With unique monsoon, mesoscale and submesoscale processes, the Indian Ocean offers critical insights and new challenges to achieving a full understanding of marine environments and the Earth system.
ocean circulation
Trump Administration to Remove Hundreds of Deep-Ocean Observation Instruments, Dismantling $368 Million Program
The Trump administration’s National Science Foundation (NSF) has begun dismantling the infrastructure of a $368 million deep-ocean observing program critical to monitoring marine ecosystems, global currents, marine heat waves, and more, according to a 21 May announcement.
Widening Channels and Westerly Winds Together Formed Earth’s Strongest Current
The Antarctic Circumpolar Current could only develop once wind patterns aligned with new ocean passages 34 million years ago, a new study suggests.
The AMOC of the Ice Age Was Warmer Than Once Thought
An analysis of sediment cores indicates that North Atlantic waters were relatively warm and continued to circulate even under major climate stress during the Last Glacial Maximum.
How the Rise of a Salty Blob Led to the Fall of the Last Ice Age
Scientists have long suspected that high salinity levels in the deep ocean were responsible for keeping carbon dioxide locked away during the last ice age. New research finds the strongest evidence yet.
Marine Snow Grows Faster and Fluffier as It Sinks
New observations highlight how abiotic and biotic processes influence the tiny oceanic particles.
Tiny Turbulent Whirls Keep the Arctic Ocean Flowing
Centimeter-sized turbulence controls the rate at which the Arctic Ocean churns.
Ocean Tunneling May Have Set Off an Ancient Pacific Cooldown
The ocean’s depths cooled off about 1.5 million years ago, and scientists think watery tunnels from the south may be to blame.
Scrambling to Study Smoke on the Water
Timely action shows the impact of urban fires on freshwater and marine ecosystems.
On the Origins of Subantarctic Mode Waters
A modeling study shows how warm subtropical waters and cold Antarctic waters combine to form an Indo-Pacific water mass that plays a key role in Earth’s climate.
