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| Lightweight Balloon-Borne Atmospheric Carbon Dioxide Sensor | |
| 项目编号 | DE-FG02-06ER84439 |
| Pilgrim, Jeffrey | |
| 项目主持机构 | Vista Photonics, Inc. |
| 开始日期 | 2006-06-28 |
| 结束日期 | 2007-03-27 |
| 英文摘要 | This project will establish a database of seasonal sesquiterpene (SQT) emission rates from the dominant natural United States shrubs and trees. Experiments will be conducted at a tree nursery in Boulder, Colorado, supplemented by field trips to other selected sites. Speciated emission rates will be monitored with a field-deployable gas chromatography (GC)/mass spectrometry (MS) instrument, and the use of a proton transfer reaction mass spectrometer (PTRMS) will also be explored. A capillary diffusion system for generation of SQT standards will be used for calibration and characterization of the experimental procedures. In order to reduce uncertainties in SQT emission rates, several approaches will be taken: a high number of replicate measurements will be performed on species of important biomass genera; trees and shrubs from the same species but from different populations will be compared; seasonal changes in emission rates will be investigated with year-round measurements; and parameters that may affect SQT emission rates, such as temperature, light, mechanical stress, drought, pests, and ozone exposure will be examined. Data will be incorporated into the Model of the Emissions of Gases and Aerosol from Nature (MEGAN) for an assessment of SQT emissions on atmospheric concentrations and biogenic aerosol formation. SQT emission rates, and emission algorithms will be made available to the scientific community for use in air quality modeling. Graduate and undergraduate students will participate in the field studies and modeling efforts. The results will be incorporated into lectures and other presentations, and an educational website will present this research for use in classroom teaching. Several local outreach efforts are planned, including a poster presentation, flyers, and a talk at a local forestry council meeting. |
| 学科分类 | 1103 - 工程热物理与能源利用;11 - 工程与技术;04 - 物理学 |
| 资助机构 | US-DOE |
| 项目经费 | 100000 |
| 项目类型 | 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/76877 |
| 推荐引用方式 GB/T 7714 | Pilgrim, Jeffrey.Lightweight Balloon-Borne Atmospheric Carbon Dioxide Sensor.2006. |
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