An internally generated 150-day periodicity is newly identified in the Southern Hemisphere extratropical large-scale atmospheric circulation, which arises from the annular mode’s propagating regime.
jet stream
Posted inEditors' Highlights
Mesoscale Convective Systems Impact Synoptic Wave Forecast
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.
Posted inEditors' Highlights
Global Warming Intensifies Turbulence Over Northern Eurasia
A significant increasing trend of turbulence in upper atmosphere over northern Eurasia is attributed to intense anthropogenic activities.
Posted inNews
Pollution over the Tibetan Plateau Linked to Sea Ice Loss in the Arctic
New research suggests an atmospheric connection between Arctic sea ice melt and anthropogenic aerosol pollution over the Tibetan Plateau.
Posted inNews
Cleaner Air Takes Some of the Bite out of European Winters
Scientists find that reduced aerosol emissions correspond to fewer extremely cold days.
Posted inResearch Spotlights
How Will the Jet Stream Respond to Future Warming?
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.
Posted inResearch Spotlights
Including Ozone Complexities in Climate Change Projections
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
An idealized climate model suggests polar warming stabilizes the jet stream and reduces atmospheric blocking at midlatitudes.