Aerosol light scattering measurements as a function of relative humidity: a comparison between measurements made at three different sites
Day DE and Malm WC. 2001. Aerosol light scattering measurements as a function of relative humidity: a comparison between measurements made at three different sites. Atmospheric Environment. 35:5169-5176
Analysts examine the hygroscopic nature of ambient aerosols and the impact that aerosol growth by water uptake has on radiation transfer through the atmosphere, specifically the results of scattering coefficient measurements as a function of relative humidity at three national parks: Great Smoky Mountains, Grand Canyon, and Big Bend National Parks. The study indicates that for all three Parks, there is a considerable variability in the magnitude of the growth factor for a given RH value. When the fractions of organic carbon and soil were high, the growth factor curves were low. According to the researchers, this suggests that soil compounds and organic carbon compounds generally do not contribute as much as inorganic salts to aerosol water uptake.
- Type
- Journal Article
- Authors
- Day, Derek; Malm, William
- Units
- ARD , BIBE , GRCA , GRSM
- Keywords
- Aerosol, AIRBIB, ARD_Park-Air-Info_Collection, Deliquescence, Deposition, Haze, Hygroscopic aerosol, Nitrogen, Scattering coefficient, Sulfur, Visibility