Climate Change Data Portal
| Fundamental Studies of Photo-Assisted Chemical Vapor Deposition on Aerosol Nanoparticles | |
| 项目编号 | 0730184 |
| Steven Girshick | |
| 项目主持机构 | University of Minnesota-Twin Cities |
| 开始日期 | 2007-10-01 |
| 结束日期 | 2011-09-30 |
| 英文摘要 | The general seasonal climatology and chemical composition of Arctic aerosol are basically well understood, but the contribution from organic compounds is not. At lower latitudes, organics are known to play a large role in climate forcing. The direct radiative effects of aerosol on Arctic climate have been identified, but our knowledge of indirect effects (via cloud microphysical interactions) is still incomplete. In particular, further understanding is needed of the processes through which aerosols serve as cloud condensation nuclei and enhance the reflectivity of low-level water clouds, a phenomenon known as the first aerosol indirect effect. Funds are provided to carry out a sampling program at Barrow, Alaska, to determine the fraction of Arctic aerosol that is organic, throughout the year, and identify functional group composition, possible anthropogenic sources, and to provide a basis for rigorous incorporation of Arctic aerosol chemical composition in climate change studies. The principal investigators will deploy a new shortwave spectroradiometer at Barrow, covering the wavelength range 0.35 - 2.5 microns, which will provide high-time-resolution data for retrieval of cloud thermodynamic phase, liquid/ice water path, and effective particle radius. With supplemental data from the U.S. Department of Energy Atmospheric Radiation Measurement Program site at Barrow, they will thus be able to quantify the shortwave component of the first aerosol indirect effect and, through the new understanding they will gain about organics, understand both liquid water path and effective radius contributions to the first aerosol indirect effect. |
| 学科分类 | 05 - 化学科学;0506 - 化学工程及工业化学;06 - 生物科学;09 - 环境科学;0904 - 环境工程;11 - 工程与技术;1105 - 建筑环境与结构工程 |
| 资助机构 | US-NSF |
| 项目经费 | 300000 |
| 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/76712 |
| 推荐引用方式 GB/T 7714 | Steven Girshick.Fundamental Studies of Photo-Assisted Chemical Vapor Deposition on Aerosol Nanoparticles.2007. |
| 条目包含的文件 | 条目无相关文件。 | |||||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| [Steven Girshick]的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| [Steven Girshick]的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| [Steven Girshick]的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
