Research Highlights

 

Members of the ARM Climate Research Facility’s science team are major contributors to radiation and cloud research. Scientists and investigators using ARM facilities publish about 150 refereed journal articles per year, and ARM Facility data are used in many studies published by other scientific organizations. These documented research efforts represent tangible evidence of the ARM Facility’s contribution to advances in almost all areas of atmospheric radiation and cloud research.

Recent Highlights

Ice formed by contact freezing: Pressure matters, not just temperature

12 February 2018

Shaw, Raymond A

Supported by: ASR

Research area: Cloud Processes

The freezing of supercooled water can be triggered at unusually high temperatures, by agitating and deforming the water surface. It has long been observed that "contact" of supercooled water with a dry aerosol particle can cause efficient freezing, and the new observations suggest that this may be due to pressure [...]

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Small Particles Play Large Role in Tropical Thunderstorms

5 February 2018

Fan, Jiwen

Supported by: ARM ASR

Research area: Aerosol Properties

Aerosol-cloud interactions remain the largest uncertainty in climate projections. Ultrafine aerosol particles—less than 50 nanometers wide—can be abundant in the troposphere, but are conventionally considered too small to affect cloud formation. A unique set of observations from the Amazon allowed scientists, to study the role of aerosols in tropical storm [...]

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Accurately quantifying gas/particle partitioning in environmental chambers despite wall losses

5 February 2018

Jimenez, Jose-Luis

Supported by: ASR

Research area: Aerosol Processes

For decades, environmental “smog” chambers have been used to determine how much secondary organic aerosol (SOA) can form from certain gaseous emissions and to study its chemistry. But in recent years it has become clear that gases can stick to the walls of the bag, which can change the results [...]

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