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Journal of Geophysical Research: Earth Surface

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Photo of monitoring station in a river and map of study area with mass of bedload transport.
Posted inEditors' Highlights

Seismometers Listening at Rivers to Measure Sediment Transport

by Odin Marc 8 September 20236 September 2023

Bedload sediment, transported throughout an alpine catchment by a flood, was remotely tracked in detail by analyzing the ground vibrations recorded by a network of 24 seismic sensors.

Photo of a riverbank in Alaska.
Posted inEditors' Highlights

Frozen Riverbanks May Erode Faster in a Warming Arctic

by Marisa Repasch 16 August 202315 August 2023

Frozen flume experiments reveal the sensitivity of permafrost riverbank erosion to water temperature, bank roughness, and pore-ice content.

Subaqueous seismic profiles from the paper.
Posted inEditors' Highlights

Delta Degradation Leads to Exacerbated Greenhouse Gas Emissions

by Ton Hoitink 31 March 202319 September 2023

Seismic ship surveys and seabed elevation maps of the Yangtze subaqueous delta reveal how the reduction of sediment supply to the coastal ocean can trigger increased greenhouse gas emissions.

Map showing glacier extent and graphs
Posted inEditors' Highlights

Scotland’s Last Glaciers Cause a Shift in an Old Paradigm

by Olga Sergienko 24 March 202324 March 2023

Cosmogenic geochronology of Scotland’s vanished glaciers indicates that the paradigm of weakened North Atlantic currents causing a rapid regional cooling is no longer valid.

Diagram showing various glacial lake outburst flood process chains
Posted inEditors' Highlights

Artificial Lake-Level Lowering Alleviates Floods in the Himalayas

by Dongfeng Li 8 March 20236 March 2023

A new model combining future permafrost degradation and related avalanches demonstrates that artificial lake-lowering could significantly reduce the risk of glacial lake outburst floods.

Schematic representation of the model presented in this study.
Posted inEditors' Highlights

What Electrons Can Tell Us About the Speed of Sand

by Harrison Gray 13 February 202328 March 2023

A new sediment tracer uses the interactions between radiation, charge, and the Sun to uncover the hidden transport histories of sand grains.

Aerial view of a muddy river delta with meandering stream channels emanating from a river emerging from a forest
Posted inResearch Spotlights

When Projecting Coastal Resilience, Sediment Compaction Is Key

by Morgan Rehnberg 30 September 202230 September 2022

The addition of new sediment helps build up lowland environments like deltas and marshes, but it also compacts materials beneath it—a vital, but often overlooked, factor in landscape evolution studies.

Diagram showing how the authors used GPS, anchors, and fiber-optic strain meters to measure coastal subsidence.
Posted inEditors' Highlights

Tracking Subsidence on Deltas With Fiber-Optics

by John Shaw 20 September 202219 September 2023

Fiberoptic strain meters capable of measuring micron-scale subsidence reveal a Holocene sediment package on the Mississippi Delta that is mostly stable.

Photos of the sample locations on Khumbu Glacier and Lobuche Glacier.
Posted inEditors' Highlights

Glacier Advance and Retreat: Insights From the Top of the World

by Mikaël Attal 7 September 202229 September 2022

New dating of glacial features reveals predictable glacier behavior in response to climate warming and cooling in the Everest region in the past 8,000 years.

Diagrams and graphs showing the growth of submarine slides.
Posted inEditors' Highlights

Growth That Economists Would Envy

by Michel Louge 20 July 202221 July 2022

A new study reveals how small cracks turn into gigantic submarine slides.

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Features from AGU Journals

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By Sarah Derouin

EDITORS' HIGHLIGHTS
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“Collaboration Helps Overcome Challenges in Air Quality Monitoring”
By Muki Haklay

EDITORS' VOX
Reviews of Geophysics
“What We Know and Don’t Know About Climate Tipping Elements”
By Seaver Wang

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