The Dry Deposition of Nitrogen and Sulfur Compounds During BRACE 2002
Abstract
During the 2002 Bay Regional Atmospheric Chemistry Experiment (BRACE) that was conducted in May, the conditional sampling method was used to measure the fluxes of nitric acid vapor, ammonia, and fine sulfate and nitrate aerosol. Annular denuders and filterpacks were used as collectors of the gases and aerosols in the "updrafts" and "downdrafts" during 4 hour runs from from which the concentrations and fluxes were determined. The fluxes of water, CO2, sensible heat and ozone were also determined using the eddy covariance method. These measurements were conducted at a grassland site location near the water treatment facility east of Tampa Bay near Sydney, Florida. Comparisons of concentrations with other measurement systems as well as an assessment of the daytime deposition velocities of the gases and aerosols will be presented.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2003
- Bibcode:
- 2003AGUFM.A51A..05M
- Keywords:
-
- 0305 Aerosols and particles (0345;
- 4801);
- 0315 Biosphere/atmosphere interactions;
- 0322 Constituent sources and sinks