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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.

A view of a Washington, D.C., skyline from the Potomac River at night. The Lincoln Memorial (at left) and the Washington Monument (at right) are lit against a purple sky. Over the water of the Potomac appear the text “#AGU24 coverage from Eos.”

Features from AGU Publications

Research Spotlights

Mapping the Ocean Floor with Ancient Tides

6 May 20256 May 2025
Editors' Highlights

First Benchmarking System of Global Hydrological Models

7 May 20257 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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