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SOFTWARES
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1. PARticle Growth And Nucleation (PARGAN) model: An inverse modeling procedure to investigate empirical aerosol population dynamics, determining the rates of – particle nucleation, particle growth (i.e. vapor concentration),
wall loss (not included for atmospheric studies) directly from measurements (i.e. independent of classical nucleation theory.
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| The PRAGAN model web interface (Verheggen, 2004) is also available at
http://iacweb.ethz.ch/php/pargan/softwares.php?site=input |
| Download
readme file |
| Download
revised PARGAN model |
Acknowledgments:
Erupe, M. E., Benson, D. R., Li, J., Young, L.-H., Verheggen, B., Al-Refai, M., Tahboub, O., Cunningham, V., Frimpong, F., Viggiano, A. A., and Lee, S.-H. (2010),Correlation of aerosol nucleation rate with sulfuric acid and ammonia in kent ohio: An atmospheric
observation,115, D23216. |
| Verheggen, B., and M. Mozurkewich (2006), An inverse modeling procedure to determine particle growth and nucleation rates from measured aerosol size distributions, Atmos. Chem. Phys., 6, 2927-2942.
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| Verheggen, B. (2004), Determination of particle nucleation and growth rates from measured aerosol size distributions, edited, Dept of Chemistry, York University, Toronto, Ontario, Canada.
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2. Igor tool for CABINEX-2009 campaign data: This Igor tool was specifically developed to merge data from different research groups from
CABINEX-2009 campaign.
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| Download
readme file |
| Download
CABINEX-2009 Igor analysis tool |
| Acknowledgments: Please acknowledge the developer's of this program: Mohammad Al-Refai, Vijay Kanawade and Shan-Hu Lee.
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3. Inversion model to calculate nucleation zone for Laboratory data:
A simple inversion model of condensational growth in the flow reactor is developed by Young et al., (2008), to determine where nucleation likely occurs in the flow tube. The inputs to the model are the aerosol size distribution and the concentration of
H2SO4 vapor as a function of the axial position in the reactor, by assuming that all particle growth occurs by condensation of H2SO4 and water in the kinetic condensation regime.
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| Download
readme file |
| Download
IDL source codes |
Acknowledgments:
Young, L. H., Benson, D. R., Rifkha, F., Pierce, J. R., Junninen, H., Kulmala, M., and Lee, S.-H.: Laboratory studies of sulfuric acid and water binary homogeneous nucleation: Evaluation of laboratory setup and preliminary results, Atmos. Chem. Phys., 8, 1-20,
2008. |
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4. Ion indicued nucleation (IIN) parameterization codes
: IIN parameterization codes are based on a steady state version of the kinetic aerosol model of Sulphuric Acid and Water Nucleation (SAWNUC) (Lovejoy et al., 2004), that uses experimentally measured thermodynamics for the ion clusters.
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| Download
readme file |
| Download
IIN paramet codes |
Acknowledgments:
Lovejoy, E. R., et al. (2004), Atmospheric ion-induced nucleation of sulfuric acid and water J. Geophys. Res., 109, D08204, doi: 08210.01029/02003JD004460
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| Modgil, M. S., et al. (2005), A parameterization of ion-induced nucleation of sulfuric acid and water for atmospheric conditions J. Geophys. Res. , 110, doi:10.1029/2004JD005475.
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5. Inversion of size distribution from Particle Sizing Magnifier (PSM):
This IDL code is made to make particle size distribution <5 nm of particles from PSM number concentrations.
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| Download
readme file |
| Download
IDL source code |
Acknowledgments:
Yu, H., R. McGraw, and S.-H. Lee, Effects of amines on formation of atmospheric sub-3 nm particles and their subsequent growth, Geophys. Res. Lett., 39, L02807, doi: 10.1021/2011GL050099 (2012).
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Acknowledgements: funding support from NSF (CAREER ATM-0645567, ATM-0904144), NOAA (NA08OAR4310537), and Ohio Board Regents
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