Attention: The 2025 ARM/ASR joint meeting website is now live! Poster abstracts are due Monday, January 13.

For Warm Boundary Layer Processes, an ASR Working Group

A confederation of experts considers the latest science on the workings of boundary layer processes.

To Study Aerosols, an ASR Working Group

New particle formation, aerosol aging, and a long list of related issues captivate a changing cast of collaborative experts.

ASR FY2025 Funding Opportunity Announcement

DOE will provide $6 million in new research grants for Atmospheric System Research (ASR) program science.

2025 ARM/ASR Joint Meeting

Prepare for the 2025 ARM/ASR Joint Meeting: March 3–6, 2025, in Rockville, Maryland.

Ahead in the Clouds

ASR scientist builds custom chamber helping uncover how aerosol particles and clouds contribute to Earth’s changing climate.

The U.S. Department of Energy’s Atmospheric System Research program advances process-level understanding of the key interactions among aerosols, clouds, precipitation, radiation, dynamics, and thermodynamics, with the ultimate goal of reducing the uncertainty in global and regional climate simulations and projections.

Research Highlights

Aerosol size distribution properties associated with cold-air outbreaks in the Norwegian Arctic

We determine the characteristics of the aerosol size distribution associated with cold-air [...] Read more

ARM observations help diagnosis and validation of newly released high-resolution versions of E3SM

With the rapidly increasing resolution of global and regional model simulations, how can we best [...] Read more

High-resolution shallow cumulus cloud observations over north Alabama

To constrain land surface energy budget and study convection triggering, it is critical to have [...] Read more

Recent Publications

The influence of cloud cover on the reliability of satellite-based solar resource data

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Direct measurement of the growth of small particles in ambient air using captive aerosol chambers

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Use of physics to improve solar forecast: Part Ⅲ, impacts of different cloud types

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Upcoming Meetings

105th American Meteorological Society Annual Meeting

12 January 2025 - 16 January 2025

The 105th American Meteorological Society Annual Meeting will take place from 12 to 16 January 2025 [...] Read more

CAPE-k Student Workshop

2 February 2025 - 7 February 2025

The Atmospheric Radiation Measurement (ARM) user facility will co-host a student workshop with the [...] Read more

2025 Joint Atmospheric Radiation Measurement (ARM) User Facility/ASR Principal Investigators Meeting

3 March 2025 - 6 March 2025

The Atmospheric Radiation Measurement (ARM)/Atmospheric System Research (ASR) Joint User [...] Read more