Environmental Engineering Reference
In-Depth Information
that this augmented chemistry production led to a better simulation of total ozone
concentrations, especially in clear-sky and hot days. The production of secondary
organic aerosols is determined by the biogenic precursors. Again, the chemical
production is enhanced when more detailed tree information is used.
References
Beekmann, M., A. Kerschbaumer, E. Reimer, R. Stern, and D. Möller (2007), PM measurement
campaign HOVERT in the Greater Berlin area: model evaluation with chemically specified
particulate matter observations for a one year period, Atmos. Chem. Phys., 7, 55-68.
Köble, R., and G. Seufert (2001), Novel maps for forest tree species in Europe, Proceedings of
the 8th European Symposium on the Physico-Chemical Behaviour of Air Pollution: “A
Changing Atmosphere!”, Torino (IT), 17-20 September.
Simpson, D., W. Winiwarter, G. Börjesson, S. Cinderby, A. Ferreiro, A. Guenther, C. N. Hewitt,
R. Janson, M. A. K. Khalil, S. Owen, T. E. Pierce, H. Puxbaum, M. Shearer, U. Skiba,
R. Steinbrecher, L. Tarrason, and M. G. Öquist (1999), Inventorying emissions from nature
in Europe, J. Geophys. Res., 104 (D7), 8113-8152.
Smiatek, G. (1998), Mapping land-use for modelling biogenic and anthropogenic emissions,
Proceedings of the EUROTRAC2-Sypmosium, Garmisch-Partenkirchen.
5. Questions and Answers
S. Andreani-Aksoyoglu:
What pathways are included in SOA mechanism? How
does resolution (30 km in model, 2 km in land-use) affect the results?
Answer:
SOA-simulation is base on SORGAM-module developed by B. Schell
et al. and described in detail in Schell, B., Ackermann, I. J., Hass, H., Binkowski,
F., and Ebel, A.: Modelling the formation of secondary organic aerosol within a
comprehensive air quality model system, J. Geophys. Res., 106(D22), 28 275-
28 293, 2001. SOA formation is done from the oxidation of alkanes, alkenes,
cresol, aromatics and monoterpenes. All high-resolved information (2 km
forest-associated biogenic VOC, for example) is maintained via percentages in
the coarse resolution. So, virtually there is no information loss due to resolution.
R. Vautard:
How does your inventory compare with emissions coming from the
NATAIR - EU-project?
Answer:
The uncertainty in the NATAIR-project is estimated to be between
−100% and +200% for biogenic VOC emissions, thus our emission inventory
based on different amount of tree information in Europe is within this
uncertainty.
