bruce rolstad denby fairmode 4 th plenary, norrkjoping sweden june 2011

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 emilia.georgieva@jrc.ec.europa.eu JRC ISPRA Chapter 5, particularly 5.3Bruce Rolstad Denby Bruce.denby@nilu.no NILU All chaptersNagl Christian

Gudrun Stranner

Friedrich Poetscher

Stephan Poupa

christian.nagl@umweltbundesamt.at

gudrun.stranner@umweltbundesamt.at

friedrich.poetscher@umweltbundesamt.at

stephan.poupa@umweltbundesamt.at

UBA Chapter 4, Emissions, 4.4, 4.5, 4.6 and table. Appendix A2.1

Panagiota Dilara panagiota.dilara@jrc.ec.europa.eu JRC ISPRA Chapter 4, Emissions. Some corrections and inclusions.Jongen Suzanne suzanne.jongen@vito.be VITO Inclusion of VITO related models. Provided information on

MIMOSA 4 Addo van Pul

Joost Wesseling

addo.van.pul@rivm.nl

Joost.Wesseling@rivm.nl

RIVM Contributions on NO2 chemistry modelling. Chapter 3.3. Variety of comments on NL perspectives.

John Stedman John.Stedman@aeat.co.uk AEA Comments and additions mostly concerning NO2/NOx emission ratio.

Helge Rørdam Olesen hro@dmu.dk NERI Comments in chapters 2 and 3. Detailed description of OML chemistry.

Dietmar Öttl

Ulf Janicke

dietmar.oettl@stmk.gv.at

uj@janicke.de

STMK

Janicke Consulting

Section 2.3 Lagrangian particle modelling.

David Carruthers

Martin Seaton

David.Carruthers@cerc.co.uk

martin.seaton@cerc.co.uk

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 linton.corbet@chmi.cz CHMI Contributions and corrections to Sectors 3.4Lia Fragkou

John Douros

lia@aix.meng.auth.gr

jdouros@aix.meng.auth.gr

AUTH Significant contributions to Chapters 2 and 4 and Source apportionment Chapter 6.3

Niemi Jarkko Jarkko.Niemi@hsy.fi HSY Recommended inclusion of AERMOD and other EPA models

Rafael Borge

Julio Lumbreras

rborge@etsii.upm.es

jlumbreras@etsii.upm.es

UPM Comments on Chapter 2 and significant content in Chapter 4

Philip Thunis philippe.thunis@jrc.ec.europa.eu 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 bde@nilu.no– 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 (miranda@ua.pt)

Helge Rørdam Olesen (hro@dmu.dk)

Chapter 1: Introduction

Chapter 2: Dispersion STEFANO GALMARINI (stefano.galmarini@jrc.ec.europa.eu)

BERTRAND BESSAGNET (bertrand.bessagnet@ineris.fr)Chapter 3: Chemistry

Appendix 1

Chapter 4: Emissions

Appendix 2

Rafael Borge (rborge@etsii.upm.es)

Julio Lumbreras (jlumbreras@etsii.upm.es)

Chapter 5: Meteorology

Chapter 6: Applications

Chapter 7: Quality assurance

http://fairmode.ew.eea.europa.eu/

For information and contributions contactBruce Rolstad Denby

bde@nilu.no