Journal of Geophysical Research: Earth Surface Archives - Page 6 of 13

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).

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.

Editors' 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.

Three figures from the paper showing a map of bedrock channels on the seafloor, an image of a remotely-operated vehicle, and an image of potholes.

Editors' Highlights

New Observations Reveal Ancient Subglacial Water Paths

by Olga Sergienko 13 April 20222 August 2022

Analyses of new shipboard and ROV observations of bedrock channels carved by floods and outbursts from subglacial lakes under Antarctica shed light on complex subglacial processes.

Maps of debris flow similarity index (DFSI) and the corresponding lengths of those debris flow channel segments.

Editors' Highlights

Debris Flows Keep the Landscape on the Straight and Narrow

by Adam Booth 6 April 20223 May 2022

New methods for identifying debris flow-shaped channels improve hazard quantification and highlight how high uplift rates and fractured bedrock facilitate debris flow-dominated landscape evolution.

Images showing sediment remobilized after the 2008 Wenchuan earthquake, China.

Editors' Highlights

Moving Earthquake-Generated Sediment Through a Landscape

by Amy E. East 30 March 202229 June 2022

Ten years after the Wenchuan earthquake, most of the new sediment it produced remained on the landscape, indicating a long recovery time.

Map of the central-eastern Nepal Himalaya showing the locations of more than 12,800 landslides over a 30-year period.

Editors' Highlights

History Matters When Gauging Hillslope Susceptibility to Failure

by Matthew Brain 24 March 202212 April 2022

Using susceptibility models to forecast the potential locations of landslides is a key tool in mitigating landslide hazard, but are existing approaches appropriate in dynamic mountainous settings?