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Marisa Repasch

Associate Editor, JGR: Earth Surface

Aerial photo of a glacier.
Posted inEditors' Highlights

The Pulsed Pace of Glacial Erosion

by Marisa Repasch 14 February 20257 February 2025

New data from Lago Argentino, Patagonia reveal that glacial erosion occurs in discrete pulses, which challenges previous ideas that erosion rates have increased over time due to climate change.

Diagram from the study.
Posted inEditors' Highlights

How Rock Type Shapes River Networks and Influences Landscape Evolution

by Marisa Repasch 10 February 20256 February 2025

A new study in Chile shows how small differences in rock type can drive large differences in erosion, vegetation, and river networks, illuminating the role of mineralogy in shaping landscapes.

Satellite images of 6 desert escarpments from around the world.
Posted inEditors' Highlights

Rainstorm Intensity Drives Desert Landscape Evolution

by Marisa Repasch 12 February 20248 February 2024

New mathematical models show that the persistence of near-vertical cliffs in arid landscapes is maintained by infrequent, but high-intensity rain storms.

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.

Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

Features from AGU Publications

Research Spotlights

A Long-Term Look Beneath an Antarctic Ice Shelf

6 March 20269 March 2026
Editors' Highlights

Collinearity is Not Always a Problem in Machine Learning

10 March 20269 March 2026
Editors' Vox

How Radar Reveals the Hidden Fabric of Ice Sheets

9 March 20269 March 2026
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