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Indian Ocean

Black hills covered in snow in front of a deep blue sea and tall white mountains.
Posted inResearch Spotlights

A Deeper Dive into Wintry, Carbon-Absorbing Antarctic Waters

by Aaron Sidder 8 March 20238 March 2023

Cold surface water in the Southern Ocean is a critical component in ocean carbon uptake. A new study profiles it using state-of-the-art research techniques.

Map of study area and graphs showing magnetic signal evolution.
Posted inEditors' Highlights

Rapid Evolution of Volcanic Systems Reflected in Magnetics

by Agnes Kontny 28 February 202324 February 2023

Spatiotemporal magnetic monitoring along with InSAR models is a powerful tool to image magmatic, hydrothermal, and mechanical changes within the volcanic edifice of the Piton de la Fournaise.

Two maps that show the pre-monsoon precipitation and monsoon precipitation.
Posted inEditors' Highlights

Source of Precipitation Moisture Feeding Himalayan Rivers

by Tissa Illangasekare 17 February 202314 March 2023

Isotope study showing the partitioning of moisture into snow, ice, and groundwater allows an understanding of the relative contribution to river flow to show where Himalayan river water comes from.

Charts comparing observed sea-surface temperature with high-resolution reconstructions.
Posted inEditors' Highlights

Unlocking Ultra-High-Resolution Paleothermometry from Sediments

by Kaustubh Thirumalai 18 May 202214 September 2022

Mass spectrometric imaging techniques used to extract micron-scale organic paleothermometry signatures from Arabian Sea sediments show that they skillfully reflect observations.

Rain clouds hang over a valley in Uttarakhand, India.
Posted inNews

Higher Sea Surface Temperatures Could Lead to a Weaker Monsoon

by T. V. Padma 6 April 202226 October 2022

Most climate models predict that the South Asian monsoon will strengthen with climate change, but new research indicates warmer ocean temperatures may lead to a drier phenomenon.

Aerial view looking over a coastal island city
Posted inFeatures

A Cagey Approach to Speedy and Safe Seafloor Deployments

by Pascal Pelleau, Ronan Apprioual, Antony Ferrant and Daniel Aslanian 11 March 20221 June 2022

Researchers devised a simple way to deliver ocean bottom seismometers accurately to the seafloor to study ongoing seismic and volcanic activity near the islands of Mayotte.

Satellite image of Earth’s Eastern Hemisphere.
Posted inNews

An Indian Ocean Network to Keep Track of Climate

by Rishika Pardikar 2 February 20226 June 2022

Until this decade, the Indian Ocean was not well monitored. Today, the Indian Ocean Observing System helps with both weather monitoring and climate modeling.

Satellite image of Cyclone Tauktae hitting India’s west coast
Posted inNews

Cyclone Tauktae Documents a Climate Trend in the Tropics

by Rishika Pardikar 27 May 20212 March 2023

The western Indian Ocean has been warming at a rate faster than any other region in the tropical oceans, a pattern that is contributing to more frequent and intense storm activity.

Plot showing volume transport changes in the AMOC and ITF in response to an abrupt quadrupling of carbon-dioxide occurring in year 0
Posted inEditors' Highlights

What Causes Centennial Changes in the Indonesian Throughflow?

by J. Sprintall 11 January 202112 January 2022

Transient long-term changes in the strength of the Indonesian Throughflow are unexpectedly linked to circulation changes in the remote high-latitude North Atlantic.

Satellite image of the island of Mayotte and its surrounding fringing reef
Posted inNews

New Volcano, Old Caldera

by Alka Tripathy-Lang 15 December 20206 September 2022

Researchers suggest a magma chamber sits within an old submarine caldera structure that extends into the mantle. Nearby, a new underwater volcano emerged with a flurry of seismicity.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
Earth’s Future
“How to Build a Climate-Resilient Water Supply”
By Rachel Fritts

EDITORS' HIGHLIGHTS
AGU Advances
“How Do Atmospheric Rivers Respond to Extratropical Variability?”
By Sarah Kang

EDITORS' VOX
Reviews of Geophysics
“Rare and Revealing: Radiocarbon in Service of Paleoceanography”
By Luke C. Skinner and Edouard Bard

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