EAGER: Mixing Ratio and Flux Measurements of Volatile Organic Compounds During BEARPEX 2009 Using a Portable, Self-sufficient REA-GC-FID System

这个探索性项目包括在有限的基础设施条件下，在长期无人值机的操作模式下，对一种新型的放松涡流积累仪器进行首次现场测试，用于测量挥发性有机化合物（VOCs）的浓度和通量。2009年夏天，该仪器将在加州布洛杰特森林部署，测量生物源性挥发性有机化合物的排放，这是一项多研究员研究的一部分，研究重点是生物源性排放及其对森林冠层内外大气化学的影响。与生物源性VOC通量和化学相关的科学目标将得到解决，例如将结果与在同一地点但在改变的植物生理条件下进行的早期研究进行比较和对比。对仪器的微小修改，主要是在实地活动之前，将作为一个过程的一部分进行评估，以提高其是否适合于设想的长期部署到偏远的雨林地点，以观察热带生物圈-大气挥发性有机化合物的年际交换。该项目将为德克萨斯州农工大学的一名有才华的研究生提供独特的实地研究和网络体验。这也将允许学生增加一个重要的论文章节，关于生物挥发性有机化合物的通量，并最迟在2010年春季完成研究生课程。这项实地研究的结果将在同行评议的文献中传播，并纳入德克萨斯农工大学首席研究员（PI）大气化学研究生班。此外，PI将有机会通过这项研究发展新旧合作关系，这将导致出版合作。该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。

This exploratory project involves the first field test of a new, Relaxed Eddy Accumulation instrument for measuring concentrations and fluxes of Volatile Organic Compounds (VOCs) in a long-term, unattended operational mode under limited infrastructure conditions. During this deployment at Blodgett Forest in California in summer 2009, the instrument will measure emissions of biogenic VOCs as part of a multi-investigator study focusing on biogenic emissions and their effects on atmospheric chemistry within and above forest canopies. Scientific objectives related to biogenic VOC fluxes and chemistry will be addressed, such as comparing and contrasting results to those of earlier studies at the same site, but under changed plant physiological conditions. Minor modifications to the instrument, mostly prior to the field campaign, will be evaluated as part of a process to improve its suitability for an envisioned long term deployment to a remote rain forest location to observe tropical biosphere-atmosphere VOC exchange interannually.This project will allow a unique field research and networking experience for a talented graduate student at Texas A&M University. It will also allow the student to add an important thesis chapter on biogenic VOC fluxes and complete graduate studies latest in spring 2010. Results from this field study will be disseminated in the peer-reviewed literature and incorporated into the Principal Investigator's (PI) atmospheric chemistry graduate class at Texas A&M University. In addition, the PI will be given the opportunity to develop both old and new collaborative ties through this research, which will result in publication co-authorship. This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).