Smoke aerosols from large wildfires are the perfect reaction surface for chlorine chemicals, speeding their transformation from ozone-friendly forms to reactive ones.
stratosphere
Posted inResearch Spotlights
Monitoreando el agua en la columna eruptiva masiva del volcán de Tonga
La reciente erupción del volcán Hunga Tonga-Hunga Ha’apai arrojó aerosoles de sulfatos y una cantidad nunca antes vista de vapor de agua a la estratosfera.
Posted inResearch Spotlights
Tracking Water in the Tongan Volcano’s Massive Eruption Plume
The recent eruption of the Hunga Tonga–Hunga Ha‘apai volcano blasted sulfate aerosols and a record-breaking amount of water vapor into the stratosphere.
Posted inEditors' Highlights
Modeling Stratosphere-Troposphere Coupling in a Changing Climate
Climate models have disagreed on the future evolution of the stratospheric polar vortex and links to the troposphere, but a new study revisits this problem with state-of-the-art climate models.
Posted inEditors' Highlights
Simulating Surface Impacts of Stratospheric Sudden Warmings
New evaluations of climate model simulations show how the stratosphere polar vortex couples to surface weather.
Posted inNews
Australian Wildfires Linked to Ozone Layer Depletion
New research shows that the Black Summer bushfires damaged the ozone layer, eliminating a decade’s worth of progress.
Posted inEditors' Highlights
New Insights on Stratospheric Circulation from Fluorine Tracers
Stratospheric fluorine species have accumulated faster in the Northern Hemisphere over the past two decades reflecting interhemispheric differences in the Brewer-Dobson transport circulation.
Posted inResearch Spotlights
Convective Transport Explains “Missing” Ice near the Tropical Tropopause
Spaceborne lidar shows that more ice than expected is leaving the tropical tropopause layer in the atmosphere.
Posted inEditors' Vox
Global Effects of Disruptions to the Stratospheric Circulation
Major disruptions to the stratospheric circulation have far-reaching effects, including increased likelihood of snowstorms, growth of the ozone hole, and interference in global telecommunications.
![Two plots showing percent changes in TIME-GCM zonally averaged [O+] and [H+] as a function of latitude and altitude in the Northern Hemisphere between the “disturbed” and “pre-disturbance” time periods in 2012–2013](https://i0.wp.com/eos.org/wp-content/uploads/2020/12/2020JA028331-Figure-12-top-row-with-legend-sized-for-Eos.png?resize=820%2C615&ssl=1)
Posted inEditors' Highlights
Stratospheric Weather Impacts Light Species at Great Heights
Sudden stratospheric warmings in the high latitude wintertime can drive changes in light species (H, He and O) all the way though the thermosphere, likely influencing ion densities in the exosphere.