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

AGS-PRF：使用挥发性有机化合物的连续长期测量作为大气示踪剂来调查污染源和传输

• 批准号: 1331606
• 负责人: Chelsea Stephens
• 金额: $ 17.2万
• 依托单位: Stephens Chelsea R
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-10-01 至 2015-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1331606&HistoricalAwards=false
• 关键词: AGS; PRF; Investigation; Pollution; Sources

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.

一名AGS博士后研究员将对格陵兰Summit的甲烷和非甲烷碳氢化合物的长期、连续、高分辨率数据集（2009-2011年）进行分析，作为确定和研究个别污染事件向北极沿着主要来源地区的迁移的示踪剂。将进行调查，以确定污染物迁移事件的季节和年度频率和变异性及其对北极气候系统的影响。将其他高海拔地点（即皮科山、少女峰、霍恩佩森贝格）的类似NMHC测量值与Summit数据进行比较，以确定背景条件，并确定Summit与其他地点相比，在一年中的不同时间是否受到更多或更少的运输。正矩阵因子分解将被用作解释排放源及其对北极污染事件的贡献的工具。基于FLEXPART的运输建模研究将被纳入污染事件的源区分配。这项研究得到了AGS博士后研究奖学金计划的支持。