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

这一重大研究仪器项目支持购买一个气雾剂表征系统，该系统将由位于巴巴多斯的拉格点的迈阿密大学操作。预计气溶胶表征系统将开辟新的研究途径，涉及非洲尘埃向美洲的输送、海洋边界层中海洋衍生有机气溶胶的影响、野火烟雾以及云和辐射过程。该项目包括对初中生、迈阿密大学本科生和研究生、巴巴多斯西印度群岛大学的学生以及其他合作机构的学生进行参与和培训。新的气溶胶表征系统将加强世界上一个重要区域的现有基础设施，该项目包括在加勒比地区进行广泛的新观测的计划，这些新观测可以对涉及大气化学、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的洞察。新的耦合测量设备综合系统将提供输送到加勒比和北美和南美洲的气溶胶的大小、成分、来源和辐射特性的现场表征。关于大气群落的观测已经在RAGGING POINT收集了50多年。将在现场购置并安装12台新仪器。将建造一座新的进水口和观景塔。拟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)和Xact 625i环境金属监测仪。将成立一个咨询委员会，并将每两年举行一次会议，以扩大用户基础，并为那些希望在现场进行研究的人制定用户费用结构。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 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.