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Journal of Geophysical Research: Earth Surface

A fish jumps out of the water as it heads upstream
Posted inResearch Spotlights

How River Capture Affects the Evolution of Aquatic Organisms

by David Shultz 28 September 202027 April 2022

River basins are dynamic environments that are always changing and reorganizing under geologic forces. New research investigates how this shape shifting influences aquatic speciation and extinction.

The entrance to the Hranice Abyss in the eastern Czech Republic.
Posted inResearch Spotlights

World’s Deepest Freshwater Cave May Be a Kilometer Deep

by Lauren Lipuma 8 September 2020

The Czech Republic’s Hranice Abyss is more than twice as deep as researchers thought.

3 maps showing accumulation of sediment and organic material in coastal Louisiana
Posted inEditors' Highlights

Coastal Sediment Deficit Appears Smaller Than Previously Thought

by T. A. J. F. Hoitink 4 September 202024 February 2022

With a deficit of sediment needed to compensate for relative sea level rise, a new study demonstrates that organic material cannot be ignored in evaluating mass and volume accumulation rates.

Photograph of bulk deposition collectors capturing atmospheric dust at Four Pines, Colorado
Posted inEditors' Highlights

Dust in the Wind: Human Impacts to the Colorado Front Range

by Amy E. East 1 July 20202 February 2022

A recent increase in airborne dust has been attributed to both climate and land use, with human activity playing a substantial role, especially in summertime at low elevations.

Charts showing relationship between catchment-averaged erosion rate and landscape steepness index
Posted inEditors' Highlights

Meteoric 10Be Reveals Lithological Control on Erosion Rates

by Mikaël Attal 1 June 202026 May 2020

New meteoric 10Be data quantify fast erosion of slates in the Zhuoshui River catchment in Taiwan and demonstrate the influence of lithology on landscape steepness.

Aerial view of a flat floodplain delta, agricultural land, and a town beyond
Posted inResearch Spotlights

Finding Natural Solutions to Man-Made Problems in River Deltas

by Kate Wheeling 3 April 202010 February 2022

Decades of research on river deltas identify gaps in our knowledge of delta behavior and the tools required to fill them in.

Satellite view of the Lena River delta in June 2019
Posted inResearch Spotlights

River Deltas at the Top of the World

by Elizabeth Thompson 20 March 202010 February 2022

The water that filters through river deltas has a large effect on the Arctic Ocean. A new study explores factors that shape Arctic river deltas and how delta form in turn changes water flow.

Digitally generated impression of the channel network of the Waimakariri River in New Zealand
Posted inEditors' Highlights

Representing Estuaries and Braided Rivers as Channel Networks

by C. Ancey 21 February 20206 June 2022

The human eye is quite good at identifying channel networks among the rich patterns exhibited by estuaries and braided rivers, but computers have a harder time doing so. Could they do better?

A seaside cliff near the town of Whitby in the United Kingdom
Posted inResearch Spotlights

Timing Matters for Rockfall Estimates

by Kate Wheeling 9 December 201912 November 2021

Researchers studying an eroding coastal cliff detected 10 times more rockfall events when monitoring surveys were conducted hourly versus monthly.

Map of Kuparuk river floodplain showing elevation
Posted inEditors' Highlights

Permafrost Thaws Rapidly as Arctic River Flooding Increases

by Amy E. East 21 October 201920 October 2021

As climate warms, Arctic rivers carry higher flows and flood earlier in the spring, causing underlying permafrost to thaw rapidly.

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