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Journal of Geophysical Research: Earth Surface

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 202310 February 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 202220 January 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.

Photograph of migrating sand shoals
Posted inEditors' Vox

Can We Better Predict Coastal Change?

by Jaap Nienhuis, Florent Grasso, Evan B. Goldstein, Robert Kopp, Kristen Splinter and Kristy Tiampo 17 June 20221 August 2022

A new special collection invites studies on a new era of models and knowledge that provide predictions or insights into predictability in coastal geomorphology.

Photographs of natural jamming of boulders in canyon constrictions and slit dams.
Posted inEditors' Highlights

Good or Bad Jam? Modeling Boulders’ Fate at Constrictions

by Mikaël Attal 23 May 202215 November 2022

A new modeling framework to assess the likelihood of jamming at constrictions can be used to support the design of effective mitigation measures and reduce risk in debris flow prone areas.

Comparison of channels extracted from a high-resolution Digital Elevation Model using a traditional flow routing method and using the new method based on a Riverlab flow simulation (Elder Creek catchment, California, USA).
Posted inEditors' Highlights

Running Water on Topographic Data to Better Delineate Channels

by Mikaël Attal 25 April 202227 April 2022

Two-dimensional hydraulic simulations are a powerful tool to identify process domains such as channels, hillslopes, and floodplains in high-resolution topographic data.

Comparison of the range of lithium isotopic ratios measured in this work at the Bisley 1 catchment in Puerto Rico with those previously published.
Posted inEditors' Highlights

Extreme Lithium Isotope Fractionations During Intense Weathering

by Lixin Jin 18 April 202221 December 2022

Extreme lithium fractionation is observed when primary minerals in andesite are transformed to secondary clay minerals and then to oxides with intensive chemical weathering in a tropical climate.

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By Rachel Fritts

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By Sarah Kang

EDITORS' VOX
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By Luke C. Skinner and Edouard Bard

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