| 项目编号: | 1723290
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| 项目名称: | Collaborative Research: Effects of Aerosol Phase, Morphology, and Mixing State on Droplet Formation |
| 作者: | Miriam Freedman
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| 承担单位: | Pennsylvania State Univ University Park
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| 批准年: | 2017
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| 开始日期: | 2017-09-01
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| 结束日期: | 2020-08-31
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| 资助金额: | 299317
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Atmospheric and Geospace Sciences
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| 英文关键词: | state
; morphology ccn activation curve
; phase-separating system
; cloud droplet
; collaborative effort
; different phase state
; two-component phase system
; particle
; particle morphology
; droplet formation
; mixed phase state
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| 英文摘要: | This project is investigating factors that affect the formation of cloud condensation nuclei (CCN) in the atmosphere. Factors such as particle size and composition can influence the ability of a particle to uptake water and become a cloud droplet. This research will improve understanding of the interactions between aerosols and clouds, that are the most uncertain aspect of the climate system.
This collaborative effort focuses on quantifying the contribution of phase, morphology, and mixing state to CCN activation and droplet formation at subsaturated and supersaturated conditions. The project has the following objectives: (1) Compare hygroscopicity measurements with traditional hygroscopicity predictions for particles with different phase states; (2) Define the role of particle morphology (specifically changes in phase-separating systems) for particle water-uptake; (3) Determine the effect of particle mixing state of varying two-component phase systems for hygroscopicity; and (4) Develop models and software to interpret mixed phase state and morphology CCN activation curves. The collaboration includes a diverse group of early career scientists and will support the participation of both graduate and undergraduate students. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/88914
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Miriam Freedman. Collaborative Research: Effects of Aerosol Phase, Morphology, and Mixing State on Droplet Formation. 2017-01-01.
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