bruce rolstad denby fairmode 4 th plenary, norrkjoping sweden june 2011
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Modelling of Nitrogen Dioxide (NO 2 ) for air quality assessment and planning relevant to the European Air Quality Directive : WG1 Guidance document. FAIRMODE. Forum for air quality modelling in Europe. Bruce Rolstad Denby FAIRMODE 4 th Plenary, Norrkjoping Sweden June 2011. - PowerPoint PPT PresentationTRANSCRIPT
Modelling of Nitrogen Dioxide (NO2) for air quality assessment and planning relevant to
the European Air Quality Directive: WG1 Guidance document
Bruce Rolstad Denby
FAIRMODE 4th Plenary, Norrkjoping SwedenJune 2011
FAIRMODEForum for air quality modelling in Europe
Aim of the document• Provide more detailed guidance for NO2 modelling,
beyond the ‘Reference guide for modelling’ (EEA TR)• Provide a focal point for an overview of modelling • To provide recommendations for good practise in
NO2 modelling
• Provide a link to models and the modelling community through the MDS
Content• 1 Introduction• 2 Dispersion modelling• 3 Chemistry modelling• 4 Emission data and inventories• 5 Meteorological data• 6 Modelling applications for the AQ Directive• References• Appendix
– 1: Short description of parameterised “NOX to NO2” chemistry schemes
– 2: Short description of manuals and tools for calculating emission inventories
ContributorsContributor email Institute Comments
Emilia Georgieva [email protected] JRC ISPRA Chapter 5, particularly 5.3Bruce Rolstad Denby [email protected] NILU All chaptersNagl Christian
Gudrun Stranner
Friedrich Poetscher
Stephan Poupa
UBA Chapter 4, Emissions, 4.4, 4.5, 4.6 and table. Appendix A2.1
Panagiota Dilara [email protected] JRC ISPRA Chapter 4, Emissions. Some corrections and inclusions.Jongen Suzanne [email protected] VITO Inclusion of VITO related models. Provided information on
MIMOSA 4 Addo van Pul
Joost Wesseling
RIVM Contributions on NO2 chemistry modelling. Chapter 3.3. Variety of comments on NL perspectives.
John Stedman [email protected] AEA Comments and additions mostly concerning NO2/NOx emission ratio.
Helge Rørdam Olesen [email protected] NERI Comments in chapters 2 and 3. Detailed description of OML chemistry.
Dietmar Öttl
Ulf Janicke
STMK
Janicke Consulting
Section 2.3 Lagrangian particle modelling.
David Carruthers
Martin Seaton
CERC Comments and additions to Sections 2.1, 2.2, 2.3, 2.4, 2.5, 3.1, 3.2, 4 and Appendix 1
Linton Corbet [email protected] CHMI Contributions and corrections to Sectors 3.4Lia Fragkou
John Douros
AUTH Significant contributions to Chapters 2 and 4 and Source apportionment Chapter 6.3
Niemi Jarkko [email protected] HSY Recommended inclusion of AERMOD and other EPA models
Rafael Borge
Julio Lumbreras
UPM Comments on Chapter 2 and significant content in Chapter 4
Philip Thunis [email protected] JRC ISPRA Chapter 7.2 Validation of models
Some points
• Tries to provide real recommendations on NO2 modelling, however, does not recommend individual models
• Includes direct links to the Model Documentation System (MDS)
• Contains a short overview of parameterised “NOX to NO2” chemistry schemes
• Provides overview ’fitness for purpose tables’ for chemistry and dispersion modelling
Fitness for purpose - dispersion
Model types and applications
Gaussian models Lagrangian particle models
Obstacle resolving Eulerian models
(CFD/LES)
Terrain resolving Eulerian models
(NWF)
Open roadsNo obstacles,
computationally expensive
Poor resolution
Street canyonIn combination with parameterised wind
field model
In combination with parameterised wind
field model
Computationally expensive
Intensive computationally
Urban scaleRequires
homogenous meteorology
Computationally expensive
Not computationally feasible
Regional scaleRequires
homogenous meteorology
Computationally expensive
Not computationally feasible
Fitness for purpose - chemistryChemical
schemes and applications
Empirical schemes Photo-stationary and ozone limitting
schemes
Distance from source and mixing
schemes
Reduced photochemical
schemes
Full photochemical schemes
Assessment
Street level Given sufficient observations
Overestimates NO2 in the presence of ozone
Difficult to apply at this scale. CFD only
Only reduced schemes necessary
Urban scale Given sufficient observations
Suitable for winter or low hydrocarbons
Regional scale Missing significant chemistry
Planning
Street level
Only if scheme includes ozone and
NO2 primary emissions
Sensitivity to ozone and NO2 emissions
represented
Difficult to apply at this scale. CFD only
Only reduced schemes necessary
Urban scale
Only if scheme includes ozone and
NO2 primary emissions
Suitable with low light or hydrocarbons
Suitable with low light or
hydrocarbons
Regional scale Missing significant chemistry
Process further• This meeting:
– volunteers for review– additional comments and contributions welcome from all
• Reviews and comments to be submitted to [email protected]– August 31, 2011
• Presentation Harmo14, Kos– October 6, 2011
• Final draft to be published as ETC TR– October 31, 2011
Review and improvementPerson Reviewers Contributions
General: whole document Ana Isabel Miranda ([email protected])
Helge Rørdam Olesen ([email protected])
Chapter 1: Introduction
Chapter 2: Dispersion STEFANO GALMARINI ([email protected])
BERTRAND BESSAGNET ([email protected])Chapter 3: Chemistry
Appendix 1
Chapter 4: Emissions
Appendix 2
Rafael Borge ([email protected])
Julio Lumbreras ([email protected])
Chapter 5: Meteorology
Chapter 6: Applications
Chapter 7: Quality assurance
http://fairmode.ew.eea.europa.eu/
For information and contributions contactBruce Rolstad Denby