MRI Track 1: Acquisition of an Aerosol Chemical Speciation System to Elucidate Sources, Formation Processes, and Environmental Impacts at ASU's AppalAIR Observatory

MRI 轨道 1：在亚利桑那州立大学 AppalAIR 天文台获取气溶胶化学形态系统，以阐明来源、形成过程和环境影响

• 批准号: 2320510
• 负责人: Robert Swarthout
• 金额: $ 53.19万
• 依托单位: Appalachian State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-01 至 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2320510&HistoricalAwards=false
• 关键词: MRI; Track; Acquisition; Aerosol; Chemical

This Major Research Instrumentation Project (MRI) supports the development of an aerosol chemical speciation system (ACSS) to be located at the Appalachian Atmospheric Interdisciplinary Research (AppalAIR) facility at Appalachian State University in Boone North Carolina. The research to be conducted at this facility is based on the collection of detailed aerosol chemical composition measurements that will be used to examine the spatiotemporal heterogeneity in the relationships among the concentration and sources of aerosols and their interactions with clouds, solar radiation, and meteorology in the Southern Appalachian Mountain region of the southeastern US. This data is important for better understanding regional changes in air quality and climate.The requested ACSS will be an identical system to those that are part of the Science and Chemistry mEasurement NeTwork (ASCENT), recently funded by the NSF Mid-Scale Infrastructure Program. The AppalAIR site also is home to NOAA FAN, NASA AERONET, and NASA MPLNET aerosol network sites. Data from this site will provide long-term measurements of sub-2.5 micron (PM2.5) aerosol refractory and non-refractory chemical composition to complement ongoing measurements of gas phase aerosol precursors and aerosol detailed optical and microphysical properties. Projects that use will data from the ACSS include those that aim to improve the understanding of atmospheric aerosol water uptake and the role of hygroscopic aerosols as cloud condensation nuclei (CCN). This data is critical for modeling aerosol-cloud interactions and aerosol direct radiative forcing.Appalachian State University is a predominantly undergraduate institution in the rural southern Appalachian Mountain region. The ACSS-enabled projects mentioned above will provide in-depth, hands-on research opportunities for both undergraduate and graduate students that will give them an advantage when entering the job market or seeking advanced degrees. This project is jointly funded by the Atmospheric Chemistry Program and Division of Atmospheric and Geospace Sciences that support projects that increase research capabilities, capacity and infrastructure at a wide variety of institution types, as outlined in the GEO EMBRACE DCL.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.

该重大研究仪器项目 (MRI) 支持气溶胶化学形态分析系统 (ACSS) 的开发，该系统位于北卡罗来纳州布恩阿巴拉契亚州立大学的阿巴拉契亚大气跨学科研究 (AppalAIR) 设施中。该设施将进行的研究基于收集详细的气溶胶化学成分测量结果，这些测量结果将用于检查气溶胶浓度和来源之间的关系以及它们与云、太阳辐射和气象的相互作用的时空异质性。美国东南部的南阿巴拉契亚山脉地区。这些数据对于更好地了解空气质量和气候的区域变化非常重要。所需的 ACSS 将与科学和化学测量网络 (ASCENT) 的系统相同，该网络最近由 NSF 中型基础设施计划资助。 AppalAIR 站点也是 NOAA FAN、NASA AERONET 和 NASA MPLNET 气溶胶网络站点的所在地。该站点的数据将提供亚 2.5 微米 (PM2.5) 气溶胶难熔和非难熔化学成分的长期测量，以补充正在进行的气相气溶胶前体和气溶胶详细光学和微物理特性的测量。使用 ACSS 数据的项目包括旨在提高对大气气溶胶水吸收以及吸湿气溶胶作为云凝结核 (CCN) 的作用的理解的项目。这些数据对于模拟气溶胶-云相互作用和气溶胶直接辐射强迫至关重要。阿巴拉契亚州立大学是阿巴拉契亚山脉南部农村地区的一所主要本科院校。上述 ACSS 支持的项目将为本科生和研究生提供深入的实践研究机会，这将使他们在进入就业市场或寻求高级学位时获得优势。该项目由大气化学计划和大气与地球空间科学部联合资助，支持提高各种机构类型的研究能力、能力和基础设施的项目，如 GEO EMBRACE DCL 中所述。该奖项反映了 NSF 的法定使命通过使用基金会的智力优点和更广泛的影响审查标准进行评估，并被认为值得支持。