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

Are Humans to Blame for Worsening Heat Waves in China?

Emily Underwood, Freelance Writer

From Research Spotlights— A new study suggests that even hotter events will follow unless greenhouse gas emissions are reduced.  At least 40 people died during China’s record-breaking 2013 heat wave, when temperatures spiked to more than 105°F. The deadly event was just one of a string of.... more

Two ice core records reconstruct paleoclimate in North Pacific

Editor’s Highlight—   This paper presents a long-term record of sea salt accumulation in the Denali ice core from Alaska, which is interpreted as a time series of the strength of the wintertime Aleutian Low pressure system. The main conclusions are that the strength of the Aleutian Low has been increasing.... more

Insights into the journeys of aerosol particles over the Arctic

Editor’s Highlight—   Arctic boundary layer clouds play an important role in the surface energy balance. Given the often-pristine conditions, the optical and microphysical properties of these clouds are sensitive to the number concentration of aerosol particles that can act as cloud condensation nuclei.... more

How Quickly Is Mercury’s Surface Evolving?

Terri Cook, Freelance Writer

From Research Spotlights— New measurements of impact craters on Mercury’s smooth plains suggest the topography of the solar system’s innermost planet is changing at twice the rate of landforms on the Moon.  For the last several billion years, collisions with meteoroids, asteroids, and comets.... more

A challenge to the longstanding theory on auroral arc formation

Editor’s Highlight—   The ionospheric feedback instability (IFI) has been postulated for many years since the seminal paper by Atkinson in 1970. This paper is the first work that applies a simplified height-resolved ionosphere, and it shows a very real problem with previous studies on this instability.... more

Warm winter events in the Arctic are becoming more frequent, lasting longer

Press Release—  Arctic winter warming events – winter days when temperatures peak above minus 10 degrees Celsius – are a normal part of the Arctic climate over the ice-covered Arctic Ocean, but new research finds they are becoming more frequent and lasting longer than they did three decades ago. A new.... more

Huge Storms Disrupted Jupiter’s Fastest Jet Stream in 2016

Sarah Stanley, Freelance Writer

From Research Spotlights— Recurrent jet stream disturbances provide glimpses of what lies beneath the gas giant’s thick upper cloud cover.    In late 2016, a quartet of huge storms disrupted the usually stable flow of a rapid atmospheric jet stream that encircles Jupiter. Multiple instruments.... more

Greenland’s summer ocean bloom likely fueled by iron

Blog— Iron particles catching a ride on glacial meltwater washed out to sea by drifting currents is likely fueling a recently discovered summer algal bloom off the southern coast of Greenland, a new study finds. Microalgae, also known as phytoplankton, are plant-like, marine microorganisms that form.... more


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Early Results: Juno at Jupiter 

Early results from Juno's mission at Jupiter including approach to Jupiter and the first perijove pass (PJ1). Juno's scientific objectives include the study of Jupiter's interior, atmosphere and polar magnetosphere with the goal of understanding Jupiter's origin, formation and evolution. This collection of papers provides early results from Juno's measurements of the gravity and magnetic fields, deep atmospheric microwave sounding, infrared, visible and ultraviolet images/spectra and an array of fields and particles instruments as well as context for the early results with respect to current theory and models of Jupiter's formation and evolution. Topics include both Juno - Jupiter related theoretical models and data analysis as well as collaborative observations made from Earth based assets.