Collaborative Research: Program for Research on Oxidants: Photochemistry Emissions and Transport (PROPHET) 2009--Community Atmosphere-Biosphere INteractions EXperiment (CABINEX)

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。这项对森林大气光化学的合作调查将采用一套独特的合作方法，重点关注近冠层环境中发生的化学反应。 现在众所周知，森林排放的生物挥发性有机化合物影响上覆大气的物理（如气溶胶）和化学（如臭氧）组成，这反过来又影响森林生产力。 然而，最近在森林地区的氢氧化物（HOx）自由基的测量结果与模型预测有很大的不同，使人们对BVOCs的化学性质及其对臭氧化学和二次气溶胶形成的贡献产生了疑问。 2009年夏天，密歇根大学生物站（UMBS）将利用PROPHET（氧化剂研究计划：光化学，排放和运输）和FASET（森林加速演替实验）设施，经验和人力资源进行密集的实地活动。 UMBS代表了理想的研究社区资产，使追求更好地了解BVOCs影响的复杂大气化学，此外，观察化学如何在不断变化的森林组成和气候的背景下发生变化。 HOx，BVOC，气溶胶和氧化产物测量的组合将使用各种复杂的仪器技术，利用我们的基础设施探测垂直维度（塔，树冠访问车辆，气溶胶激光雷达和仪表飞机）。 然后，这些测量结果将为旨在测试当前理解的建模工作提供信息。 预计将有12名研究生和至少同样多的本科生研究助理参加现场活动。 在研究期间，将举行频繁的数据会议，学生将在会议上介绍和讨论初步数据的科学意义。 大气科学家将有许多机会与整个UMBS社区进行交流和合作。 将在UMBS组织一次科学研讨会，包括对大气-森林相互作用感兴趣的森林生态学和地球化学研究人员。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).This collaborative investigation into the forest atmosphere photochemistry will apply a unique set of collaborative approaches, focused on the chemistry occurring in the near-canopy environment. It is now well known that forests emit biogenic volatile organic compounds (BVOCs) that impact the physical (e.g. aerosols) and chemical (e.g. ozone) composition of the overlying atmosphere, and that this in turn impacts forest productivity. However, recent measurements of hydrogen oxide (HOx) radicals in forested areas differ significantly from model predictions, bringing into question understanding of the chemistry of BVOCs and their contribution to the chemistry of ozone and secondary aerosol formation. An intensive field campaign at the University of Michigan Biological Station (UMBS) during the summer of 2009 will take advantage of both the PROPHET (Program for Research on Oxidants: PHotochemistry, Emissions and Transport) and the FASET (Forest Accelerated Succession ExperimenT) facilities, experience and human resources. UMBS represents the ideal research community asset to enable pursuit of a better understanding of the complex atmospheric chemistry impacted by BVOCs and, additionally, to observe how that chemistry may change in the context of changing forest composition and climate. A combination of HOx, BVOC, aerosol, and oxidation product measurements will be made using a wide array of sophisticated instrumental techniques, taking advantage of our infrastructure for probing the vertical dimension (towers, a canopy access vehicle, aerosol LIDAR, and an instrumented aircraft). These measurements will then inform a modeling effort aimed at testing current understanding. It is anticipated that 12 graduate students and at least as many undergraduate research assistants will participate in the field campaign. During the study frequent data meetings will be held in which students will present and discuss the scientific implications of preliminary data. There will be many opportunities for atmospheric scientists to interface and collaborate with the entire UMBS community. A science symposium at UMBS that will include the forest ecology and biogeochemistry researchers who have interest in atmosphere-forest interactions will be organized.