Please use this identifier to cite or link to this item: https://doi.org/10.1007/s10874-008-9118-x
DC FieldValue
dc.titleRain-aerosol coupling in the tropical atmosphere of Southeast Asia: Distribution and scavenging ratios of major ionic species
dc.contributor.authorHe, J.
dc.contributor.authorBalasubramanian, R.
dc.date.accessioned2014-10-08T08:33:30Z
dc.date.available2014-10-08T08:33:30Z
dc.date.issued2008-07
dc.identifier.citationHe, J., Balasubramanian, R. (2008-07). Rain-aerosol coupling in the tropical atmosphere of Southeast Asia: Distribution and scavenging ratios of major ionic species. Journal of Atmospheric Chemistry 60 (3) : 205-220. ScholarBank@NUS Repository. https://doi.org/10.1007/s10874-008-9118-x
dc.identifier.issn01677764
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/87610
dc.description.abstractBoth aerosol and rainwater samples were collected and analyzed for ionic species at a coastal site in Southeast Asia over a period of 9 months (January-September 2006) covering different monsoons. In general, the occurrence and distribution of ionic species showed a distinct seasonal variation in response to changes in air mass origins. Real-time physical characterization of aerosol particles during rain events showed changes in particle number distributions which were used to assess particle removal processes associated with precipitation, or scavenging. The mean scavenging coefficients for particles in the range 10-500 nm and 500-10 μm were 7. 0∈×∈10-5∈±∈2. 8∈×∈10-5 s-1 and 1. 9∈×∈10-4∈±∈1. 6∈×∈10-5 s-1, respectively. A critical analysis of the scavenging coefficients obtained from this study suggested that the wet removal of aerosol particles was greatly influenced by rain intensity, and was particle size-dependent as well. The scavenging ratios, another parameter used to characterize particle removal processes by precipitation, for NH4 +, Cl-, SO4 2-, and NO3 - were found to be higher than those of Na +, K+, and Ca2+ of oceanic and crustal origins. This enrichment implied that gaseous species NH3, HCl, and HNO 3 could also be washed out readily. These additional sources of ions in precipitation presumably counter-balanced the dilution effect caused by high total precipitation volume in the marine and tropical area. © 2009 Springer Science+Business Media B.V.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1007/s10874-008-9118-x
dc.sourceScopus
dc.subjectAerosol composition
dc.subjectRainwater composition
dc.subjectScavenging coefficients
dc.subjectScavenging ratios
dc.typeArticle
dc.contributor.departmentDIVISION OF ENVIRONMENTAL SCIENCE & ENGG
dc.description.doi10.1007/s10874-008-9118-x
dc.description.sourcetitleJournal of Atmospheric Chemistry
dc.description.volume60
dc.description.issue3
dc.description.page205-220
dc.description.codenJATCE
dc.identifier.isiut000265820000002
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

27
checked on Dec 7, 2021

WEB OF SCIENCETM
Citations

28
checked on Dec 7, 2021

Page view(s)

396
checked on Dec 2, 2021

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.