Mass concentration of BC(black carbon) measurment by COSMOS at Poker Flat Research Range (PFRR), Alaska, USA

Long-term (since 2016) observations of atmospheric black carbon (BC) mass concentrations were performed using a continuous soot-monitoring system (COSMOS) at Poker Flat Research Range (PFRR), Alaska, USA. We aim to evaluate atmospheric chemical transport models and chemistry-climate models used for IPCC assessment reports and to provide information on wet removal rate constraints and the emission strengths of important sources (nearby boreal forest fires and Asia, after long-range transport).自2016年起，研究团队在美国阿拉斯加州扑克弗拉特研究靶场（Poker Flat Research Range, PFRR）利用连续烟尘监测系统（Continuous Soot-monitoring System, COSMOS），开展了大气黑碳（black carbon, BC）质量浓度的长期观测。本研究旨在评估应用于政府间气候变化专门委员会（Intergovernmental Panel on Climate Change, IPCC）评估报告的大气化学传输模型与化学-气候模式，并可为湿去除速率约束以及重要排放源（含附近北方森林火灾与经长距离输送的亚洲排放源）的排放强度提供相关数据支撑。