Parameterizations for sulfuric acid/water nucleation rates

Parameterizations for sulfuric acid/water nucleation rates

We present parameterized equations for calculation of sulfuric acid/water critical nucleus compositions and homogeneous nucleation rates. The parameterizations are in agreement with the thermodynamically consistent version of classical binary homogeneous nucleation theory [Wilemski, 1984] incorporat...

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Veröffentlicht in:Journal of Geophysical Research 1998-04, Vol.103 (D7), p.8301-8307
Hauptverfasser: Kulmala, Markka, Laaksonen, Ari, Pirjola, Liisa
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Earth, ocean, space
Exact sciences and technology
External geophysics
Meteorology
Particles and aerosols
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container_title Journal of Geophysical Research
container_volume 103
creator Kulmala, Markka
Laaksonen, Ari
Pirjola, Liisa
description We present parameterized equations for calculation of sulfuric acid/water critical nucleus compositions and homogeneous nucleation rates. The parameterizations are in agreement with the thermodynamically consistent version of classical binary homogeneous nucleation theory [Wilemski, 1984] incorporating the hydration effect. The new parameterizations produce nucleation rates that differ by several orders of magnitude from the rates predicted by other parameterizations available in the literature. Model simulations of atmospheric aerosol formation show that the use of the new parameterizations may in some cases result in simulated nucleation mode particle number densities that are by a factor of 1000 lower than those obtained using the old parameterizations.
doi_str_mv 10.1029/97JD03718
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Geophys. Res</addtitle><description>We present parameterized equations for calculation of sulfuric acid/water critical nucleus compositions and homogeneous nucleation rates. The parameterizations are in agreement with the thermodynamically consistent version of classical binary homogeneous nucleation theory [Wilemski, 1984] incorporating the hydration effect. The new parameterizations produce nucleation rates that differ by several orders of magnitude from the rates predicted by other parameterizations available in the literature. 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subjects Earth, ocean, space
Exact sciences and technology
External geophysics
Meteorology
Particles and aerosols
title Parameterizations for sulfuric acid/water nucleation rates
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