Special Study - Yosemite Aerosol Characterization Study (YACS)

Background | Data | Reports | Related Websites

Background

The Yosemite Aerosol Characterization Study (YACS) was an intensive field measurement campaign conducted by a number of U.S. research groups from 15 July to 4 September 2002 at Yosemite National Park (NP), California. The objectives of the study were to

1) Determine appropriate values for converting analyzed aerosol carbon mass to ambient aerosol organic carbon mass.

2) Develop an improved understanding of the visibility-impairment-related characteristics of a smoke/organic carbon-dominated aerosol, including the role of relative humidity in modifying visibility impairment.

3) Examine the sources contributing to high aerosol organic carbon mass concentrations.

Data

Reports

Final Report: The Yosemite Aerosol Characterization Study of 2002