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

该项目支持将于2019年在犹他湖城举办为期两天的研讨会“AQUARIUS（美国西部空气质量研究）研讨会”。 研讨会的目的是汇集专家讨论和制定计划，为未来的飞机运动，以调查冬季颗粒物（PM）在美国西部的山区盆地的项目的结果将是一个白色文件概述的范围和计划，为未来的飞机和地面实地活动。 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，但现有的模型不能再现美国西部几个空气盆地的污染物浓度。这些地区的化学性质受到边界层气象学的显著影响，边界层气象学可以将污染混合物长时间限制在周围地形的高度以下。在PCAP期间，当地和区域排放量积累和老化，改变了PM的组成。虽然以前的实地研究分别调查了边界和大气化学，但没有研究收集了评估其相互作用所需的一套数据。此外，由于PM的前体物质通常与GHG一起排放，因此两者都将受到GHG缓解计划的影响。本次研讨会的目标是汇集边界层气象学，大气化学和城市碳循环社区的研究领导者和年轻科学家，为美国西部的大型测量活动制定联合和互补的科学目标。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）改进冬季PCAP模型所需的数据和参数化; 3）PCAP的流域间传输和垂直分层的影响; 4）PM前体物和GHG之间的排放比率;以及5）GHG减缓行动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，以指导今后开展以实现这些科学目标为重点的实地活动。此外，研讨会的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解决空气质量管理中当前的挑战。该奖项反映了NSF的法定使命，并被认为值得通过使用基金会的知识价值和更广泛的影响审查标准进行评估来支持。

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.