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geomorphology

Australia’s remote Nullarbor Plain.
Posted inNews

A Mysterious Dome Reveals Clues to Australia’s Miocene History

by Nathaniel Scharping 17 October 202226 January 2023

The Nullarbor Plain has been relatively untouched by geological forces, leaving traces of the continent’s deep past.

A diagram and a graph showing how ocean island eruptions are much more likely to exhibit SO2 degassing and deformation.
Posted inEditors' Highlights

Why Do Arc Volcanoes Deform Less Than Ocean Island Volcanoes?

by Paul Asimow 15 August 202215 November 2022

Volcanic ground deformation is not simply correlated with erupted volume. Researchers propose that high concentrations of magmatic volatiles make systems more compressible and suppress deformation.

Flooding during June 2011 on the Missouri River floodplain near Arrow Rock, Mo.
Posted inResearch Spotlights

Missouri River Floodplain Expansion, Services, and Resiliency

by Aaron Sidder 28 July 202221 September 2022

Benefits might accrue for both wildlife and climate resiliency if more floodplains along the lower Missouri River were allowed to flood.

Satellite view of Brahmaputra River
Posted inNews

Satellite Images Reveal a New View of Ancient Earth’s Rivers

by Joel Goldberg 27 July 202227 July 2022

A new method shows a key relationship between the width and makeup of Earth’s river channels over time. The technique could be applied to other terrestrial bodies, such as Mars.

Series of photographs of North St. Vrain Creek showing changes over time for one specific logjam.
Posted inEditors' Highlights

Logjams May Be Transient but Their Effect is Long Lasting

by Patricia Saco 20 May 202215 November 2022

Even though natural logjams in rivers continuously change and maybe short-lived, their effects in terms of geomorphic diversity and habitat can be surprisingly long-lasting.

An aerial view of an Amazonian landscape, colored by elevation
Posted inResearch Spotlights

How Climate Change Shaped the Amazon’s Land and Life

by Rebecca Dzombak 28 January 202228 January 2022

Ice Age climate swings shaped the equatorial basin’s terrain—and possibly its ecology—faster than previously thought.

A black-and-white photograph of a river.
Posted inNews

What a Gold Mining Mishap Taught Us About Rivers

by Jenessa Duncombe 13 January 202221 March 2022

Miners in Alaska rerouted a river to search for gold. One hundred years later, the new channel is teaching scientists how rivers shape Earth.

Visualization of the trajectories of some sand grains during two different kinds of barchan-barchan interactions.
Posted inEditors' Highlights

Grain Scale Dynamics During Barchan-Barchan Interactions

by Thomas Pähtz 8 October 20218 October 2021

A new study pinpoints grain scale dynamics during binary interactions between barchan dunes.

Long, nearly straight lines of sand ridges on Mars
Posted inNews

Megaripples on Mars—How to Name Wind-Shaped Features on the Red Planet

by Nola Taylor Tillman 30 August 202114 April 2022

New research suggests a more settled terminology for Martian aeolian landforms based on size and geomorphology.

Posted inAGU News

Anderson Receives 2020 G. K. Gilbert Award in Surface Processes

by AGU 1 July 202114 April 2022

Suzanne P. Anderson received the 2020 G. K. Gilbert Award in Surface Processes at AGU’s virtual Fall Meeting 2020. The award recognizes “sustained and outstanding contributions to the field of Earth and planetary surface processes from a mid-career or senior scientist.”

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Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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