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Kristopher B. Karnauskas

World map showing sea surface temperature with color.
Posted inEditors' Highlights

Three Studies Point to El Niño as Key to 2023 Record Global Heat

by Kristopher B. Karnauskas 28 January 202528 January 2025

Three recent studies reveal how the interplay between El Niño and long-term global warming drove the record-breaking global temperatures of 2023.

Photo of a huge wave caused by a calving glacier.
Posted inEditors' Vox

Steering Geophysical Research Letters Forward: A Focus on Excellence and Global Inclusivity

by Kristopher B. Karnauskas 23 January 202523 January 2025

Meet the new Editor-in-Chief of Geophysical Research Letters and discover his plans to shape the journal’s role in advancing the Earth and space sciences.

A stylized illustration shows rain falling from a tall storm cloud over part of the ocean surface in the left of the image, and the sun shining on the right side of the image.
Posted inFeatures

Patterns of Surface Warming Matter for Climate Sensitivity

by Maria Rugenstein, Mark Zelinka, Kristopher B. Karnauskas, Paulo Ceppi and Timothy Andrews 31 October 202331 October 2023

Location, location, location. Surface temperature patterns play a fundamental role in Earth’s energy budget.

Graph from the paper.
Posted inEditors' Highlights

Arctic Salinity Pushes the AMOC Swing

by Kristopher B. Karnauskas 3 August 20222 July 2024

A model of the Atlantic Meridional Overturning Circulation (AMOC), pioneered by Henry Stommel over 60 years ago, can exhibit realistic cyclic behavior if the role of Arctic salinity is included.

Map showing differences in sea surface salinity between two experiments
Posted inEditors' Highlights

Salinity from Space Improves El Niño Forecasts

by Kristopher B. Karnauskas 17 July 201916 December 2021

Assimilating satellite observations of ocean surface salinity significantly improves coupled model forecasts of El Niño.

Posted inEditors' Vox

Hurricanes and the Sea: It Takes Two to Tango

by Kristopher B. Karnauskas and Lei Zhou 10 May 201816 December 2021

A new special issue of JGR: Oceans reveals the rich relationship between the ocean and tropical cyclones.

Posted inEditors' Highlights

Is Global Warming Suppressing Canonical El Niño?

by Kristopher B. Karnauskas 16 November 201714 February 2023

A study explores the relationship between diverse El Niño events and the background state of the tropical Pacific.

Posted inEditors' Vox

They Got to “Ask-Me-Anything.” So, What Did They Want to Know?

by Kristopher B. Karnauskas 6 June 201616 February 2023

On behalf of JGR: Oceans, I consented to a Reddit Science AMA. What did an anonymous public want to learn about oceanography and climate science? More importantly, what can we learn from them?

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

The Uncertain Fate of the Beaufort Gyre

13 May 202513 May 2025
Editors' Highlights

Beyond Up and Down: How Arctic Ponds Stir Sideways

13 May 20257 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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