Atmospheric transport model applied to understand the effect of biogenic emissions to secondary atmospheric aerosol in hemiboreal zone Online publication date: Wed, 19-Nov-2014
by Ardi Loot; Riinu Ots; Marko Kaasik; Hilja Iher
International Journal of Environment and Pollution (IJEP), Vol. 50, No. 1/2/3/4, 2012
Abstract: The SILAM model with built-in isoprene and monoterpene emission module from natural sources was run for May to August 2006 in Baltic Sea region. In this study VOCs were advected as passive tracers. Modelled hourly VOC-tracer concentrations were compared with sub-half-micrometre aerosol concentrations, simultaneously measured in Preila (Lithuania), Tahkuse (Estonia), Hyytiälä (southern Finland) and Värriö (northern Finland). Linear correlation coefficients between measured and modelled concentrations were found in range 0.45 to 0.72. Bilinear regression result, based on summary monoterpenes and sulphate (AQME II model run, FMI), is even better correlated with aerosol: coefficients from 0.58 to 0.83. Thus, biogenic VOCs and sulphates are likely two major contributors to the sub-half-micron aerosol in the Nordic-Baltic region. This study demonstrates that a state-of-art advection-diffusion model with proper emission database is capable to predict the accumulation mode aerosol concentrations in the atmosphere. More research in aerosol dynamics is needed to refine the results.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Environment and Pollution (IJEP):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com