2005 CHIMERE Workshop 1

Project :Regional applications of CHIMERE in

the Nord Pas de Calais

Nollet Valérie, PC2A, UMR 8522, Université des Sciences et Technologies de Lille

2005 CHIMERE Workshop 2

The PC2A research laboratory

The team

Projects using CHIMERE

Presentation

2005 CHIMERE Workshop 3

Physicochimie des Processusde Combustion et de l’Atmosphère

Unité Mixte de Recherche CNRS/USTL - UMR 8522

Université des Sciences et Technologies de Lille

2005 CHIMERE Workshop 4

Homogeneous and heterogeneous atmospheric kinetics

Laser diagnostics and chemical mechanisms

Chemical kinetics and combustion in engines

Atmospheric physical chemistry : metrology and modelingAtmospheric physical chemistry : metrology and modeling

4 operations of research

2005 CHIMERE Workshop 5

The PC2A research laboratory

The team

Projects using CHIMERE

Presentation

2005 CHIMERE Workshop 6

The team : Atmospheric physical chemistryAtmospheric physical chemistry 3 standing researchers

• DÉCHAUX JC (PR) • NOLLET V (MCF)• HANOUNE B (CR)

• Caplain I. (Ph. D. Student)• 2 masters

2 interdependent research orientations

Emissions and atmospheric measurements

Emission inventories and air quality modeling

2005 CHIMERE Workshop 7

Emission inventories Air quality modeling

Spatializationwith GIS ArcView

Gridded with VBA

Gridded emissions

Emission data bases

Spatial data bases Since 1994 : Modeling using the

UAM (Urban Airshed Model)

H orizontal regular m esh

Time variation of layersthickness

M ixing height

Transport

Transport

Chem istry

Chem istry

Chem istry

Chem istry

Drydeposition

Ground level

Severalhundredsof meters

1 to 10kilometers

Elevated sources

Elevated sources

Elevated sources

Ground levelemissions

Today : Projects in development using CHIMERE

2005 CHIMERE Workshop 8

The PC2A research laboratory

The team

Projects using CHIMERE

Presentation

2005 CHIMERE Workshop 9

Project IRENI (sub project 2B - action 1 - axis 1)• Modeling of reactivity and dispersion of atmospheric

pollutants in the Nord pas de Calais. Industrial emissions study on the french coastal Channel area

Project INRETS • Modeling assessment of the role of vehicular emissions in

the formation of tropospheric ozone and related species

Project CERPA• Mapping Aerosol Risk Indices

Regional projects using CHIMERE

2005 CHIMERE Workshop 10

Project IRENI (Institut de Recherches en Environnement Industriel)

Collaborations :

PC2A (UAM and CHIMERE models)

ELICO-UMR 8013 (Meso NH model)

ATMO Nord Pas de Calais (air quality network)

Objective : To develop a scientific strategy of environmental diagnosis and remediation of the air quality on our region

Work program : (beginning date : october 2005)• Running of the models (modeling domain, grid, time step, boundary conditions [Prev’air, Esmeralda], emission inventories, complementary measurements…)• Modeling using 3 domains (nesting)• Validation of modeling by comparison with the air quality measurements (network, field campaign, lidar …)• Inverse modeling, remediation, prediction

Domaine 2

Domaine 3

Domaine 1

500 m

2.5 km

10 km

2005 CHIMERE Workshop 11

Project INRETS (Institut National de REcherches sur les Transports et leur Sécurité)

Collaborations :

PC2A and INRETS (Lyon-Bron)

Aim of the work : answer to the question « What is the relative impact of vehicular emissions on the formation of tropospheric oxidants »

Work program : (beginning date : october 2005)• Calculate the vehicules emissions with ARTEMIS model• Using an exhaustive molecular emission inventory of ozone precursors (up to 60 VOC)•Various scenarios of reduction in the emissions of VOC and/or NOx from vehicles will be considered , in order to calculated the corresponding percent of variation in O3 formation

Calculation of number of kilometers on the section

Application of the EF (g/km)for any pollutants and any engine

technology

Linear emissions

Gridded emissions

Major roads of the area

2005 CHIMERE Workshop 12

Project CERPA (Cartographie de l’Exposition aux Risques des Populations aux Aérosols )

Collaborations :

PC2A (USTL), LISE ( ULCO), HYGEOS, ATMO and APPA

Aim of the work : To deliver a data base which allows to study the health impact of the particles in a given area (Nord Pas de Calais) through the production of risk indices.

Work program : (beginning date : october 2005)• A consolidation of the PM product as derived from the Earth Observation• A modeling of the PM generation using the CHIMERE model• A joint activity with the health autorities in order to define suitable risk index for the populations regarding exposures to particules

This project will contribute to valorise an ending INTERREG -III project

(EXPER/PF)

2005 CHIMERE Workshop 13

Future developments on CHIMERE

In order to achieve the 3 projects presented, the code will be optimized:

• on one hand the chemical module :

use of explicit mechanisms

use of radiative codes or irradiance measurements for photolysis calculation

• on the other hand we plan to parallelize the code in order to reach a better space resolution using a finer scale (500 m) with a convenient computer time which should make more credible to use CHIMERE as a predictive tool.

Conclusion