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| Physical, Chemical, and Optical Properties of Snow: Impacts on Ocean-Atmosphere-Sea Ice-Snowpack Interactions (OASIS) and Sensitivity to Climate Change | |
| 项目编号 | 0807702 |
| Cort Anastasio | |
| 项目主持机构 | University of California-Davis |
| 开始日期 | 2008-09-01 |
| 结束日期 | 2012-08-31 |
| 英文摘要 | Researchers at the University of California, Davis (UCD) will collaborate with other scientists in the Ocean-Atmosphere-Sea Ice-Snowpack (OASIS) 2009 field campaign at Barrow, AK. This project has three main objectives, centered around the photochemistry of snow: 1) Measure the amount of light absorption by soluble species in/on snow grains, including hydrogen peroxide (H2O2), nitrate, nitrite, and unknown (presumably organic) chromophores. 2) Measure the physical, chemical, and optical properties of the snow. 3) Integrate these results to characterize the contributions of organic chromophores to light absorption in snow, determine the physical and chemical factors affecting light fluxes and light absorption in snow, examine the effects of snow photochemistry on snow and boundary layer composition, and model the snow photochemistry. The UCD team will also coordinate the OASIS field campaign. This would be among the first studies of the contributions of organic species to the pool of chromophores in/on snow grains, and could lead to significant advances in our understanding of snow photochemistry and its impacts on atmospheric composition. Broader impacts include: outreach via live web cams during the field campaign; coordination with U.S. and international TV stations to cover the Barrow field work; participation of undergraduate students; educational outreach to students at a rural high school near Davis; coordination of data archiving from the field campaign; and hosting OASIS 2009 sessions at conferences. |
| 学科分类 | 08 - 地球科学;0805 - 大气科学 |
| 资助机构 | US-NSF |
| 项目经费 | 543432 |
| 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/72394 |
| 推荐引用方式 GB/T 7714 | Cort Anastasio.Physical, Chemical, and Optical Properties of Snow: Impacts on Ocean-Atmosphere-Sea Ice-Snowpack Interactions (OASIS) and Sensitivity to Climate Change.2008. |
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