Research Highlights

 

Members of the Atmospheric Radiation Measurement (ARM) user facility‚Äôs science team are major contributors to radiation and cloud research. Scientists and investigators using ARM publish about 150 peer-reviewed journal articles per year, and ARM data are used in many studies published by other scientific organizations. These documented research efforts represent tangible evidence of ARM’s contribution to advances in almost all areas of atmospheric radiation and cloud research.

Recent Highlights

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

20 February 2020

Romps, David

Supported by: ASR

Research area: Cloud Processes

In this study, cloud-resolving simulations are shown to exhibit a dramatic increase in equilibrium climate sensitivity (ECS) at higher temperatures, due to both an increase in forcing and a decrease in the feedback parameter. In addition, it is found that the direct effect of carbon dioxide offsets a quarter of [...]

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Sensitivity of simulated deep convection to a stochastic ice microphysics framework

6 February 2020

Stanford, McKenna; Morrison, Hugh Clifton

Supported by: ARM ASR

Research area: Cloud Processes

Observations show that atmospheric ice particle properties vary at different times and locations even for similar cloud conditions and thermodynamic environments. Yet, the way ice particles are represented in weather and climate models typically does not account for this variability. Herein, we develop a stochastic ice microphysics parameterization that includes [...]

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Estimation of pressure perturbations needed to explain contact nucleation

21 January 2020

Yang, Fan; Vogelmann, Andrew M.

Supported by: ASR

Research area: Cloud Processes

The pressure perturbation hypothesis, which arose from recent lab experiments, has been proposed to explain the long-standing mystery of contact nucleation. However, validating the hypothesis is extremely difficult as it would require measuring pressure perturbations caused by the impact of ice nucleating particles on supercooled droplets. Instead, we improve understanding [...]

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