The AQUARIUS (Air QUAlity Research In the western US) Workshop; Salt Lake City, Utah; April 2019

该项目支持将于2019年在犹他州盐湖城举办的为期两天的研讨会--《宝瓶座(美国西部空气质量研究)研讨会》。研讨会的目标是将专家聚集在一起，讨论和制定未来飞机行动的计划，以调查美国西部山区盆地的冬季颗粒物(PM)。该项目的结果将是一份白皮书，概述未来飞机和地面实地行动的范围和计划。早期职业科学家将优先获得旅行支持，尽管现在对大气化学和PM的形成有广泛的了解，但现有的模型无法再现美国西部几个空气盆地的污染物浓度。这些地区的化学成分受到边界层气象的显著影响，边界层气象可以在很长一段时间内将污染混合物限制在周围地形高度以下。在PCAPS期间，当地和区域的排放累积和老化，改变了PM的组成虽然之前的实地研究已经单独调查了边界和大气化学，但还没有研究收集到评估它们相互作用所需的一套数据。此外，由于PM的前体通常伴随着温室气体排放，两者都将受到温室气体缓解计划的影响。本次研讨会的目标是汇聚边界层气象学、大气化学和城市碳循环社区的研究带头人和年轻科学家，为美国西部的一项大型测量活动制定联合和互补的科学目标。讨论将集中在以下主题：1)农业排放、住宅木材燃烧和挥发性化学产品对冬季空气质量的影响；2)改善冬季PCAPS模式所需的数据和参数化；3)PCAPS的流域间输送和垂直层结的影响；4)PM前体和温室气体之间的排放比率；5)温室气体缓解行动可能如何影响冬季空气质量。该项目的更广泛影响将是编写一份文件，指导今后开展以实现这些科学目标为重点的实地运动。此外，研讨会组织者与州和地方空气质量管理机构有现有的关系，在这一努力中获得的科学知识和数据将用于应对当前空气质量管理中的挑战。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

This project supports a workshop, "The AQUARIUS (Air QUAlity Research In the western US) Workshop," to be held in Salt Lake City, Utah for two days in 2019. The goal of the workshop is to bring together experts to discuss and develop plans for a future aircraft campaign to investigate wintertime particulate matter (PM) in the mountain basins of the Western U.S. The outcome of the project will be a white paper outlining the scope and plan for a future aircraft and ground-based field campaign. Early career scientists will be given priority for travel support,Despite the now extensive knowledge of atmospheric chemistry and the formation of PM, existing models do not reproduce pollutant concentrations in several air basins in the Western US. The chemistry in these regions is significantly impacted by the boundary layer meteorology which can confine the pollution mixture below the height of surrounding terrain for an extended period. During the PCAPs local and regional emissions accumulate and age, changing the composition of the PM. While previous field studies have investigated the boundary and atmospheric chemistry individually, no studies have collected a suite of data needed to assess their interactions. Additionally, because precursors of PM are often emitted with GHGs, both will be impacted by GHG mitigation plans. The goal of this workshop is to bring together research leaders and young scientists in the boundary-layer meteorology, atmospheric chemistry, and urban carbon cycle communities to develop joint and complementary science objectives for a large measurement campaign in the western U.S. Discussions will focus on the following topics: 1) the impact of agricultural emissions, residential wood combustion, and volatile chemical products on wintertime air quality; 2) the data and parameterizations needed to improve models of wintertime PCAPs; 3) the impact of inter-basin transport and vertical stratification of PCAPs; 4) the emission ratios between PM precursors and GHGs; and 5) how GHG mitigation actions might affect wintertime air quality. The broader impacts of this project will be the development of a document to guide development of a future field campaign focused on addressing these scientific goals. Additionally, the workshop organizers have existing relationships with state and local air quality management agencies and the scientific knowledge and data obtained in this effort would be used to address current challenges within air quality management.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.