Modelling atmospheric OH-reactivity in a boreal forest ecosystem
Item
Title (Dublin Core)
Modelling atmospheric OH-reactivity in a boreal forest ecosystem
Description (Dublin Core)
We have modelled the total atmospheric OH-reactivity in a boreal forest and investigated the individual contributions from gas phase inorganic species, isoprene, monoterpenes, and methane along with other important VOCs. Daily and seasonal variation in OH-reactivity for the year 2008 was examined as well as the vertical OH-reactivity profile. We have used SOSA; a one dimensional vertical chemistry-transport model (Boy et al., 2011a) together with measurements from Hyytiälä, SMEAR II station, Southern Finland, conducted in August 2008. Model simulations only account for ~30–50% of the total measured OH sink, and in our opinion, the reason for missing OH-reactivity is due to unmeasured unknown BVOCs, and limitations in our knowledge of atmospheric chemistry including uncertainties in rate constants. Furthermore, we found that the OH-reactivity correlates with both organic and inorganic compounds and increases during summer. The summertime canopy level OH-reactivity peaks during night and the vertical OH-reactivity decreases with height.
Creator (Dublin Core)
Mogensen, D.
Smolander, S.
Sogachev, A.
Zhou, L.
Sinha, V.
Guenther, A.
Williams, J.
Nieminen, T.
Kajos, M. K.
Rinne, J.
Kulmala, M.
Boy, M.
Date (Dublin Core)
2018-01-15
Type (Dublin Core)
Text
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
10.5194/acp-11-9709-2011
https://acp.copernicus.org/articles/11/9709/2011/
Source (Dublin Core)
eISSN: 1680-7324
Language (Dublin Core)
eng
