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Geophysical Research Letters

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A map showing global land cover and two graphs.
Posted inEditors' Highlights

Vegetation Carries the Signature of Recent Precipitation

by Valeriy Ivanov 3 October 202228 September 2022

Vegetation response to precipitation is important for near-term weather predictability, and researchers show that such a response can occur within a few days and last up to two months.

Image overlooking a rocky coastline and water just after sunset with a bright blue line representing a fiber-optic cable curving over the water and rocks
Posted inResearch Spotlights

Internet Cable Reveals the Source of Underwater Vibrations

by Saima May Sidik 30 September 202214 May 2024

A novel use of an existing fiber-optic cable off the coast of Spain has clued scientists in to how seismic noise is generated in the ocean.

Two-image animation of a location on Mercury’s surface showing a small impact event
Posted inResearch Spotlights

MESSENGER Reveals a More Dynamic Mercury Surface

by Morgan Rehnberg 28 September 202225 January 2023

Image pairs indicate that 99% of the planet’s surface could be altered in the next 25 million years.

Six graphs showing the correlation skill between the new hindcasts SEAS5-20C and the reanalysis CERA-20C.
Posted inEditors' Highlights

Variability of ENSO Forecast Skill Over the 20th Century

by Suzana Camargo 21 September 20226 March 2023

El Niño Southern Oscillation (ENSO) predictability is examined in a new global coupled retrospective forecast ensemble for the 20th Century.

Two graphs showing the distributions of lifetime size and lifetime maximum integral intensity kinetic energy.
Posted inEditors' Highlights

The Rapid Growth of Tropical Cyclones’ Outer Size – A New Concept

by Suzana Camargo 12 September 202219 January 2023

A new study focuses on the rapid growth of tropical cyclones and their destructive potential.

Maps overlain with prediction accuracy.
Posted inEditors' Highlights

Quantifying Changes in Midlatitude Subseasonal Prediction Skill

by Suzana Camargo 9 September 202230 September 2022

The differences between future and present subseasonal predictability in the Northern Hemisphere provided by the tropics are evaluated using neural networks.

Side-by-side images show fish-eye-style photographs of a starry evening sky illuminated by different subauroral events. The left image shows a SAR arc, a reddish arc that spans the sky. Beneath the arc the sky transitions from bright green at the horizon to purple and is partially obscured by clouds. The right image shows a STEVE phenomenon. Part of the red SAR arc is still visible but is much fainter and more of a pink color than its original red. The green and purple sky is more muted in color, and more stars and the band of the Milky Way are now visible. In both images, the silhouette of some shrubs is visible.
Posted inResearch Spotlights

From SAR Arc to STEVE: An Atmospheric Evolution

by Alexandra K. Scammell 6 September 20227 September 2022

A new study reports the first observation of a stable auroral red arc evolving into a strong thermal emission velocity enhancement during a geomagnetic storm.

The inside of the KamLAND antineutrino detector comprises a grid of tessellated segments, parallelograms and trapezoids, that fit together to form a sphere. Each segment of the detector, which is black, has 16 sensors, which are gold, arranged in a 4 by 4 pattern. Each segment is connected by a white border. At the center of the detector, and image, is a green circle.
Posted inResearch Spotlights

Estimating Uranium and Thorium Abundance with Geoneutrinos

by Morgan Rehnberg 31 August 202213 September 2025

Terrestrial electron antineutrino observations provide new constraints on the contributions of radiogenic heat in the mantle.

Yosemite National Park ecosystem featuring a stream, trees, and snow-covered hillslope.
Posted inResearch Spotlights

What Drives Hillslope Connectivity?

Aaron Sidder, freelance science writer by Aaron Sidder 23 August 202223 August 2022

Hillslopes play a critical role in linking ecosystems. Understanding the forces that drive their connections can help us to better understand adaptation in the face of climate change.

Graph from the paper.
Posted inEditors' Highlights

Arctic Salinity Pushes the AMOC Swing

by Kristopher B. Karnauskas 3 August 20222 July 2024

A model of the Atlantic Meridional Overturning Circulation (AMOC), pioneered by Henry Stommel over 60 years ago, can exhibit realistic cyclic behavior if the role of Arctic salinity is included.

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