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Bjorn Stevens

Photo of a cloud.
Posted inEditors' Highlights

Tropical Congestus Clouds Explained by Water Vapor Spectroscopy

by Bjorn Stevens 25 February 202524 February 2025

A new study demonstrates how the abundance of congestus clouds in the tropics can be explained by the water molecule’s discerning appetite for infrared radiation.

Two graphs from the paper.
Posted inEditors' Highlights

Measuring Link Between the Chemistry and Physics of the Atmosphere

by Bjorn Stevens 24 January 202424 January 2024

A new study sheds light on the coupling between the chemical composition and the physical properties of the atmosphere.

Global map showing upper-level atmospheric winds
Posted inEditors' Highlights

Better Resolution Might Unlock the Mystery of Storms

by Bjorn Stevens 13 March 202324 March 2023

Climate models have many persistent and systematic biases, but a new study shows that allowing for a physical rather than statistical representation of energy transport reduces one of them.

Posted inEditors' Highlights

A Theory of Squall Lines

by Bjorn Stevens 9 January 20239 January 2023

About 50 years ago, vorticity thinking helped unveil basic properties of squall lines. Zhang now provides a closed theory, demystifying one of nature’s most important forms of convective organization.

Posted inEditors' Highlights

Outsourcing the Work of Industrial Climate Science

by Bjorn Stevens 15 December 202210 April 2023

Climate science is increasingly structured in ways that subcontract repetitive activities to graduate students. Here, early career researchers raise the issue and explore some tradeoffs.

Posted inEditors' Highlights

Measuring the Microstructure of Snow from Space

by Bjorn Stevens 15 December 20224 January 2023

There is more to snow than flakes. Microwave measurements are shown to be capable of illuminating the microstructure of snow in ways that will improve our ability to monitor snow fields from space.

Posted inEditors' Highlights

Ice Begets Ice in the Clouds of the Southern Ocean

by Bjorn Stevens 17 March 202217 August 2022

Poorly understood ice multiplication processes, not aerosols, may determine the microphysical properties of climatologically important clouds over the Southern Ocean.

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

Heat and Pollution Events Are Deadly, Especially in the Global South

14 May 202514 May 2025
Editors' Highlights

Resilient Solutions Involve Input and Data from the Community

14 May 202514 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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