Nature and Cycling of Carbonyl Compounds in the Remote Atmosphere

羰基化合物在光化学中起着重要的作用 以及大气的有机化学，但我们对 关于它们的浓度和循环。 几乎所有的过去 远程清洁空气中羰基化合物的测量 地区仅限于甲醛，即使其他 羰基化合物可能存在于类似或更高的 浓度的 该项目的主要目标是 阐明各种各样的主要来源和汇 远距离对流层中的羰基化合物， 这些在对流层化学中的作用。 为了实现这些目标， PI计划对背景进行密集测量 气相和水相羰基化合物的浓度，和 研究它们在化学和生物学方面的变化， 气象条件 这项工作将作为一项 Mauna Loa Observatory Photochemistry Experiment II的照片 关键化合物和参数的同时测量 在这个节目中将提供重要的新信息 模拟对流层化学过程所需的， 反过来将提供新的见解的相对重要性， 对流层化学中的羰基化合物。

Carbonyl compounds play central roles in the photochemistry and organic chemistry of the atmosphere, but little is known about their concentrations and cycling. Nearly all past measurements of carbonyl compounds in clean air over remote regions were restricted to formaldehyde, even though other carbonyl compounds were probably present at similar or higher concentrations. The main objectives in this project are to elucidate the major sources and sinks of a wide variety of carbonyl compounds in the remote troposphere and to quantify these roles in tropospheric chemistry. To achieve these goals, the PI plans to perform intensive measurements of background concentrations of gas and aqueous phase carbonyl compounds, and to study their variations with respect to chemical and meteorological conditions. The work will be carried out as a part of the Mauna Loa Observatory Photochemistry Experiment II. The simultaneous measurements of key compounds and parameters during this program will provide significant new information needed for modeling tropospheric chemical processes, which in turn will provide new insights into the relative importance of carbonyl compounds in tropospheric chemistry.