Parameterization of secondary organic aerosol mass fractions from smog chamber data

Charles O Stanier; Neil Donahue; Spyros N Pandis

doi:10.1016/j.atmosenv.2007.12.042

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$Parameterization of secondary organic aerosol mass fractions from smog chamber data$

Journal article

Peer reviewed

Parameterization of secondary organic aerosol mass fractions from smog chamber data

Charles O Stanier, Neil Donahue and Spyros N Pandis

Atmospheric environment (1994), Vol.42(10), pp.2276-2299

2008

DOI: 10.1016/j.atmosenv.2007.12.042

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Abstract

A framework is presented and evaluated for the parameterization of smog chamber results for use in atmospheric chemical transport models (CTMs). The parameterization uses an absorptive partitioning model to describe formation of secondary organic aerosol (SOA). The key points of the framework are (1) the ability to fit results from several types of chamber experiments; (2) the use of a basis set of surrogate compounds characterized by fixed effective saturation concentrations instead of the more commonly used variable saturation concentrations; (3) calculation of uncertainties of the estimated SOA aerosol mass fractions (AMF) outside of the fitted experimental range; and (4) determination of the best effective enthalpy to reproduced observed temperature sensitivity. The features of this data analysis and fitting framework are demonstrated using simulated data, and actual measurements from α-pinene ozonolysis experiments. Representation of SOA formation using as many as 8 surrogate compounds with fixed effective saturation concentrations is shown to be feasible and has advantages over simpler parameterizations.

Secondary organic aerosol

Parameter estimation

α-pinene

Modeling

Details

Title: Subtitle: Parameterization of secondary organic aerosol mass fractions from smog chamber data
Creators: Charles O Stanier - Department of Chemical and Biochemical Engineering, University of Iowa, 4122 Seamans Center, Iowa City, IA 52242, USA
Neil Donahue - Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA 15213, USA
Spyros N Pandis - Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA 15213, USA
Resource Type: Journal article
Publication Details: Atmospheric environment (1994), Vol.42(10), pp.2276-2299
DOI: 10.1016/j.atmosenv.2007.12.042
ISSN: 1352-2310
eISSN: 1873-2844
Publisher: Elsevier Ltd
Language: English
Date published: 2008
Academic Unit: Chemical and Biochemical Engineering
Record Identifier: 9984003975902771

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