumpolar current (ACC), a significant player in global ocean circulation.
Lamy et al. present reconstructions revealing the ACC's variability over millennia due to Earth's orbit changes.
Despite long-term temperature shifts, the ACC's strength has remained stable for five million years, indicating evolving impacts of global cooling.
Stats
The Antarctic circumpolar current transports over 100 million cubic meters of water per second.
The ACC's strength has remained relatively stable over the past five million years.
Quotes
"Connecting the Pacific, Indian, and Atlantic ocean basins, the Antarctic circumpolar current plays a central role in global ocean circulation and climate regulation."
"The records indicate that the current’s strength has remained relatively stable over the past five million years, despite long-term changes in Earth’s temperature."