Collaborative Research: EAGER--Deployment of a New Photofragmentation Laser Induced Fluorescence (LIF) Nitrous Acid (HONO) Measurement on FIONA

EUROCHAMP（欧洲大气过程综合模拟室）将于2010年5月在西班牙瓦伦西亚的EUPHORE室举行亚氮观测的正式比对（FIONA），研究人员已被邀请参加。由于其高灵敏度和不受已知干扰，PF-LIF（光碎裂-激光诱导荧光）是FIONA特别需要的测量技术。调查人员计划在紧急情况下参加菲奥娜，因为菲奥娜部署前的时间紧迫。亚硝酸（HONO）是大气化学中的一种关键物质。它在近紫外线下迅速光解，产生羟基自由基OH和一氧化氮NO。OH是大气中的主要氧化剂，驱动着大部分大气化学；在挥发性有机物存在的情况下，NO催化OH的生成，从而催化臭氧的生成。然而，对HONO的行为的理解是不完整的。更好地理解这种重要分子的一个关键组成部分是确保研究界能够准确地测量它。这是HONO仪器所在的佐治亚理工学院和路易斯安那大学门罗分校（ULM）的共同努力。ULM将提供现场校准和验证仪器，以及部署和建模专业知识。由于时间原因，并行工作很重要，因为FIONA日期是2010年中期。ULM和GA Tech之间合作的教育影响将使ULM的高度积极和自律的本科生获得新技术的经验和机会；了解大气化学的最新问题；培养研究中需要的批判性思维能力。与乔治亚理工学院这样的大型研究型大学的互动提供了ULM无法提供的机会。这个学生将被期望对这门科学有所贡献。路易斯安那大学门罗分校位于密西西比河三角洲下游地区，这是一个历史上经济落后的地区。ULM致力于为密西西比三角洲下游的公民提供多样化的学术研究门户。

EUROCHAMP (Integration of European Simulation Chambers for Investigating Atmospheric Processes) is holding the Formal Intercomparison of Observations of Nitrous Acid (FIONA) at the EUPHORE chambers in Valencia, Spain, in May 2010, and the investigators have been invited to participate. Because of its demonstrated high sensitivity and freedom from known interferences, PF-LIF (photofragmentation - laser induced fluorescence) is a particularly desired measurement technique for FIONA. The investigators plan to attend FIONA under EAGER because of the compressed timeframe prior to deployment for FIONA . Nitrous acid, HONO, is a critical species in the chemistry of the atmosphere. It photolyzes rapidly in the near ultraviolet to produce the hydroxyl radical, OH, and nitric oxide, NO. OH is the primary oxidant in the atmosphere and drives the bulk of atmospheric chemistry; NO, in the presence of volatile organic species, catalyzes the production of OH and thereby ozone. However, understanding of the behavior of HONO is incomplete. A key component to better understanding this important molecule is to ensure that the research community can measure it accurately. This is a joint effort between the Georgia Institute of Technology, where the HONO instrument exists, and the University of Louisiana at Monroe (ULM). ULM will contribute a field calibration and validation instrument, and deployment and modeling expertise. Working in parallel is important for time reasons, given the mid-2010 FIONA date. The educational impact of collaboration between ULM and GA Tech will allow a highly motivated and self-disciplined undergraduate from ULM to have experience with and access to new technology; to gain exposure to current issues in atmospheric chemistry; and to develop critical thinking skills needed in research. Interaction with a large research university like Gergia Tech provides access to opportunities that ULM cannot provide. This student will be expected to contribute to the science. The University of Louisiana at Monroe is located in the Lower Mississippi Delta region which is historically an economically disadvantaged area. ULM is committed to serving as a gateway to diverse academic studies for citizens of the Lower Mississippi Delta.