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Influence of physical parameterization changes in the ALARO high resolution NWP model for Belgium on the CTM CHIMERE

Andy Delcloo (UGent) , Rafiq Hamdi (UGent) , Alex Deckmyn (UGent) , Piet Termonia (UGent) , Hugo De Backer (UGent) and Herman Van Langenhove (UGent)
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Abstract
At the Royal Meteorological Institute of Belgium the chemical transport model (CTM) CHIMERE runs at a spatial resolution of 7 km. The CTM is first run on a coarse resolution of 50 km covering Western Europe. As a NWP input, the meteorological fields of ECMWF are consulted. The emission database is provided by EMEP. This model run is used as input for the boundary conditions for the coupled high resolution (7 km) chemical transport model run. This one-way nested coupling with the high resolution limited area NWP model ALARO (spatial resolution of 7 km) improved already significantly the modelling of ozone concentrations by improving the physical parameterization, i.e. cloud cover, surface temperature, surface sensible heat flux, surface latent heat flux and relative humidity fields. The model domain of ALARO covers Belgium and the Netherlands (680 X 680 km(2)). The emission database used as input for this high-resolution model is the TNO/GEMS emission database (Visschedijk AJH, Zandveld PYJ, Denier van der Gon HACA, High resolution gridded European database for the EU integrate project GEMS, TNO-report 2007-A-R0233/B, 2007). We will present the influence from the improved physical parameterizations of the NWP model on air quality model forecast performance for two different time periods. Also the influence on the implementation of a new surface scheme (SURFEX including The Town Energy Balance (TEB) scheme) in the NWP limited area model will be shown.
Keywords
Ozone, Chimere-model, Town-Energy-Balance

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MLA
Delcloo, Andy, Rafiq Hamdi, Alex Deckmyn, et al. “Influence of Physical Parameterization Changes in the ALARO High Resolution NWP Model for Belgium on the CTM CHIMERE.” NATO Science for Peace and Security Series C-Environmental Security. Ed. Douw G Steyn, Peter JH Builtjes, & Renske MA Timmermans. Dordrecht, The Netherlands: Springer, 2014. 369–373. Print.
APA
Delcloo, A., Hamdi, R., Deckmyn, A., Termonia, P., De Backer, H., & Van Langenhove, H. (2014). Influence of physical parameterization changes in the ALARO high resolution NWP model for Belgium on the CTM CHIMERE. In D. G. Steyn, P. J. Builtjes, & R. M. Timmermans (Eds.), NATO Science for Peace and Security Series C-Environmental Security (pp. 369–373). Presented at the 32nd NATO/SPS international technical meeting on Air Pollution Modeling and its Application, Dordrecht, The Netherlands: Springer.
Chicago author-date
Delcloo, Andy, Rafiq Hamdi, Alex Deckmyn, Piet Termonia, Hugo De Backer, and Herman Van Langenhove. 2014. “Influence of Physical Parameterization Changes in the ALARO High Resolution NWP Model for Belgium on the CTM CHIMERE.” In NATO Science for Peace and Security Series C-Environmental Security, ed. Douw G Steyn, Peter JH Builtjes, and Renske MA Timmermans, 369–373. Dordrecht, The Netherlands: Springer.
Chicago author-date (all authors)
Delcloo, Andy, Rafiq Hamdi, Alex Deckmyn, Piet Termonia, Hugo De Backer, and Herman Van Langenhove. 2014. “Influence of Physical Parameterization Changes in the ALARO High Resolution NWP Model for Belgium on the CTM CHIMERE.” In NATO Science for Peace and Security Series C-Environmental Security, ed. Douw G Steyn, Peter JH Builtjes, and Renske MA Timmermans, 369–373. Dordrecht, The Netherlands: Springer.
Vancouver
1.
Delcloo A, Hamdi R, Deckmyn A, Termonia P, De Backer H, Van Langenhove H. Influence of physical parameterization changes in the ALARO high resolution NWP model for Belgium on the CTM CHIMERE. In: Steyn DG, Builtjes PJ, Timmermans RM, editors. NATO Science for Peace and Security Series C-Environmental Security. Dordrecht, The Netherlands: Springer; 2014. p. 369–73.
IEEE
[1]
A. Delcloo, R. Hamdi, A. Deckmyn, P. Termonia, H. De Backer, and H. Van Langenhove, “Influence of physical parameterization changes in the ALARO high resolution NWP model for Belgium on the CTM CHIMERE,” in NATO Science for Peace and Security Series C-Environmental Security, Utrecht, The Netherlands, 2014, pp. 369–373.
@inproceedings{5787829,
  abstract     = {At the Royal Meteorological Institute of Belgium the chemical transport model (CTM) CHIMERE runs at a spatial resolution of 7 km. The CTM is first run on a coarse resolution of 50 km covering Western Europe. As a NWP input, the meteorological fields of ECMWF are consulted. The emission database is provided by EMEP. This model run is used as input for the boundary conditions for the coupled high resolution (7 km) chemical transport model run. 
This one-way nested coupling with the high resolution limited area NWP model ALARO (spatial resolution of 7 km) improved already significantly the modelling of ozone concentrations by improving the physical parameterization, i.e. cloud cover, surface temperature, surface sensible heat flux, surface latent heat flux and relative humidity fields. 
The model domain of ALARO covers Belgium and the Netherlands (680 X 680 km(2)). The emission database used as input for this high-resolution model is the TNO/GEMS emission database (Visschedijk AJH, Zandveld PYJ, Denier van der Gon HACA, High resolution gridded European database for the EU integrate project GEMS, TNO-report 2007-A-R0233/B, 2007). 
We will present the influence from the improved physical parameterizations of the NWP model on air quality model forecast performance for two different time periods. Also the influence on the implementation of a new surface scheme (SURFEX including The Town Energy Balance (TEB) scheme) in the NWP limited area model will be shown.},
  author       = {Delcloo, Andy and Hamdi, Rafiq and Deckmyn, Alex and Termonia, Piet and De Backer, Hugo and Van Langenhove, Herman},
  booktitle    = {NATO Science for Peace and Security Series C-Environmental Security},
  editor       = {Steyn, Douw G and Builtjes, Peter JH and Timmermans, Renske MA},
  isbn         = {9789400755772},
  issn         = {1871-4668},
  keywords     = {Ozone,Chimere-model,Town-Energy-Balance},
  language     = {eng},
  location     = {Utrecht, The Netherlands},
  pages        = {369--373},
  publisher    = {Springer},
  title        = {Influence of physical parameterization changes in the ALARO high resolution NWP model for Belgium on the CTM CHIMERE},
  url          = {http://dx.doi.org/10.1007/978-94-007-5577-2_62},
  year         = {2014},
}

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