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Pacific Ocean

Posted inEditors' Highlights

“North Pacific Nutrient Leakage” During Glacials

by Helen Bostock 1 December 20174 May 2022

Carbon isotope data suggest an alternative source of nutrients to the Eastern Equatorial Pacific during glacial periods.

Posted inEditors' Highlights

Is Global Warming Suppressing Canonical El Niño?

by Kristopher B. Karnauskas 16 November 201714 February 2023

A study explores the relationship between diverse El Niño events and the background state of the tropical Pacific.

Dissolved silicon in ocean sediment reveal the hidden past of Pacific currents
Posted inResearch Spotlights

Microfossils Illuminate Ancient Ocean Currents

Elizabeth Thompson by Elizabeth Thompson 23 October 20174 May 2022

Researchers use dissolved silicon concentrations to map out how currents may have changed millennia ago in the Pacific.

Monitoring team collecting a marine sediment sample near Fukushima Daiichi.
Posted inNews

IAEA Affirms Japan’s Fukushima-Related Radioactivity Monitoring

Tim Hornyak, Science Writer by Tim Hornyak 11 October 20171 April 2024

Laboratories outside Japan have validated the results. Marine radioactivity levels from the nuclear disaster have fallen, but questions remain years after the meltdown.

Scientists aboard the R/V Sonne profiled the seafloor and subsurface near Ritter Island, north of New Guinea, in 2016.
Posted inScience Updates

An 1888 Volcanic Collapse Becomes a Benchmark for Tsunami Models

by A. Micallef, S. F. L. Watt, C. Berndt, M. Urlaub, S.Brune, I. Klaucke, C. Böttner, J. Karstens and J. Elger 10 October 201718 November 2022

When volcanic mountains slide into the sea, they trigger tsunamis. How big are these waves, and how far away can they do damage? Ritter Island provides some answers.

Researchers look to hydrothermal vents for clues into the movement of Earth’s lower crust
Posted inResearch Spotlights

Is the Lower Crust Convecting Beneath Mid-Ocean Ridges?

by Terri Cook 2 October 201724 March 2023

The first attempt to couple models of hydrothermal circulation and magmatic convection along fast-spreading ridges may explain the spacing of hydrothermal vent fields along the East Pacific Rise.

: Researchers create a 66-year data record to see how El Niño impacts temperatures in the California Current System
Posted inResearch Spotlights

Powerful Pacific Forces Disrupt the California Current

by S. Witman 11 August 20176 October 2021

Scientists create a 66-year data record to shed light on the role of El Niño in the California Current System’s shifting temperatures.

Researchers unravel the mystery of an anomaly in Earth’s ionosphere
Posted inResearch Spotlights

Auroras May Explain an Anomaly in Earth’s Ionosphere

by E. Underwood 7 August 201723 January 2023

A new study finds that the ionospheric anomaly over the Weddell Sea is likely influenced by proximity to auroral energy input, rather than by tilting magnetic fields.

Researchers analyze seafloor sediment cores to understand past behavior of the Black Current
Posted inResearch Spotlights

Sediment Cores Reveal Ocean Current’s Past Life

by S. Witman 28 July 20179 May 2023

East Asia’s Black Current may have rerouted in the past 10,000 years or so.

Posted inEditors' Vox

Mesmerized by Gracefully Gliding Albatrosses

by U. ten Brink 18 July 20176 October 2021

Despite avian distractions and dreadful weather, a research cruise to map the seafloor off Alaska revealed new insights into the Queen Charlotte Fault.

Posts pagination

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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In Alaska, Wildfires Help Prevent Future Burns. Will That Feedback Loop Hold?

24 September 202625 September 2026
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Reducing Uncertainty in Groundwater Models Using Airborne Geophysics

28 September 202625 September 2026
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In Appreciation of AGU’s Outstanding Reviewers of 2025

14 September 202610 September 2026
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