Chapter 5
Effects of Using Two Different Biogenic
Emission Models on Ozone and Particles
in Europe
Jianhui Jiang, Sebnem Aksoyoglu, Giancarlo Ciarelli,
Emmanouil Oikonomakis and André S. H. Prévôt
Abstract In this paper, we discuss the importance of biogenic volatile organic compound (BVOC) emissions used in air quality simulations and how the model results
are affected by the choice of the BVOC emission model. The European air quality
in 2011 was simulated using CAMx regional air quality model with two different
BVOC emission models: PSI-model and MEGAN. Especially isoprene and monoterpene emissions calculated by the two models differed significantly both in amounts
and their spatial distribution. In general, MEGAN produced much higher isoprene
emissions while PSI-model generated more monoterpene emissions. The difference
in emissions between the two models was shown to be as high as a factor of 3 in
summer. The choice of the BVOC emission model had significant consequences
especially on the formation of organic aerosols as well as on ozone and inorganic
aerosols. Using MEGAN led to relatively higher ozone concentrations in summer
while much more SOA (secondary organic aerosol) was formed when PSI-model
was applied. Our results suggest that the amount and spatial distribution of BVOC
emissions might affect the oxidant concentrations (OH and nitrate radicals, ozone)
leading to significant differences in SOA, ozone, particulate nitrate and sulfate concentrations calculated by different BVOC emission models.
J. Jiang · S. Aksoyoglu (B) · E. Oikonomakis · A. S. H. Prévôt
Laboratory of Atmospheric Chemistry (LAC), Paul Scherrer Institute, 5232 Villigen PSI,
Switzerland
e-mail: sebnem.aksoyoglu@psi.ch
J. Jiang
e-mail: jianhui.jiang@psi.ch
E. Oikonomakis
e-mail: emmanouil.oikonomakis@psi.ch
A. S. H. Prévôt
e-mail: andre.prevot@psi.ch
G. Ciarelli
Laboratoire Inter-Universitaire des Systèmes Atmosphériques (LISA), UMR CNRS 7583,
Université Paris Est Créteil et Université Paris Diderot, Institut Pierre Simon Laplace, Créteil,
France
e-mail: giancarlo.ciarelli@lisa.u-pec.fr
© Springer Nature Switzerland AG 2020
C. Mensink et al. (eds.), Air Pollution Modeling and its Application XXVI,
Springer Proceedings in Complexity,
https://doi.org/10.1007/978-3-030-22055-6_5
29
Effects of Using Two Different Biogenic
Emission Models on Ozone and Particles
in Europe
Jianhui Jiang, Sebnem Aksoyoglu, Giancarlo Ciarelli,
Emmanouil Oikonomakis and André S. H. Prévôt
Abstract In this paper, we discuss the importance of biogenic volatile organic compound (BVOC) emissions used in air quality simulations and how the model results
are affected by the choice of the BVOC emission model. The European air quality
in 2011 was simulated using CAMx regional air quality model with two different
BVOC emission models: PSI-model and MEGAN. Especially isoprene and monoterpene emissions calculated by the two models differed significantly both in amounts
and their spatial distribution. In general, MEGAN produced much higher isoprene
emissions while PSI-model generated more monoterpene emissions. The difference
in emissions between the two models was shown to be as high as a factor of 3 in
summer. The choice of the BVOC emission model had significant consequences
especially on the formation of organic aerosols as well as on ozone and inorganic
aerosols. Using MEGAN led to relatively higher ozone concentrations in summer
while much more SOA (secondary organic aerosol) was formed when PSI-model
was applied. Our results suggest that the amount and spatial distribution of BVOC
emissions might affect the oxidant concentrations (OH and nitrate radicals, ozone)
leading to significant differences in SOA, ozone, particulate nitrate and sulfate concentrations calculated by different BVOC emission models.
J. Jiang · S. Aksoyoglu (B) · E. Oikonomakis · A. S. H. Prévôt
Laboratory of Atmospheric Chemistry (LAC), Paul Scherrer Institute, 5232 Villigen PSI,
Switzerland
e-mail: sebnem.aksoyoglu@psi.ch
J. Jiang
e-mail: jianhui.jiang@psi.ch
E. Oikonomakis
e-mail: emmanouil.oikonomakis@psi.ch
A. S. H. Prévôt
e-mail: andre.prevot@psi.ch
G. Ciarelli
Laboratoire Inter-Universitaire des Systèmes Atmosphériques (LISA), UMR CNRS 7583,
Université Paris Est Créteil et Université Paris Diderot, Institut Pierre Simon Laplace, Créteil,
France
e-mail: giancarlo.ciarelli@lisa.u-pec.fr
© Springer Nature Switzerland AG 2020
C. Mensink et al. (eds.), Air Pollution Modeling and its Application XXVI,
Springer Proceedings in Complexity,
https://doi.org/10.1007/978-3-030-22055-6_5
29