AGS-PRF: Investigation of Pollution Sources and Transport Using Continuous Long-Term Measurements of Volatile Organic Compounds as Atmospheric Tracers

一名AGS博士后研究员将在格陵兰峰会上对甲烷和非甲烷碳氢化合物（NMHC）的长期、连续、高分辨率数据集（2009-2011年）进行分析，作为识别和研究单个污染事件向北极及其主要来源地区的运输的示踪剂。将开展调查，以确定污染物输送事件的季节和年度频率和变率及其对北极气候系统的影响。其他高海拔地点（如Pico Mountain， Jungfraujoch, Hohenpeissenberg）的类似NMHC测量结果将与Summit的数据进行比较，以建立背景条件，并确定与其他地点相比，Summit在一年中的不同时间是否受到更多或更少的运输。正矩阵分解将被用作破译排放源及其对北极污染事件的贡献的工具。基于flexpart的运输模型研究将被纳入污染事件的源区域分配。本研究得到了AGS博士后研究奖学金计划的支持。

An AGS Post-Doctoral Fellow will undertake analysis of long-term, continuous, high-resolution data set (2009-2011) of methane and non-methane hydrocarbons (NMHC) at Summit, Greenland as tracers for identifying and studying transport of individual pollution events to the Arctic, along with their primary source regions. Investigations will be conducted to determine the seasonal and yearly frequency and variability of pollutant transport events and their impacts on the Arctic climate system. Similar NMHC measurements from other high-altitude sites (i.e. Pico Mountain, Jungfraujoch, Hohenpeissenberg) will be compared to the Summit data to establish background conditions and determine whether Summit, in comparison to other sites, is subjected to more or less transport at different times of year. Positive matrix factorization will be used as a tool to decipher emissions sources and their contributions to Arctic pollution events. FLEXPART-based transport modeling studies will be incorporated to perform source region allocations of pollution events. This research is supported under the AGS Postdoctoral Research Fellowship program.