NSF NCAR Atmospheric Chemistry Observations & Modeling

Pilots expertly flew the NSF NCAR C-130 during both daytime and nighttime flights. (Image: Britt Stephens/NSF NCAR)

Taking to the skies to track urban air quality
NSF NCAR facilitates airborne field campaign over New York
news.ucar.edu/133046/takin...
Read more at NSF NCAR & UCAR News about the C-130 research aircraft flying above the skyscrapers of Manhattan.
#GOTHAAM field campaign

How can researchers collaborate with communities to prepare for and adapt to increasingly extreme weather? In the latest Science in the Spotlight webinar, a new Explorer Series spin-off, NSF NCAR scientists Alice DuVivier and Laura Landrum will explore this question.

Today Nov 4, 2025 at 1pm; Morgan Goodwin and Jeff Overbeek, from Planetary Sunshade Foundation, present joint CGD/ACOM seminar:
Reflecting Sunlight from Space: Unique Capabilities for Climate Intervention
Location: NSF NCAR Foothills Lab 2-1022 Large Auditorium
www.cgd.ucar.edu/events/semin...

@ncar-ucar.bsky.social @SC25 Conference: See how we're powering Earth Systems Science 🌎 . Check out Booth #4032 schedule to meet our Experts, find out about staff engagement, hear some intern presentations, and learn more about the work we do. See you in 2 weeks! www.cisl.ucar.edu/events/nsf-n...

NSF NCAR C-130 research aircraft.

Manhattan at night from the Empire State Building.

We are hearing exciting research reports from @ncar-acom.bsky.social and @ncar-eol.bsky.social staff returning from #GOTHAAM field campaign in New York City! Most of the research flights were at night, measuring atmospheric chemistry over the metro area.

www.eol.ucar.edu/field_projec...

Hurricane Melissa heads northeastward toward Bermuda after crossing the Bahamas.

The storm is currently Category 2 strength.

New publication by @ncar-acom.bsky.social scientist Wenfu Tang in the Bulletin of the American Meteorological Society: "The UCAR Africa Initiative: Recent insights, challenges, and opportunities to foster collaborative research for environmental sustainability"
journals.ametsoc.org/view/journal...

Today 2 Oct 2025 at 11am MT Aaron Match (Cornell University) presents @ncar-acom.bsky.social seminar "Simple models of tropical ozone and its response to surface warming".

Location: FL2-1001 Small Auditorium.

Full list of upcoming ACOM seminars:
www2.acom.ucar.edu/seminars

Logo: Greater New York Oxidant Trace Gas Halogen and Aerosol Airborne Mission

NSF @ncar-acom.bsky.social welcomes staff back from #GOTHAAM field campaign in New York City! They worked together with @ncar-eol.bsky.social staff mostly on night shift. Excited to see preliminary results at research reports! Watch this space for further photos.
www.eol.ucar.edu/field_projec...

TROPOMI SO2 detection in the vicinity of Etna

On 2025-09-22 #TROPOMI has detected an enhanced SO2 signal of 11.28DU at a distance of 3.7km to #Etna. Other nearby sources: #Stromboli. #DLR_inpuls #S5p #Sentinel5p #TROPOMI #SO2LH

ACOM Director Ralph Cicerone in 1989.

Ralph Cicerone Fellowship Lecture in ACOM:
Today 28 Aug 2025 at 11 am (MT), Shane Marie A. Visaga (Univ of Wisconsin-Madison) presents:
"Air quality impacts of Maritime Continent fires using MUSICAv0 with peat implementation in FINNv2.5"
Location: UCAR Foothills Lab 2-1022 Large Auditorium

Field campaign #GOTHAAM sends the NSF NCAR C-130 research aircraft flying low over New York City area, collecting air quality data through Aug 31, 2025.
news.ucar.edu/133033/nsf-n...
GOTHAAM involves NCAR labs @ncar-eol.bsky.social and @ncar-acom.bsky.social :
www.eol.ucar.edu/news/skimmin...

WACCM chemical forecast.

WRF-Chem chemical forecast.

WACCM (global) and WRF-Chem (CONUS) forecasts for tomorrow (Sat, May 31, 2025) late morning show similar smoke plumes from wildfires in Saskatchewan and Manitoba entering US states of North Dakota and Minnesota.
WACCM: www.acom.ucar.edu/waccm/foreca...
WRF-Chem: www.acom.ucar.edu/firex-aq/for...

Smoke to pour into the US as Canada wildfires force province’s largest evacuation in ‘living memory’ | CNN Massive wildfires burning out of control in western and central Canada are forcing thousands to flee. The blazes are also beginning to send hazardous smoke toward major cities in the United States.

www.cnn.com/2025/05/29/w...

See also the WACCM Chemical Map, and Show chemical: CO fires
www.acom.ucar.edu/waccm/map.sh...

Our next Explorer Series event combines art and science to explore the changes in Arctic marine ecosystems. Join us on June 4 at 7PM MST to hear more from Courtney Payne and NSF NCAR’s Anna Lindemann about the intersection of art & science. Reserve your spot: www.eventsquid.com/event.cfm?id...

Warm congratulations to @ncar-acom.bsky.social Director Pieternel Levelt, selected as member of the Royal Netherlands Academy of Arts and Sciences (KNAW)!
news.ucar.edu/133023/piete...
Dr. Levelt and 16 other members will be officially installed at #KNAW on Sept 29, 2025:
www.knaw.nl/en/news/acad...

A Leap Forward in Wildfire Prediction - Integrating the Community Fire Behavior Model into the Unified Forecast System (UFS) for next-generation fire-atmosphere simulations

A Leap Forward in Wildfire Prediction 🔥 Integrating the Community Fire Behavior Model into the Unified Forecast System (UFS) for next-generation fire-atmosphere simulations 🔥 Learn more about this exciting collaboration from NOAA & NSF NCAR: ral.ucar.edu/news/leap-fo...

Today (Tues, 29 April 2025) at 3:30–4:30 PM Mountain, Mike Lawler of CIRES/NOAA will present joint EOL/ACOM Seminar: "Meteoric-sulfuric particles formed in the winter polar vortex: their size, composition, and fate."
Location: In person at NCAR FL2-1022
@ncar-acom.bsky.social @ncar-eol.bsky.social

On Thursday, April 17 2025 11AM–12PM MT, at @ncar-ucar.bsky.social Foothills Lab 2-1022 (large auditorium), speaker Walter Hannah (Lawrence Livermore National Laboratory) will present @ncar-acom.bsky.social seminar “Improving the QBO in E3SM.”

TROPOMI SO2 detection in the vicinity of Etna

On 2025-04-08 #TROPOMI has detected an enhanced SO2 signal of 2.88DU at a distance of 439.0km to #Etna. #DLR_inpuls #S5p #Sentinel5p #TROPOMI #SO2LH

Today (March 27, 2025) at 11 am (MT) Yunqian Zhu, from the Cooperative Institute for Research in Environmental Sciences (CIRES), CU Boulder, presents @ncar-acom.bsky.social seminar:
Title: The Evolution and Impact of the 2022 Hunga Eruption
Location: UCAR Foothills FL2-1022 Large Auditorium

📣🔥 New wildfire study: Blazes that cross into neighborhoods are much more deadly than remote wildfires, according to a new study led by NSF NCAR. In fact, fires that burn in the wildland-urban interface are 3x more likely to cause annual premature deaths.

Learn more: bit.ly/4hhsdwZ

NSF NCAR Atmospheric Chemistry Observations & Modeling (@ncar-acom) is pleased to join the Bluesky scientific community! We look forward to exchanging information with our colleagues on scientific events, learning about recent publications, and discussing atmospheric chemistry.