Today 9 April 2026 Mijeong Park (ACOM) presents @ncar-acom.bsky.social seminar "Seasonal Variation in Lower #Stratospheric Water Vapor and Its Dependency on Cold Point #Tropopause #Temperature"
Time: 11am Mountain
Location: FL2-1022 (big auditorium)
#WaterVapor #SeasonalVariation #Stratosphere #Aura
Today 2 April 2026 Simone Tilmes (ACOM) presents @ncar-acom.bsky.social seminar "The importance of aerosols in the Climate System: Impacts and uncertainties of Stratospheric Aerosol Injections"
Time: 11 AM Mountain
Location: UCAR Foothills Lab 2 room 1022 (big auditorium)
Today 19 March 2026 @ncar-acom.bsky.social scientist Rebecca Buchholz presents #ACOM seminar "Fire and Atmospheric Chemistry: Impacts on Air Quality and Earth System"
Time: 11am Mountain
Location: UCAR FL2-1022 (big auditorium)
#Fire #AtmosphericChemistry #AirQuality #EarthSystem #wildfires #ENSO
Today 16 March 2026 #ACOM scientist Alan Hills presents @ncar-acom.bsky.social seminar “Experimental Science #Instrumentation Developments and Impacts at #NCAR”.
Time: 11:00–12:00 AM Mountain.
Location: UCAR FL2-1022 (large auditorium).
Today 5 March 2026 Karolina Cysneiros de Carvalho, University of California Riverside, presents @ncar-acom.bsky.social seminar "Elucidating #Gas–Particle and Air–Water Phase Exchange of #Organic Compounds Through Speciated Multiphase Observations"
Time: 11am MT
Location: UCAR FL2-1022
#TijuanaRiver
Today 26 February 2026 Paul Konopka from Forschungszentrum Jülich, Germany presents @ncar-acom.bsky.social seminar: "Lagrangian Analysis of Overshooting #Convection and Stratospheric
Moistening: Linking #DCOTSS In-Situ Observations with #Aura/MLS Data"
Location: UCAR FL2-1022
Time: 11am Mountain
Journal paper by @ncar-acom.bsky.social scientist Simone Tilmes and co-authors: "Uncertainties of #SAI efficiency and impacts depending on the complexity of the #aerosol microphysical model"
acp.copernicus.org/articles/26/...
#EarthSystemModel #StratosphericAerosolInjection #ozone #CESM #CARMA #SO2
Today 19 February 2026 Dr. Siegfried Schobesberger, University of Eastern #Finland, presents @ncar-acom.bsky.social seminar "Leveraging chemical #ionization mass #spectrometry (CIMS) to study trace gas emissions & aerosol acidity"
Time: 11am MT
Location: UCAR Foothills Lab FL2-1022
#IMS #IonMobility
Today 12 February 2026 Prof. Ellen Considine from CU Boulder presents @ncar-acom.bsky.social seminar "Data Science Innovations for Air Quality Monitoring and Policy Evaluation"
Time: 11am Mountain
Location: NSF NCAR FL2-1022
#AirQuality #PlasticWaste #TrashBurning #MonteCarlo #sensor
NASA selects STRIVE explorer for next phase.
NSF NCAR scientists contribute to mission aiming to provide comprehensive view of atmosphere:
news.ucar.edu/133057/nasa-...
Read full news release on NASA’s website:
www.nasa.gov/news-release...
Learn more about STRIVE at Univ Wash:
atmos.uw.edu/strive/
➕ Learn more about NSF NCAR RAL's Road Weather Research: https://ral.ucar.edu/solutions/benefits/predicting-hazardous-road-conditions
Smarter winter road forecasts mean safer travel for everyone.❄️🚘 Pikalert® delivers road-level hazard guidance & treatment recommendations that help transportation agencies act earlier, respond smarter, & use resources more efficiently.➕Learn more! ral.ucar.edu/solutions/be...
A high-resolution simulation illustrating ocean currents with vibrant colors. The warm currents are depicted in red and orange, centrally concentrated along the equator, while cooler currents appear in blue and green. Continents, including North America, South America, Africa, Eurasia, and Australia, are visible.
We’ve got a new dataset that’s hi-res and research ready: MESACLIP. Researchers used two supercomputers to create the MESACLIP dataset which features the Earth system in unprecedented detail, including snow cover and sea surface temperatures. Learn more: https://bit.ly/4rBK9bg
New published paper by @ncar-acom.bsky.social scientist Ren Smith at Geophysical Research Letters: "Reduction of Global #Sulfate #Aerosol Concentration and Corresponding #Radiative Effects From Recent #Chinese #Emission Reduction"
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
#emissions #SO4 #SO2
New published paper by @ncar-acom.bsky.social Postdoctoral Fellow Yingxiao Zhang at ScienceDirect: "Advancing airborne #pollen mapping with integrated ground and #satellite observations"
www.sciencedirect.com/science/arti...
#HumanHealth #RespiratoryDisease #allergic #rhinitis #HayFever #asthma
Newly published paper by @ncar-acom.bsky.social scientist Anne Smith in JGR Atmospheres: "Diurnal Variation as a Constraint on SABER Mesospheric Atomic #Oxygen"
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
#AtomicOxygen #mesosphere #thermosphere #SABERsatellite #TIMED
Today 21 January 2026 Aditi Sheshadri, Stanford University, presents @ncar-acom.bsky.social seminar: "Atmospheric gravity waves: new observations, high-resolution simulations, and data-informed methods"
Time: 2pm Mountain
Location: Foothills Lab, FL2-1001 Small Auditorium
#GravityWaves #atmosphere
Today 14 January 2026 Christiane Voigt, DLR/University Mainz, presents @ncar-acom.bsky.social seminar "From Aircraft Emissions to Climate Impact: Observational Perspectives on Contrail Formation and Mitigation".
Time: 1pm Mountain.
Location: UCAR Foothills campus FL2-1001-Small Auditorium.
#IQFPaper Impacts of Socio-Economic Development Scenarios on Long-Term Oceanic Emissions and Abundances of Atmospheric Bromoform and Dibromomethane. Published in JGR Atmospheres
Collaboration with @ncar-acom.bsky.social #ICB_CONICET
bit.ly/49vhddC
New #APARC Report No. 11 (2025) is released: "The #Hunga #Volcanic #Eruption Atmospheric Impacts Report"
aparc-climate.org/publications...
@ncar-acom.bsky.social ACOM Co-chair Bill Randel; with Jun Zhang, Simone Tilmes, Jon Starr, Mijeong Park, Ilaria Quaglia, and Martina Bramberger.
#HungaTonga
New publication by @ncar-acom.bsky.social scientist Behrooz Roozitalab at JGR Atmospheres: "Impacts of Socio-Economic Development Scenarios on Long-Term Oceanic Emissions and Abundances of Atmospheric #Bromoform and #Dibromomethane"
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
#chemistry #ozone
Today 11 Dec 2025 Zhizhao Wang, from UC Riverside/ACOM, will present @ncar-acom.bsky.social seminar at 11am:
"Reducing explicit chemical mechanisms to meet your needs: The GENOA v3 reduction framework"
Location: NSF NCAR Foothills Lab, FL2-1001 Small Seminar Room #GENOAv3 #GECKO-A #OxidantChemistry
Today Thu 4 Dec 2025 Brian Buma, Environmental Defense Fund, presents @ncar-acom.bsky.social seminar: "Addressing the positive feedback of increasing wildfire emissions due to climate change: New satellite technologies and ideas"
Location: NSF NCAR FL2-1022-Large-Auditorium
New publication by @ncar-acom.bsky.social scientist Laura Pan and co-authors: "The Asian Summer Monsoon Chemical and Climate Impact Project (#ACCLIP): An Overview"
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
ACCLIP field campaign Summer 2022 used two research aircraft to measure trace gases.
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...
