An Airborne Study of the Chemistry of Sulfur in the Atmosphere of the Western North Pacific Ocean

北太平洋西部大气中硫化学的机载研究

• 批准号: 0002655
• 负责人: Alan Bandy
• 金额: $ 22万
• 依托单位: Drexel University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-01-01 至 2004-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0002655&HistoricalAwards=false
• 关键词: Airborne; Study; Chemistry; Sulfur; Atmosphere

Measurements of sulfur dioxide (SO2) and dimethyl sulfide (DMS) will be performed on board the C-130 aircraft during ACE-Asia (Aerosol Characterization Experiment). A recently developed instrument will be deployed that is capable of measuring SO2 at a frequency of 1 Hz and a detection limit of 1 ppt. The instrument is based on atmospheric pressure ionization mass spectrometery (APIMS). Isotopically labelled SO2 will be used as an external standard. The fast response time will make it possible to rapidly identify different atmospheric layers. Of particular interest in the ACE-Asia program will be urban pollution layers (high in SO2) and dust layers, and the question of the degree to which dust and SO2 interact chemically.

在ACE-亚洲（气溶胶特性实验）期间，将在C-130飞机上进行二氧化硫（SO2）和二甲基硫（DMS）的测量。将部署一种最近开发的仪器，该仪器能够以1 Hz的频率和1 ppt的检测限测量SO2。该仪器是基于大气压电离质谱（APIMS）。同位素标记的SO2将用作外标。快速的反应时间将使快速识别不同的大气层成为可能。ACE-亚洲项目特别感兴趣的是城市污染层（SO2含量高）和灰尘层，以及灰尘和SO2化学相互作用的程度问题。