Rapid Airborne Measurements of Bulk Aerosol Ionic Composition During Aerosol Characterization Experiment (ACE)-Asia

亚洲气溶胶表征实验 (ACE) 期间散装气溶胶离子成分的快速机载测量

• 批准号: 0080471
• 负责人: Rodney Weber
• 金额: $ 23.77万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-12-15 至 2004-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0080471&HistoricalAwards=false
• 关键词: Rapid; Airborne; Measurements; Bulk; Aerosol

This project supports rapid airborne measurements of bulk aerosol ionic composition during ACE-Asia (Aerosol Characterization Experiment). An automated instrument will be deployed on the C-130 research aircraft. The instrument consists of a particle-in-liquid sampler coupled to a dual channel ion chromatograph (IC) analysis system. The following ions can be measured with a sensitivity of about 5 pptv over a sample integration interval and duty cycle of about 4 minutes: chloride, nitrate, sulfate, sodium, ammonium, potassium, and calcium. Particles are collected directly into a liquid which is injected online and continuously into the ion chromatograph. The rapid ionic concentration measurements will be used to chemically characterize and study the evolution of the aerosol plumes advected from Asia. Another objective is to quantify the extent to which ionic components contribute to aerosol optical properties by synchronizing the airborne chemical and physical measurements.

该项目支持在ACE-ASIA(气溶胶特性实验)期间对大宗气溶胶离子成分进行快速航空测量。一台自动化仪器将部署在C-130研究机上。该仪器由一个与双通道离子色谱仪(IC)分析系统耦合的液体颗粒采样器组成。在采样积分间隔和占空比约4分钟的情况下，以下离子的灵敏度约为5PTV：氯、硝酸盐、硫酸盐、钠、铵、钾和钙。粒子被直接收集到液体中，液体被在线连续注入离子色谱仪。快速离子浓度测量将用于描述和研究来自亚洲平流的气溶胶羽流的化学特征和演化。另一个目标是通过同步空气中的化学和物理测量，量化离子组分对气溶胶光学性质的贡献程度。