SGER: Whole Air Sampling with Advanced Whole Air Sampler (AWAS) during HIAPER Pole-to-Pole Observation (HIPPO) Global

SGER：在 HIAPER 极对极观测 (HIPPO) 全球期间使用先进的整体空气采样器 (AWAS) 进行整体空气采样

• 批准号: 0849086
• 负责人: Elliot Atlas
• 金额: $ 5万
• 依托单位: University of Miami
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-12-01 至 2009-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0849086&HistoricalAwards=false
• 关键词: SGER; Whole; Air; Sampling; Advanced

The investigators will collect whole air samples and measure trace gas composition during the first year of the HIAPER Pole-to-Pole Observation (HIPPO) project. The measurements proposed here promise to provide an unprecedented data set of the vertical and latitudinal distributions of a wide range of trace gases that are relevant to atmospheric chemistry and climate. The measurements will include a wide range of anthropogenic and naturally-occurring trace gases with a range of chemical lifetimes and emission source patterns. The measurements during the first year of the HIPPO project will cover the northern hemisphere winter (January) and autumn (Oct/Nov) time periods, when there is maximum contrast in photochemical lifetimes of reactive trace gases between the hemispheres. The trace gas distributions and correlations from these samples (and from the NOAA flask samples) will enhance the interpretation of the major carbon cycle gases by adding insight into source regions and chemical processing of the air masses sampled in the HIPPO transects. Further, the measurement of trace gases from the whole air samplers will add additional and significant constraints to the global chemical transport models that will be used in the HIPPO analyses and will add measurements relevant to understanding changes in air quality in the remote atmosphere. Finally, the proposed research will compare the newly-constructed HAIS Advanced Whole Air Sampler (AWAS) canister modules with NOAA glass flasks for selected halocarbons, CFCs, HCFCs, and HFCs, will enhance the geographic resolution of the HIPPO whole air data set for these gases, and will extend the range of compounds to additional natural and anthropogenic trace gases.The measurement of the suite of trace gases planned here, as a complement to the major carbon cycle gases measured during HIPPO, will add to the understanding of the relationships between greenhouse and carbon cycle gases and other significant trace gases in the atmosphere. These relationships and distributions, for example characterizing the hemispheric distribution of organic bromine compounds, will link ground based measurements as selected sites to the full atmosphere over the Pacific Ocean. This link will enhance the development of global atmospheric chemistry models to better predict atmospheric chemical distributions in the future. The project also supports the development of a HAIS instrument as a community resource by direct comparison to NOAA flasks commonly used throughout the NOAA global network. Finally, the HIPPO project, and out proposed measurements, will involve training of students and post-doctoral scientists, and the project will add to the development of graduate and undergraduate courses in atmospheric chemistry and environmental science.

调查人员将在HIAPER极地观测（HIPPO）项目的第一年收集整个空气样本并测量痕量气体成分。这里提出的测量承诺提供一个前所未有的数据集的垂直和纬度分布的范围广泛的痕量气体，是有关大气化学和气候。 测量将包括各种各样的人为和自然产生的痕量气体，这些气体具有各种化学寿命和排放源模式。HIPPO项目第一年的测量将涵盖北方半球冬季（1月）和秋季（10月/11月），这两个半球之间活性痕量气体的光化学寿命对比最大。 这些样品（和NOAA烧瓶样品）的痕量气体分布和相关性将通过增加对HIPPO断面中采样的空气质量的源区和化学处理的了解来增强对主要碳循环气体的解释。 此外，测量整个空气采样器的痕量气体将为HIPPO分析中使用的全球化学传输模型增加额外的重要限制，并将增加与了解遥远大气层空气质量变化有关的测量。 最后，拟议的研究将比较新建造的HAIS高级全空气采样器（AWAS）罐模块与NOAA玻璃烧瓶，用于选定的卤代烃，CFC，HCFC和HFC，将提高HIPPO全空气数据集的地理分辨率，并将化合物的范围扩展到其他天然和人为痕量气体。作为HIPPO期间测量的主要碳循环气体的补充，将增加对温室和碳循环气体以及大气中其他重要痕量气体之间关系的理解。 这些关系和分布，例如表征有机溴化合物的半球分布的关系和分布，将把选定地点的地面测量与太平洋上空的整个大气联系起来。 这一联系将促进全球大气化学模型的发展，以便更好地预测未来的大气化学分布。 该项目还支持开发一种HAIS仪器，通过与NOAA全球网络中常用的NOAA烧瓶进行直接比较，将其作为社区资源。最后，HIPPO项目和拟议的测量将涉及对学生和博士后科学家的培训，该项目将有助于大气化学和环境科学研究生和本科生课程的发展。