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Geophysical Research Letters

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Aerial photo of Arctic ponds.
Posted inEditors' Highlights

Beyond Up and Down: How Arctic Ponds Stir Sideways

by Valeriy Ivanov 13 May 20257 May 2025

Contrary to common assumptions, Arctic ponds mix in more than one direction. A new study finds that nighttime sideways flows, not vertical mixing, renew bottom waters.

Posted inEditors' Highlights

二氧化碳恢复后的北极海冰:对北大西洋天气的影响

by Gudrun Magnusdottir 24 April 202524 April 2025

北极海冰恢复不完全导致冬季急流向赤道偏移。由于海洋环流起到了额外的驱动作用,北大西洋急流的偏移尤其不确定。

Photo of the snowy Southern Alps covered in red dust.
Posted inEditors' Highlights

Why the Southern Alps Turned Red During the Summer of 2019-2020

by Bin Zhao 23 April 202522 April 2025

Snow on the Southern Alps turned from white to red in 2019-2020. New geochemical evidence points to the color change resulting from red Australian desert dust carried across the Tasman Sea.

A stretch of green grass is visible between two rows of solar panels stretching into the distance. Gray clouds hang ominously over the scene.
Posted inResearch Spotlights

Solar Power Shortages Are on the Rise

by Rebecca Dzombak 16 April 202516 April 2025

More communities are relying on solar power as a source of renewable energy, but increasing demand and climate change threaten its reliability.

Dozens of ice cores—long, thin cylinders—are stored on a metal shelf and seen from the front, so they look like circles.
Posted inResearch Spotlights

When Ice Ages End, Ocean Circulation Fine-Tunes Ocean Heat

Sarah Stanley, Science Writer by Sarah Stanley 14 April 202514 April 2025

New Antarctic ice core data bolster model predictions of ocean heat content during glacials and interglacials.

Maps of the study region.
Posted inEditors' Highlights

Nonlinear Dynamics May Lead to Faster Retreat of Antarctic Ice

by Minghua Zhang 14 April 202514 April 2025

The Antarctic ice sheet behaves like a non-Newtonian fluid and may be more nonlinear than previously thought. This impacts its future stability and requires revisions to predictions of sea level rise.

Four seemingly identical, octagonal, disklike structures, each with several various thin antennas extending outward at various angles, appear to be floating in a closely spaced cluster in space. In the background, on the right side of the image, is the round shape of the planet Earth, encircled by translucent, overlapping blue and purple lines.
Posted inResearch Spotlights

New Insights into an Enigmatic Form of Magnetic Reconnection

Sarah Stanley, Science Writer by Sarah Stanley 11 April 202511 April 2025

A new study deepens understanding of magnetic field behavior recently discovered by NASA in Earth’s magnetosphere.

Graphs and maps from the study.
Posted inEditors' Highlights

Arctic Sea Ice After CO2 Recovery: Implications for North Atlantic Weather

by Gudrun Magnusdottir 4 April 202524 April 2025

Incomplete Arctic sea ice recovery results in equatorward-shifted winter jets. The North Atlantic jet shift is particularly uncertain due to the ocean circulation acting as an additional driver.

Diagram from the study.
Posted inEditors' Highlights

Peatland Plantations in Southeast Asia are Carbon Hotspots

by Valeriy Ivanov 26 March 202526 March 2025

A new study reports a rare set of data on greenhouse gas production and transport for a tropical peatland plantation showing exceptionally high concentrations of dissolved organic carbon.

4 maps of Antarctica with different model results projected onto them.
Posted inEditors' Highlights

Subglacial Hydrology Under the Antarctic Ice Sheet

by Minghua Zhang 25 March 202525 March 2025

Using simulations of subglacial hydrology, a new study shows the volume and movement of meltwater underneath the Antarctic Ice Sheet.

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