| PI Name: | Fred Brechtel |
|---|---|
| Co-Investigators: | Dan Imre |
| Proposal Title: | Aerosol Measurements at Cheju Island During ACE-Asia: Aerosol Number Size Distributions, Particle Hygroscopicity, and Individual Particle Size and Chemical Composition |
| Proposal Synopsis: | In-situ, real-time measurements of individual particle chemical composition by Time-of-Flight Mass Spectroscopy (TOF-MS) and particle size distributions over the size range from 3 nm to 50 micrometers are proposed at Cheju Island, Korea during the Aerosol Characterization Experiment-Asia (ACE-Asia). Simultaneous measurements of size-resolved particle hygroscopicity, volatility, and surface characteristics using a Tandem Differential Mobility Analyzer (TDMA) system will be conducted during intensive experiments during the ACE-Asia sampling period. The TOF-MS and TDMA measurement systems will be integrated to establish quantitative relationships between single particle composition and size-resolved physical and hygroscopic properties. These measurements will provide critical information for model validation with respect to the evolution of the aerosol physical and chemical size distribution, particularly during periods when Asian dust and anthropogenic pollutants are transported to the remote Pacific Ocean. |