Spaceborne lidar shows that more ice than expected is leaving the tropical tropopause layer in the atmosphere.
Stratosphere/troposphere interactions
Posted inResearch Spotlights
An Extraordinary Winter in the Polar North
An exceptionally strong stratospheric polar vortex coincided with a record-breaking Arctic Oscillation pattern and ozone destruction during the 2019–2020 winter season.
Posted inResearch Spotlights
Warming in the Antarctic Stratosphere Affects Tropical Weather
Rapid temperature spikes in the stratosphere above Antarctica can influence weather and spark cyclones in the Northern Hemisphere’s tropics.
Posted inEditors' Highlights
When Chemistry Lends a Hand to Dynamics
Chemical signature and chemical transport analyses help understand the dynamics of the Asian Summer Monsoon.
Posted inNews
Banned CFC Emissions Tracked to Eastern China
A new study indicates that better atmospheric monitoring networks are needed to enforce the Montreal Protocol.
Posted inResearch Spotlights
Using Multiple Models to Improve Seasonal Forecasting
The first study to examine the ability of a suite of general circulation models to predict sudden warmings in Earth’s stratosphere highlights the potential for improving Northern Hemisphere forecasts.
Posted inEditors' Vox
Global Impacts of ENSO Reach into the Stratosphere
El Niño events have significant global impacts on weather and climate, but these reach up into the stratosphere, beyond the troposphere where most of Earth’s weather takes place.
Posted inScience Updates
The Stratosphere and Its Role in Tropical Teleconnections
Joint SPARC Dynamics and Observations Workshop; Kyoto, Japan, 9–14 October 2017
Posted inEditors' Highlights
Continental Convection Reaches New Highs
Ten years of high-resolution gridded NEXRAD radar data provide a new data set to quantify tropopause-overshooting convection over the continental United States.
Posted inEditors' Highlights
New Estimates of Ozone Transport in Extratropical Cyclones
Cross-tropopause ozone transport in midlatitude cyclones, coincident with dry air intrusions, is derived from satellite and reanalysis data organized in cyclone-centric coordinates.