Instrumentation and Equipment for Air Chemistry/Meteorology Undergraduate Research and Education

大气科学(41)为流动大气研究单位和系留气球设施采用了升级和扩大的仪器和设备套件，用于空气化学和空气污染边界层气象学的本科生实地研究，使我们能够实施新的教育倡议(McGinn，M.K.和W-M)。Roth，1999：为有能力的科学实践做准备：科学和技术研究中最新研究的影响。教育研究员。1999年第28卷，第3期)。学生通过从事自己感兴趣的调查(科学探究)从事科学实践，并与同龄人合作解决问题，测试算法，发展协同洞察和社会互动(科学话语)。气相和颗粒采样器/分析器安装在完全便携的环境中，用于在实验室和现场环境中收集/测量CO、SO2、O3、NOx、VOCs和PM2.5/10。空气化学专业的学生以小组形式工作，每个人负责仪器的校准和维护；测量的收集、分析和质量评估；数据的直观表示；以及结果的传播。这些工具用于验证定量分析中的概念，如滤光片相关法、脉冲荧光、化学发光、紫外光度法、KI氧化、GC/MS分析和激光散射法(散射比浊法)。每个小组调查气相物种之间的相互关系，以及与气象条件和区域测量的相关性。协作学习是通过开放讨论来促进的，因为信息在小组内和小组之间扩散，并在小组之间出现，达到整个班级的水平。学生通过在控制组和试验组服务期间维护的实验期刊的内容分析来参与项目的评估，并期望产生一篇基于互动话语的联合反思论文。统计气象学、边界层气象学、环境化学、大气热力学和气象仪器、测量和观测系统专业的学生通过发展解决问题的技能、批判性思维和合作，参与科学过程和探索科学概念，从而受益。作为三个主要的多机构实地研究计划的一部分，用于系留气球作业的流动空气质量实验室和地面站制作气象变量和臭氧浓度的垂直剖面图(NARSTO-NE1995,1996；NARSTONE-OPS 1998-2001)。学生以科学家学徒的身份参与，负责和负责从后勤到数据收集和出版的研究活动。化学分析器和空气采样器与系留的多探测仪大气剖面仪一起部署，以研究边界层演变与地表痕量气体物种变异性之间的关系。部署在移动单元中的仪器的便携性允许在污染源附近和代表区域背景的其他地点获得测量结果。可携带性还使其能够接触到K-12和社区群体。通过链接到气象学网站www.atmos.milersv.edu，可以实时获得气相标准污染物的浓度。还可使用这些工具进行项目评估和科学调查的结果。

Atmospheric Science (41) Adapting an upgraded and expanded suite of instruments and equipment for a mobile atmospheric research unit and tethered balloon facility for undergraduate field studies in air chemistry and air pollution boundary layer meteorology has allowed us to implement new educational initiatives (McGinn, M.K. and W-M. Roth, 1999: Preparing Students for Competent Scientific Practice: Implications of Recent Research in Science and Technology Studies. EDUCATIONAL RESEARCHER. Vol. 28, No. 3, 1999) . Students have engaged in the practice of science by pursuing investigations of their own interests (scientific inquiry), and collaborate with peers to solve problems, test algorithms, and develop synergistic insights and social interactions (scientific discourse). Gas-phase and particle samplers/analyzers, mounted for complete portability, are used to collect/measure CO, SO2, O3, NOx, VOCs, and PM2.5/10 in both lab and field settings. Students in Air Chemistry work in small groups, each responsible for the calibration and maintenance of instruments; collection, analysis, and quality assessment of measurements; visual representation of data; and dissemination of results. These tools are used to authenticate concepts in quantitative analysis such as filter correlation methods, pulsed fluorescence, chemiluminescence, UV photometry, KI oxidation, GC/MS analysis, and laser scatterometry (nephelometry). Each group investigates inter-relationships among gas-phase species and correlations with the meteorological conditions and regional measurements. Collaborative learning is stimulated through open discussion as information diffuses and discursive practices emerge within and between groups to the whole-class level. Students participate in the assessment of the project through content analysis of lab journals maintained while serving in control and experimental groups, and are expected to produce a joint-reflection paper based on interactive discourse. Students in Statistical Meteorology, Boundary Layer Meteorology, Environmental Chemistry, Atmospheric Thermodynamics, and Meteorological Instruments, Measurement, and Observing Systems are benefitting by engaging in the scientific process and exploration of scientific concepts through the development of problem-solving skills, critical thinking, and collaboration. The mobile air quality lab and ground station for tethered balloon operations produces vertical profiles of meteorological variables and ozone concentrations as part of three major multi-institutional field research programs (NARSTO-NE 1995, 1996; NARSTONE-OPS 1998-2001). Students participate as scientist apprentices responsible and accountable for research activities from logistics to data collection and publication. Chemical analyzers and air samplers are deployed in conjunction with a tethered multi-sonde atmospheric profiler to study the relationship between boundary layer evolution and the variability of surface trace gas species. The portability of instruments deployed in a mobile unit allows measurements to be obtained near sources of pollutants and at other locations representative of the regional background. Portability also enables outreach to K-12 and community groups. Concentrations of gas-phase criteria pollutants are available in real-time through a link to the meteorology Web site at www.atmos.millersv.edu. Also available are project assessments and results of scientific investigations using these instruments.