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| Evaluating the Roles of the Ocean, the Atmosphere, and External Forcing in Atlantic Multi-Decadal Variability | |
| 项目编号 | 1735245 |
| Amy Clement | |
| 项目主持机构 | University of Miami Rosenstiel School of Marine&Atmospheric Sci |
| 开始日期 | 2017-07-01 |
| 结束日期 | 2020-06-30 |
| 英文摘要 | Forests and anthropogenic activities emit reactive gases that convert to fine particles by complex processes. Current models are unable to predict this secondary particle production and the particle properties limiting our ability to assess impacts on regional air quality and water cycle. This project will develop a detailed first principles model and calibrate it with measurements to predict secondary fine particle production, their properties and their impacts on ice and cloud formation in convective storms. The educational component will develop a web based interactive computational chemistry model to inform and attract students to atmospheric research. The research will harness a master chemical mechanism and a kinetic multi-layer model of gas-particle interactions in aerosols and clouds that explicitly resolves the phase sensitive reactions and mass transport at the particle surface and bulk. This new model will be constrained by laboratory data on size resolved particle phase and chemical composition of secondary organic aerosol (SOA) formation from organic gases. How this formation mechanism transitions and the SOA properties change as we go from isoprene (biogenic) to naphthalene (anthropogenic) organic gases will be investigated to gain molecular level insight. The simulations will be extended to convective regimes of relative humidity, temperatures and updraft velocities that involve ice-nucleation pathways for SOA particles and compared to recent laboratory measurements. |
| 学科分类 | 0805 - 大气科学;08 - 地球科学 |
| 资助机构 | US-NSF |
| 项目经费 | 674245 |
| 项目类型 | Standard Grant |
| 国家 | US |
| 语种 | 英语 |
| 文献类型 | 项目 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/73498 |
| 推荐引用方式 GB/T 7714 | Amy Clement.Evaluating the Roles of the Ocean, the Atmosphere, and External Forcing in Atlantic Multi-Decadal Variability.2017. |
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