Exploring the Impact of Chemistry on Air Quality and Climate

News

Scientists propose guidelines for solar geoengineering research

Aug 27, 2024

Scientists for several years have studied the theoretical effectiveness of injecting sulfur dioxide into the stratosphere to reflect heat from the Sun and offset Earth’s warming temperatures. But they also want to ensure that the solar geoengineering approaches being studied are evaluated for their technical feasibility, as well as their cooling potential and possible ecological and societal side effects.

Artificial climate control might become ineffective

Jun 28, 2024

One regional geoengineering proposal for alleviating the extreme heat effects of global warming, the brightening of marine clouds to reflect more solar energy to space over different limited areas, could work in present-day conditions but may become ineffective in the future, according to new research.

Asian Monsoon Lofts Ozone-Depleting Substances to Stratosphere

Apr 30, 2024

Powerful monsoon winds, strengthened by a warming climate, are lofting unexpectedly large quantities of ozone-depleting substances high into the atmosphere over East Asia, new research shows.

Publication Highlight

Figure 1 Averaged GEMS NO2 TrC for June 2023 showing the full extent of the instrument FOR.

Edwards, D. P., Martínez-Alonso, S., Jo, D. S., Ortega, I., Emmons, L. K., Orlando, J. J., Worden, H. M., Kim, J., Lee, H., Park, J., and Hong, H.: Quantifying the diurnal variation in atmospheric NO2 from Geostationary Environment Monitoring Spectrometer (GEMS) observations, Atmos. Chem. Phys., 24, 8943–8961, https://doi.org/10.5194/acp-24-8943-2024, 2024.

Aug 16, 2024

Figure 1 Averaging kernel (AK) rows for MOPITT retrieval types TIR only, NIR only, and multispectral TIR+NIR. Global average of AKs during July and August 2018 are shown.

Tang, W., Gaubert, B., Emmons, L., Ziskin, D., Mao, D., Edwards, D., Arellano, A., Raeder, K., Anderson, J., and Worden, H.: Advantages of assimilating multispectral satellite retrievals of atmospheric composition: a demonstration using MOPITT carbon monoxide products, Atmos. Meas. Tech., 17, 1941–1963, https://doi.org/10.5194/amt-17-1941-2024, 2024.

Jul 17, 2024

640px-Green_paddy_fields_under_heavy_clouds_at_dusk_in_Vang_Vieng,_Laos.jpg

Pan, L. L., Atlas, E. L., Honomichl, S. B., Smith, W. P., Kinnison, D. E., Solomon, S., Santee, M. L., Laube, J. C., Wang, B., Ueyama, R., Bresch, J. F., Hornbrook, R. S., Apel, E. C., Hills, A. J., Treadaway, V., Smith, K., Schauffler, S., Donnelly, S., Hendershot, R., . . . Newman, P. A. (2024). East Asian summer monsoon delivers large abundances of very short-lived organic chlorine substances to the lower stratosphere. Proceedings of the National Academy of Sciences, 121(12), e2318716121. https://doi.org/10.1073/pnas.2318716121.

Jun 27, 2024

Feature

2024 OMI-TROPOMI Workshop
The OMI-TROPOMI workshop held from June 3 - 6 at the NCAR ACOM Foothills laboratory was very successful.

Events and Seminars

Events

Please review the ACOM Seminar Series for our schedule of scientific lectures. Recordings are posted on the ACOM YouTube Channel.

Next All-Staff Report

September 11, 2024: Julia Lee-Taylor, Alan Hills, Brett Palm.

ACCLIP PI Laura Pan presenting the science behind ACCLIP at Media Day, August 5, 2022. (Ren Smith)

All-Staff Reports

Science, engineering, and administrative discussions held every other Wednesday at 11:00 AM.

Workshops Hosted by ACOM

Researchers gather at UCAR labs in Boulder, Colorado, USA.

3D animation of GV research aircraft sampling air parcels. Credit: Carl Drews and Ren Smith.

Recent Publications

Scientific papers and presentations hosted by the NCAR Library on our OpenSky public access repository.

Upcoming Events

Opportunities for Collaboration

Opportunities and Partnerships

ACOM conducts collaborative research focusing on two major scientific challenges, Air Quality Prediction Research and Interactions between Chemistry and the Climate/Weather System. The work is conducted in partnership with other entities within NCAR, and with other members of the wider atmospheric chemistry community.

Model grids used in the spectral element version of the NCAR Community Atmosphere Model (CAM-SE).

Multi-Scale Infrastructure for Chemistry Modeling (MUSICA)

Field Missions and Data Archive

Data collection in the field.

Chemical Forecasts

Generated daily with WACCM, CAM-Chem, and WRF-Chem.

Research Highlights

Community Hub

ACOM Visitor Program

Partnerships with the wider science community are at the heart of the NCAR mission, and are an important component of all research conducted within ACOM. Strong collaborations with University groups are in particular paramount to the NCAR and ACOM mission.

SOARS

Significant Opportunities in Atmospheric Research and Science

Visiting ACOM - Travel Information

Current Visitors