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jet stream

Three maps overlain with analysis of the wave amplitude error metric on 2, 4, and 6 day forecasts.
Posted inEditors' Highlights

Mesoscale Convective Systems Impact Synoptic Wave Forecast

by Minghua Zhang 23 February 20236 March 2023

Scientists provide a process-level understanding of how mesoscale convective systems modify the evolution of the large-scale Rossby wave packet downstream and the jet stream.

Map of northern Eurasia showing long-term trend of wintertime Turbulence Index 1
Posted inEditors' Highlights

Global Warming Intensifies Turbulence Over Northern Eurasia

by Jonathan H. Jiang 24 February 202128 February 2023

A significant increasing trend of turbulence in upper atmosphere over northern Eurasia is attributed to intense anthropogenic activities.

Satellite image of the Himalayas
Posted inNews

Pollution over the Tibetan Plateau Linked to Sea Ice Loss in the Arctic

by Michael Allen 7 October 202028 February 2023

New research suggests an atmospheric connection between Arctic sea ice melt and anthropogenic aerosol pollution over the Tibetan Plateau.

A clean two-lane road leads into a sunny winter day in Tromsø, Norway.
Posted inNews

Cleaner Air Takes Some of the Bite out of European Winters

Tim Hornyak, Science Writer by Tim Hornyak 26 February 202028 February 2023

Scientists find that reduced aerosol emissions correspond to fewer extremely cold days.

Satellite image of the United States
Posted inResearch Spotlights

How Will the Jet Stream Respond to Future Warming?

by Terri Cook 20 May 201928 February 2023

Simulations that test different approaches to modeling radiation suggest a commonly used scheme fails to fully capture changes in midlatitude circulation associated with climate change.

Incorporating complex ozone chemistry in climate models can improve scientific understanding of the jet stream’s behavior.
Posted inResearch Spotlights

Including Ozone Complexities in Climate Change Projections

by B. Bane 22 March 201728 February 2023

A simplified view of ozone chemistry can cause climate models to overestimate the response of jet streams to increasing greenhouse gases.

Posted inResearch Spotlights

Polar Warming Makes the Jet Stream Stable, Not Wavy or Blocked

by C. Schultz 3 February 201528 February 2023

An idealized climate model suggests polar warming stabilizes the jet stream and reduces atmospheric blocking at midlatitudes.

Features from AGU Journals

RESEARCH SPOTLIGHTS
Geophysical Research Letters
“Neural Networks Map the Ebb and Flow of Tiny Ponds”
By Sarah Derouin

EDITORS' HIGHLIGHTS
Community Science
“Collaboration Helps Overcome Challenges in Air Quality Monitoring”
By Muki Haklay

EDITORS' VOX
Reviews of Geophysics
“What We Know and Don’t Know About Climate Tipping Elements”
By Seaver Wang

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