Peter Jan van Leeuwen: Data Magician, Student of Cloud Evolution

Peter Jan van Leeuwen, a data assimilation authority and professor at Colorado State University, leverages ASR funding in a search for the little-known causal pathways that link aerosols to cloud growth.

Workshop Explores Observing Marine Aerosols and Clouds from Ships

At a recent DOE workshop, experts discussed the feasibility and scientific priorities of observing marine aerosols and clouds from commercial ships.

SAIL, One Year Later

Scientific investigations, data analysis, and model improvements unfold a year after the end of a Colorado field campaign on mountain hydrology.

2025 ARM/ASR Joint Meeting

Save the Date for the 2025 ARM/ASR Joint Meeting: March 3–6, 2025, in the Washington, D.C., area.

Champion of Science for the Underrepresented

Daniel Vrinceanu leads an effort to develop an atmospheric science program at Texas Southern University.

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

Small aerosols help decoupled cloud layers resist precipitation depletion over the North Atlantic

Low-lying marine clouds reflect more sunlight back to space compared to the dark, underlying [...] Read more

Reduced-order modeling for linearized representations of microphysical process rates

Cloud processes present a major challenge to our ability to model future climate. Here we [...] Read more

Amazon rainforest fires produce secondary ultrafine particles that may affect weather and climate

Particles in wildfire smoke can lower air quality and harm human health. Smoke aerosols can also [...] Read more

Recent Publications

Evolution of refractory black carbon mixing state in an urban environment

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Evaluation of a New Approach for Entrainment and Detrainment Rate Estimation

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Impacts of Stochastic Coalescence Variability on Warm Rain Initiation Using Lagrangian Microphysics in Box and Large-Eddy Simulations

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Upcoming Meetings

19th International Conference on Clouds and Precipitation (ICCP)

14 July 2024 - 19 July 2024

The 19th International Conference on Clouds and Precipitation (ICCP) will be held from July 14 to [...] Read more

U.S. Quantum Information Science Summer School

15 July 2024 - 26 July 2024

Oak Ridge National Laboratory will host the second US QIS Summer School facilitated by the US [...] Read more

American Meteorological Society’s 21st Conference on Mountain Meteorology

22 July 2024 - 26 July 2024

The 21st Conference on Mountain Meteorology, taking place July 22 to 26, 2024 in Boise, Idaho, is [...] Read more