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Scavenging of sea-salt aerosols by rain events over Arabian Sea during ARMEX

Chate, DM and Ali, K and Momin, GA and Rao, PSP and Praveen, PS and Safai, PD and Devara, PCS (2007) Scavenging of sea-salt aerosols by rain events over Arabian Sea during ARMEX. Atmospheric Environment, 41 (32). pp. 6739-6744.

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Scavenging coefficients are obtained for sea-salt particles at rainfall intensity of 5, 10, 15, 20 and 45 mm h-1. Evolutions of size distributions for sea-salt particles by precipitation scavenging are simulated using theoretically estimated scavenging coefficients. Results indicate that below-cloud scavenging affects mainly sea-salt particles in coarse mode. Observed concentrations of Na+ and Cl- in rainwater increased with rainfall intensity and aerosol size. Comparison of predicted concentrations of Na+ and Cl- in rainwater with observed ionic concentrations of short-timed wet-only samples collected during rain events on 2 August 2002 over Arabian Sea (ARMEX-2002) supports the model result.

Item Type: Article
Additional Information: Copyright of this article belongs to Elsevier.
Uncontrolled Keywords: Coagulation; Concentration (process); Rain; Scavenging; Size distribution; Sodium chloride, Below cloud scavenging; Ionic concentrations; Natural washout; Wet removal, Atmospheric aerosols, chloride ion; rain; sea water; sodium chloride; sodium ion, aerosol; coagulation; comparative study; rainwater; scavenging (chemistry); sea salt; sodium chloride, aerosol; air pollution; air sampling; article; atmosphere; cloud; ionic strength; pH; precipitation; priority journal; sea, Arabian Sea; Indian Ocean
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 22 Feb 2015 06:51
Last Modified: 22 Feb 2015 06:51

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