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| QUANTIFYING THE IMPACT OF THE NEUTRAL ATMOSPHERE ON THE TOPSIDE IONOSPHERE DURING STORMS | |
| 项目编号 | NNX15AJ24G S02 |
| TIM FULLER-ROWELL | |
| 项目主持机构 | UNIVERSITY OF COLORADO, BOULDER |
| 开始日期 | 2015-04-22 |
| 结束日期 | 2019-04-21 |
| 英文摘要 | This work focuses on improving the fundamental understanding of processes that contribute to the formation of secondary organic aerosol (SOA - very small particles formed from gas-phase compounds) in the atmosphere. A series of laboratory chamber experiments is being conducted to evaluate the atmospheric conditions and concentrations of various chemical species that lead to SOA formation. The results of this research will lead to improved models for predicting SOA formation. The objectives of this research are: (1) To experimentally map out the effects of the different reaction channels of peroxy radicals on SOA yields, gas- and aerosol-phase composition from photochemical oxidations of biogenic and anthropogenic hydrocarbons, and (2) To determine the effects of different peroxy radical reaction pathways on aerosol volatility. The proposed work focuses on oxidation by OH radicals under dry conditions (relative humidity < 1%). Ammonium sulfate is being used as seeds for aerosol growth and hydrogen peroxide (H2O2), nitrous acid (HONO), or methyl nitrite (CH3ONO) is being used as the OH source. This research will also help improve understanding of how nitrogen oxides influence the SOA formation process. The project includes outreach plans at the Columbia Middle School (a Title 1 school) to work with an Earth Science teacher and middle school students to increase their knowledge and experience in science, technology, engineering, and math (STEM) disciplines. |
| 学科分类 | 03 - 天文学;1107 - 航空航天工程;11 - 工程与技术 |
| 资助机构 | US-NASA |
| 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/74218 |
| 推荐引用方式 GB/T 7714 | TIM FULLER-ROWELL.QUANTIFYING THE IMPACT OF THE NEUTRAL ATMOSPHERE ON THE TOPSIDE IONOSPHERE DURING STORMS.2015. |
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