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

Tailoring a convection-cloud chamber for optimizing droplet collisions

12 March 2024

Wang, Aaron; Ovchinnikov, Mikhail

Supported by: ASR

Research area: Cloud-Aerosol-Precipitation Interactions

Droplet collision-coalescence plays an important role in the initial formation of drizzle-sized droplets, yet quantitative understanding of this process in turbulent clouds is lacking. A convection-cloud chamber that produces a turbulent cloud between a warm moist bottom and a cold moist top can provide a controlled environment for laboratory studies [...]

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Biomass burning gases react within clouds, forming secondary organic aerosols

11 March 2024

Ovchinnikov, Mikhail; Shrivastava, Manishkumar

Supported by: ARM ASR

Research area: Aerosol Processes

Thousands of tiny particles in the atmosphere unseen by the naked eye scatter and absorb solar radiation and seed clouds. A lot of these particles are not directly emitted but are formed by reactions of gases with atmospheric oxidants in multiple phases, including gas-phase and liquid water contained in clouds [...]

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Decoding the dialogue between clouds and land through boundary-layer processes

8 March 2024

SU, Tianning; Li, Zhanqing

Supported by: ARM ASR

Research area: Cloud Processes

Based on a series of previous research, this article revisits and challenges the conventional understanding of how clouds form and engage with the Earth's surface. This exploration discusses the process-level mechanism of the complex interactions within the atmospheric boundary layer.

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Key deficiencies of CESM2 in simulating stratocumulus evolution under cold versus warm advection

28 February 2024

Li, Zhanqing; Zhang, Haipeng

Supported by: ASR

Research area: Cloud Processes

The influence of temperature advection (Tadv) on stratocumulus clouds (Sc) is highly uncertain in climate models. Previous studies have demonstrated distinct impacts of physical processes on cloud properties under contrasting Tadv conditions: cold-air advection (CADV) and warm-air advection (WADV). Accurate representation of those physical controls in both Tadv scenarios is [...]

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Statistical relations among parameters of the water cycle in the arctic atmosphere

15 February 2024

Matrosov, Sergey

Supported by: ARM ASR

Research area: Cloud Processes

Earth’s water cycle is a complex system, and its characteristics are modified by climate change. Evaporation, water vapor condensation, and precipitation are important processes of the water cycle. Modeling these processes is especially challenging in the Arctic, where climate changes are amplified. Remote-sensing retrievals of water cycle parameters allow for [...]

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