MRI: Acquisition of an Aerosol Characterization System for the Caribbean and the Americas

该主要研究仪器项目支持由迈阿密大学在巴巴多斯的粗糙点操作的气溶胶表征系统的收购。气溶胶表征系统预计将开辟新的研究途径，涉及非洲沙尘向美洲的输送、海洋边界层中源自海洋的有机气溶胶（OAs）的影响、野火烟雾、云和辐射过程。该项目包括初高中学生、迈阿密大学本科生和研究生、位于巴巴多斯的西印度群岛大学的学生以及其他合作机构的学生的参与和培训。新的气溶胶表征系统将加强世界上一个重要地区的现有基础设施。该项目包括在加勒比进行广泛的新观测的计划，这些观测可以为涉及大气化学、海洋学、地球科学、气象学和公共卫生等领域的跨学科科学提供重要见解。新的耦合测量设备集成系统将提供输送到加勒比海和南北美洲的气溶胶的大小、组成、来源和辐射特性的原位表征。与大气群落有关的观测资料已在粗糙点收集了50多年。将购置12台新仪器并安置在现场。一个新的入口和瞭望塔将被建造。提议的气溶胶表征系统的主要组成部分包括新的塔和四极杆气溶胶化学形态监测仪（Q-ACSM），以及Xact 625i环境金属监测仪。将设立一个咨询委员会，每两年举行一次会议，以扩大用户基础，并为那些希望在该地点进行研究的人制定用户收费结构。该奖项反映了美国国家科学基金会的法定使命，并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，被认为值得支持。

This Major Research Instrumentation project supports the acquisition of an Aerosol Characterization System to be operated by the University of Miami at the Ragged Point in Barbados. The Aerosol Characterization System is expected to open up new research avenues related to the transport of African dust to the Americas, the impact of ocean-derived organic aerosols (OAs) in the marine boundary layer, wildfire smoke, and cloud and radiation processes. This project includes the engagement and training of middle and high school students, University of Miami undergraduate and graduate students, and students from the University of West Indies located in Barbados, as well as students from other collaborating institutions. The new Aerosol Characterization System will enhance the existing infrastructure in an important region of the world.This project includes plans for a broad range of new observations in the Caribbean that can provide significant insight into interdisciplinary science involving the fields of atmospheric chemistry, oceanography, geoscience, meteorology, and public health. The new integrated system of coupled measurement devices will provide in situ characterization of the size, composition, source, and radiative properties of aerosols transported to the Caribbean and North and South America. Observations pertinent to the atmospheric community have been collected at Ragged Point for over 50 years. Twelve new instruments will be acquired and located at the site. A new inlet and observation tower will be constructed. The major components of the proposed Aerosol Characterization System include the new tower and a Quadrupole Aerosol Chemical Speciation Monitor (Q-ACSM), and a Xact 625i ambient metals monitor. An Advisory Committee will be created and will meet biannually to expand the user base and develop a user fee structure for those who wish to conduct research at the site.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.