Research Highlights

 

Highlights will be written for high-level accomplishments and published journal articles of ASR research. Each ASR principal investigator (PI) is expected to submit at least one highlight per fiscal year.

Recent Highlights

Assessing marine warm cloud albedo susceptibility to aerosol perturbations

21 September 2023

Feingold, Graham; Zhang, Jianhao

Supported by: ASR

Research area: Cloud-Aerosol-Precipitation Interactions

The sensitivity of cloud brightness (ability to cool the Earth through reflecting sunlight) to the amount of aerosol (tiny particles in the atmosphere) in the marine boundary layer is quantified using spaceborne observations of clouds and radiation. When clouds are sorted by their amount of water condensate and number of [...]

Read more

Evaluating precipitation occurrence in the NASA-GISS ModelE3 ESM against MICRE observations

6 September 2023

Stanford, McKenna; Fridlind, Ann M.

Supported by: ARM ASR

Research area: Cloud-Aerosol-Precipitation Interactions

Precipitation is the primary sink of cloud condensate in the extratropics, but quantifying the frequency at which clouds precipitate in both models and observations is challenged by differences in space- versus land-based observing platforms, instrument sensitivity, detection algorithms, and model-observation comparison methodologies. A year of profiling instrumentation from the ARM [...]

Read more

A comprehensive analysis of mixed-phase cloud-base snow properties over an arctic ARM site

31 August 2023

Silber, Israel

Supported by: ARM ASR

Research area: Cloud Processes

By applying an inverse model, which leverages a Markov Chain Monte Carlo algorithm, to a long-term (~7.5 years) ARM radar and lidar data set from the Utqiagvik, North Slope of Alaska site, mixed-phase cloud-base ice precipitation (snow) properties were robustly retrieved. Results show intriguing links between various thermodynamic and ice [...]

Read more

Frozen hydrometeor fall velocity dependence on riming and the particle type

28 August 2023

Matrosov, Sergey

Supported by: ARM ASR

Research area: Cloud Processes

Hydrometeor terminal fall velocity information is important for weather and climate studies as it influences cloud life times and the water cycle balance, and it also affects the vertical transport of moisture in the atmosphere.  Additionally, the knowledge of these velocities is important for development of quantitative precipitation estimation methods [...]

Read more

The vertical cloud structure of three landfalling polar lows as observed during the COMBLE campaign

23 August 2023

Geerts, Bart

Supported by: ARM ASR

Research area: Atmospheric Thermodynamics and Vertical Structures

The vertical structure of three polar lows is described using profilingradar, lidar, and passive remote sensors deployed at a coastalsite in northern Norway. These polar lows were observed by chance as they made landfall over the first ARM Mobile Facility while it was deployed in the Cold-Air Outbreaks in the [...]

Read more