The Puzzle of Low Clouds

One researcher’s early fascination for computers and severe weather led to confronting the uncertainties of modeling shallow clouds.

ARM Instruments, ASR Collaboration

Adam Theisen leads ARM into a new era of data gathering and checks in with ASR along the way.

DOE’s SCGSR Program Creates Opportunities for Graduate Students

DOE's SCGSR program is accepting applications for the 2020 Solicitation 1. The deadline is 5:00 pm Eastern Time on Wednesday, May 6, 2020.

Jeff Stehr Joins ASR Program Management Team

With a diverse research background that includes atmospheric aerosols and air quality, Jeff Stehr joined DOE as an ASR program manager in late November 2019.

Roger Marchand: Investigator of Low Clouds

In both the northern and southern hemispheres, one observationalist aims to improve the way clouds are represented in models.

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

Climate sensitivity and the direct effect of carbon dioxide in a limited-area cloud-resolving model

In this study, cloud-resolving simulations are shown to exhibit a dramatic increase in [...] Read more

Sensitivity of simulated deep convection to a stochastic ice microphysics framework

Observations show that atmospheric ice particle properties vary at different times and locations [...] Read more

Estimation of pressure perturbations needed to explain contact nucleation

The pressure perturbation hypothesis, which arose from recent lab experiments, has been proposed [...] Read more

Recent Publications

Calculation of supersaturation maximum and droplet concentration at cloud boundaries

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Role of Maritime Continent Land Convection on the Mean State and MJO Propagation

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A new method to retrieve the diurnal variability of planetary boundary layer height from lidar under different thermodynamic stability conditions

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Upcoming Meetings

5G Enabled Energy Innovation Workshop (5GEEIW)

10 Mar 2020 - 12 Mar 2020

Westin Michigan Avenue Hotel, Chicago. Emerging advanced wireless networks such as fifth-generation [...] Read more

Improvement and Calibration of Clouds in Models

16 Jun 2020 - 19 Jun 2020

The goal of this workshop is to discuss and share the latest improvements of atmospheric [...] Read more

2020 ARM/ASR Joint Meeting

22 Jun 2020 - 26 Jun 2020

Join your ARM and ASR colleagues at the June 2020 ARM/ASR joint meeting in Rockville, Maryland. The [...] Read more