Browse Journal Highlights

Highlights include enriched and related content of notable journal articles presented on Eos org AGU org AGU On Demand and in AGU journals

Why Do Great Earthquakes Follow Each Other at Subduction Zones?

Terri Cook, Freelance Writer

From Eos.org: Research Spotlights—A decade of continuous GPS measurements in South America indicate that enhanced strain accumulation following a great earthquake can initiate failure along adjacent fault segments.  Recently, seismologists have recognized that great subduction zone earthquakes, also.... more

Volcanic eruption expanded ozone hole to record size

Blog—On April 22, 2015, the Chilean volcano Calbuco erupted, spewing volcanic ash 10 kilometers (six miles) skyward. But Calbuco didn’t just tear a hole in the Earth that day. A new study suggests it also tore a hole in the sky. The new study argues that Calbuco’s eruption stretched the Antarctic Ozone.... more

Initiation of Snowball Earth with volcanic sulfur aerosol emissions

Editors’ Highlight—This paper proposes that volcanic activity, specifically the injection of sulfate aerosols into the stratosphere, directly led to the Sturtian glaciation, the first Neoproterozoic global glaciation event. The authors test the plausibility of their hypothesis with three low-order atmospheric.... more

Including Ozone Complexities in Climate Change Projections

Brendan Bane, Freelance Writer

From Eos.org: Research Spotlights— A simplified view of ozone chemistry can cause climate models to overestimate the response of jet streams to increasing greenhouse gases. Jet streams are like rivers. Just as the flow of a river is shaped by factors such as weather and natural obstacles, the trajectories.... more

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Featured Special Collection

First Results from NASA's Magnetospheric Multiscale (MMS) Mission

The Magnetospheric Multiscale (MMS) mission has been performing particle and electromagnetic field measurements in the near-Earth environment since its launch in March 2015. Thanks to data with unprecedented time resolution on four identical spacecraft in a close tetrahedron configuration (down to 10 km), MMS science goals are to probe and understand the electron-scale physics involved in the magnetic reconnection process. This collection provides a selection of key results obtained during the first phase of the mission at the dayside magnetopause. It includes new observations of the geometry and variability of the reconnection process, the detailed dynamics of particles, fields and waves in the vicinity of the reconnection region, the observation of small-scale signatures at current sheets formed in the magnetosheath, in Kevlin-Helmholtz vortices, or flux transfer events, as well as other small-scale features which are by-products of magnetic reconnection or not. These results open a new window for our understanding of magnetic reconnection in space, with direct and numerous implications for astrophysical and laboratory plasmas.