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

Global importance of secondary ice production

22 July 2021

Liu, Xiaohong

Supported by: ARM ASR

Research area: Cloud-Aerosol-Precipitation Interactions

Measured ice crystal number concentrations are often orders of magnitude higher than the number concentrations of ice nucleating particles (INPs), indicating the existence of secondary ice production (SIP) in clouds. However, the SIP is poorly represented in global climate models (GCMs) and its impacts not quantified. In this study, we [...]

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Impacts of secondary ice production on arctic mixed-phase clouds during M-PACE

22 July 2021

Liu, Xiaohong

Supported by: ARM ASR

Research area: Cloud Processes

Mixed-phase stratus clouds in the Arctic are long-lived and have a large impact on the surface radiation budget. Ice crystals play a key role in the cloud phase and thus determine the optical properties of these clouds. However, how ice crystals are produced in these clouds is still unknown. In [...]

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What drives daily precipitation over the central Amazon?

15 July 2021

Biscaro, Thiago

Supported by: ARM ASR

Research area: Cloud Processes

We offer an alternative presentation regarding how diurnal precipitation is modulated by convective events that developed over the central Amazon during the preceding nighttime period.

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A cool surface of the Amazon River alters daytime precipitation and moisture convergence

10 July 2021

Wang, Die

Supported by: ARM ASR

Research area: Cloud Processes

We provide a comprehensive picture of the precipitation characteristics modulated by the cool Amazon River surface using both high-resolution satellite products and regional climate modeling.

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Eastern North Atlantic measurements characterize aerosol particles and their sources

9 July 2021

Fast, Jerome D

Supported by: ARM ASR

Research area: Aerosol Processes

Water vapor needs microscopic particles, called cloud condensation nuclei (CCN), to form droplets inside clouds. Because clouds reflect solar radiation, they are a key component of the climate system. This study characterized the vertical profiles and sources of aerosol particles and the trace gases that form them during two seasons, [...]

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