Science Learning Hub logo
TopicsConceptsCitizen scienceTeacher PLDGlossary
Sign in
Image

Antarctic bottom water and global ocean circulation

Globe diagram showing warm water and cold water streams driving global ocean currents.

Major deep ocean currents circulate cold Antarctic bottom water (the blue line) out to the rest of the world. This is part of the ocean conveyor belt, moving warm tropical waters (in red) downwards and forcing cold, nutrient-rich waters upwards (in blue) and circulating water around the globe. Temperature and salinity drive these deep currents.

Glossary

Rights: Jacqui Stuart, Victoria University of Wellington, CC BY-NC-ND 4.0
Published: 14 August 2025Size: 932.03 KB
Referencing Hub media

Explore related content

Appears inRelated resources
Globe diagram showing warm water and cold water streams driving global ocean currents.

Article

Changing times in Antarctica

In February 2025, the world hit a new low for global sea ice extent. Arctic sea ice has been declining ...

Read more
Sun with arrows showing heat energy hitting an Earth globe and being reflected back with a text explanation of the ice-albedo feedback.

Article

The heartbeat of Antarctica

Step out on the sea ice just outside New Zealand’s Scott Base with researchers studying the physics of its annual ...

Read more
Ocean motion

Article

Ocean motion

The ocean has a complex circulation system, moving water, heat, salt and nutrients around the world. Surface currents in the ...

Read more
The Southern Ocean’s ecological richness and significance for global climate

Article

The Southern Ocean’s ecological richness and significance for global climate

In 2018, a map named after an oceanographer went viral.

Read more

See our newsletters here.

NewsEventsAboutContact usPrivacyCopyrightHelp

The Science Learning Hub Pokapū Akoranga Pūtaiao is funded through the Ministry of Business, Innovation and Employment's Science in Society Initiative.

Science Learning Hub Pokapū Akoranga Pūtaiao © 2007-2025 The University of Waikato Te Whare Wānanga o Waikato