Non-sea-salt-sulphate formation in sea-salt aerosol
نویسندگان
چکیده
منابع مشابه
Laboratory measurements of the optical properties of sea salt aerosol
The extinction spectra of laboratory generated sea salt aerosols have been measured from 1 µm to 20 µm using a Bruker 66v/S FTIR spectrometer. Concomitant measurements include temperature, pressure, relative humidity and the aerosol size distribution. The refractive indices of the sea salt have been determined using a simple har-5 monic oscillator band model (Thomas et al., 2004) for aerosol wi...
متن کاملSulfate Formation in Sea-Salt Aerosols: Constraints from Oxygen Isotopes
[1] We use observations of the mass-independent oxygen isotopic composition (DO) of sulfate in the marine boundary layer (MBL) to quantify the sulfate source from aqueous SO2 (S(IV)) oxidation by O3 in alkaline sea-salt aerosols. Oxidation by O3 imparts a large DO signature to the resulting sulfate (8.8%) relative to oxidation by H2O2 (0.9%) or by OH or O2 (0%). Ship data from two Indian Ocean ...
متن کاملIntegrating biomass, sulphate and sea-salt aerosol responses into a microphysical chemical parcel model: implications for climate studies.
Aerosols are known to influence significantly the radiative budget of the Earth. Although the direct effect (whereby aerosols scatter and absorb solar and thermal infrared radiation) has a large perturbing influence on the radiation budget, the indirect effect (whereby aerosols modify the microphysical and hence the radiative properties and amounts of clouds) poses a greater challenge to climat...
متن کاملParameterization of sea-salt optical properties
Parameterization of sea-salt optical properties and physics of the associated radiative forcing J. Li, X. Ma, K. von Salzen, and S. Dobbie Canadian Centre For Climate Modelling and Analysis, Science and Technology Branch, Environment Canada, University of Victoria, Victoria, British Columbia, Canada Inst. for Atmospheric Science, School of Earth and Environment, Univ. of Leeds, Leeds, UK Receiv...
متن کاملModelling the contribution of sea salt and dimethyl sulfide derived aerosol to marine CCN
The concentration of cloud condensation nuclei (CCN) in the marine boundary layer (MBL) was estimated from dimethyl sulfide (DMS) flux, sea salt (SS) emission, and aerosols entrained from the free troposphere (FT). Only under clean air conditions, did the nucleation of DMS derived sulfur (DMS CCN) contribute significantly to the MBL CCN. The accommodation coefficient for sulfuric acid mass tran...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Atmospheres
سال: 1998
ISSN: 0148-0227
DOI: 10.1029/98jd02595