Research Highlights

 

Members of the Atmospheric Radiation Measurement (ARM) user facility’s 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

Subcloud convergence lines: properties and implications on deep-convection initiation

27 May 2024

Kirshbaum, Daniel

Supported by: ARM ASR

Research area: Vertical Velocity

Boundary-layer convergence lines (CLs) and their associated subcloud updrafts are responsible for many, if not most, deep-convection initiation events in the continental USA. To quantify the morphology and strength of CLs, and to compare them to ordinary turbulent circulations in the boundary layer, we develop two methods of CL quantification [...]

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Constraining effects of aerosol-cloud interaction by accounting for coupling between cloud and land

26 May 2024

Su, Tianning; Li, Zhanqing

Supported by: ARM ASR

Research area: Cloud-Aerosol-Precipitation Interactions

Aerosol-cloud-interaction (ACI) remains a source of uncertainties in climate forcing, stemming partially from a paucity of in situ measurements of aerosol and/or cloud condensation nuclei at the cloud base. Most observation analyses of the ACI rely either on aerosol column loading measured by space-borne and ground-based sensors that would be valid under well-mixed conditions, which is usually the [...]

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Aerosol-cloud interactions in the eastern North Atlantic

14 May 2024

Ghate, Virendra Prakash

Supported by: ARM ASR

Research area: Aerosol Processes

Water vapor condenses to form cloud droplets on aerosols, small particles or droplets suspended in the air that are commonly called cloud condensation nuclei (CCN). The mechanisms responsible for changes in CCN concentrations over the open oceans are not fully known. The study characterizes drivers of CCN concentrations over the [...]

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