Journal of Atmospheric Pollution
ISSN (Print): 2381-2982 ISSN (Online): 2381-2990 Website: Editor-in-chief: Ki-Hyun Kim
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Journal of Atmospheric Pollution. 2013, 1(1), 1-4
DOI: 10.12691/jap-1-1-1
Open AccessArticle

The Relaxed Eddy Accumulation for Estimating Aerosols Dry Deposition above Tropical Forest

Kan Khoomsab1, and Pojanie Khummongkol2

1Biology Program, Faculty of Science and Technology, Phetchabun Rajabhat University, Phetchabun, Thailand

2Division of Environmental Technology, School of Energy, Environment and Materials, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand

Pub. Date: November 04, 2013

Cite this paper:
Kan Khoomsab and Pojanie Khummongkol. The Relaxed Eddy Accumulation for Estimating Aerosols Dry Deposition above Tropical Forest. Journal of Atmospheric Pollution. 2013; 1(1):1-4. doi: 10.12691/jap-1-1-1


The relaxed eddy accumulation (REA) method was applied to estimate dry deposition fluxes and velocities of SO42- and NO3- above a tropical forest. The monthly measured concentration of NO3- was found to be greater than that of SO42-. The average dry deposition flux of NO3- was found to be greater than that of SO42. The average deposition velocities of sulfate were evaluated to be 0.30 cm s-1 during the day and 0.22 cm s-1 at night, while the highest deposition velocities of nitrate were 0.93 cm s-1 during the day and 0.54 cm s-1 at night. The deposition velocities of aerosols (SO42- and NO3-), calculated by using the resistance model, were found to be 0.49 cm s-1 during the day and 0.29 cm s-1 at night.

aerosols dry deposition relaxed eddy accumulation tropical forest

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