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.
Research Highlights
Recent Highlights
Assessing marine warm cloud albedo susceptibility to aerosol perturbations
21 September 2023
Feingold, Graham; Zhang, Jianhao
Supported by:
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 [...]
Evaluating precipitation occurrence in the NASA-GISS ModelE3 ESM against MICRE observations
6 September 2023
Stanford, McKenna; Fridlind, Ann M.
Supported by:
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 [...]
A comprehensive analysis of mixed-phase cloud-base snow properties over an arctic ARM site
31 August 2023
Silber, Israel
Supported by:
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 [...]
Frozen hydrometeor fall velocity dependence on riming and the particle type
28 August 2023
Matrosov, Sergey
Supported by:
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 [...]
The vertical cloud structure of three landfalling polar lows as observed during the COMBLE campaign
23 August 2023
Geerts, Bart
Supported by:
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 [...]