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AMS Committee on Middle Atmosphere @amsmiddleatmos.bsky.social · 27/08/2026

Hello, everyone! 👋 We are excited to be online after a hiatus.This account will share research updates from our colleagues in the middle atmosphere field along with news from our committee. Follow along for updates! Know of some middle atmospherere research to feature? Tag us or send it our way! 🌎

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Simon Lee @simonleewx.com · 10/08/2026

Happy to have contributed to Chapter 5 "The Arctic" in a section led by @drahbutler.bsky.social – featuring some discussion of an unusually early final stratospheric warming for winter 2024/25 and an unusually early sudden stratospheric warming for winter 2025/26! doi.org/10.1175/BAMS...

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Science Magazine @science.org · 03/05/2026

A new Science study has revealed a hidden population of extremely small, organic-rich aerosol particles in the lower stratosphere. The findings suggest that these ultrafine aerosols are far more abundant and chemically influential than previously understood. scim.ag/4u9OFPj

scim.ag

An unrecognized mode of small particles in the lower stratosphere

Analysis of recent in situ data reveals a persistent mode of organic-rich aerosol particles in the stratosphere below 19 kilometers at nitrous oxide (N2O) > 270 parts per billion by volume, with a num...

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American Meteorological Society @ametsoc.org · 04/04/2025

Loss of the aging ACE-FTS and MLS satellite instruments will create a “data desert” around stratospheric composition, suggests a paper by @rosssalawitch.bsky.social et al in #BulletinAMS. Observation gaps may hinder understanding of climate change. Read more: bit.ly/41JORtl

Image of NASA’s Aura satellite. Photo credit: NASA.

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AMS Committee on Middle Atmosphere @amsmiddleatmos.bsky.social · 03/04/2025

CALL FOR SESSION TOPIC PROPOSALS 📣 We are excited to announce our 23rd Conference on Middle Atmosphere at the 106th AMS Annual Meeting! 🌎 We solicit input from the middle atmosphere community for session topics. Deadline to submit is APRIL 29th! Submit here: annual.ametsoc.org/2026/program... 1/

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AMS Committee on Middle Atmosphere @amsmiddleatmos.bsky.social · 03/04/2025

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Dr. Amy H Butler @drahbutler.bsky.social · 03/04/2025

The 2024-2025 polar vortex season is wrapping up with an interesting "final stratospheric warming" event. Read more on the NOAA climate.gov blog today! www.climate.gov/news-feature...

climate.gov

An early but interesting end to the 2024-25 polar vortex season

After spending much of the season with super strong wind speeds, the polar vortex bowed out two weeks ago, with the core west-to-east winds sliding off the pole. However, as it winds down for the seas...

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Simon Lee @simonleewx.com · 04/12/2024

I've made a starter pack of people who work on the stratosphere/middle atmosphere and/or often post about the stratosphere, including forecasts of the polar vortex. Please do suggest anyone I've missed – quite hard to keep up with everyone on here now! go.bsky.app/MxwzdEi

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AMS Committee on Middle Atmosphere @amsmiddleatmos.bsky.social · 11/03/2025

Hello, BlueSky! We are @ametsoc.org Committee on Middle Atmosphere. Our community focuses on the upper troposphere, stratosphere, and mesosphere and their relevance to weather and climate. Follow us for community updates! 🌎🌦️

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