Integrating Chemical Modelling and Satellite Observations for Monitoring Tropospheric Chemistry and Air Quality

A contribution to ACCENT-TROPOSAT-2, Task Group 2

Matthias Beekmann

Institut Pierre Simon Laplace Service d'Aèrologie, Université Pierre et Marie Curie
4, place Jussieu, Box 102  75252 Paris Cedex 05
Tel.:  +33-(0)1 44273865
Fax:  +33-(0)1 44273776

The proposed contribution of the IPSL/LISA/CNRM team aims at using existing and future satellite observations to improve our knowledge of processes constraining the chemical composition of the troposphere and to improve regional scale air quality modelling, with a focus on Europe. Theses objectives are mainly related to work in task group 2, synergistic use of models and observations. This contribution is complementary to another French contribution, by J. Orphal and C. Clerbaux aimed at developing new concepts for satellite observations of the tropospheric chemical composition. The contribution is organized within 6 activities:

·   use of available and future data from instruments operating in the infrared and UV-visible in Low-Earth-Orbits (ENVISAT, GOME, MOPITT, IASI, ….) to quantify the impact of satellite observations for modelling and forecasting tropospheric chemistry and air quality (in particular in relation with the GMES project),

·   development and application of methods to assimilate satellite observations for mapping various pollutants (ozone, NO2, AOD’s, …) by using techniques of increasing complexity  (optimal interpolation, Kalman filtering, variational methods),

·   inverse modelling of emissions (NOx, CO, VOC’s, particulate matter) from satellite observations using techniques of increasing complexity, from simple iterative methods to variational techniques,

·   use satellite observations to improve representation of transport and chemical processes within models (horizontal and vertical pollution plume transport, photochemical ozone build-up),

·   use of aerosol optical depth’s available from radio-spectrometers (MODIS, MERIS) to improve the quality of particulate matter simulations both at a continental European scale and a regional scale (large agglomerations); evaluate aerosol vertical distributions and optical properties in a tropospheric chemistry transport model (CHIMERE) by systematic comparisons between lidar profiles simulated as a model output and space-borne active remote sensing observations (GLAS, CALIPSO), and

·   participation in joint efforts for model / satellite comparisons within TG2.

The contribution is built on two regional and global scale models already used within the French community for long term simulations and operational air quality forecast, CHIMERE and MOCAGE (http://prevair.ineris.fr).


 

Time schedule

 

2004

2005

2006

2007

2008

2009

Activity 1

 

*

*

*

*

*

Activity 2

 

 

*

*

*

*

Activity 3

*

*

*

*

 

 

Activity 4

 

*

*

*

*

*

Activity 5

*

*

*

*

 

 

Activity 6

*

*

*

*

*

*

Approximate manpower and cost

 

2004

2005

2006

2007

2008

2009

Personnel / man-years

1

3

3

3

3

3

Yearly cost (kEuro)

10

20

20

20

20

20

Likely funding agencies

CEE; Programme National “Chimie Atmosphérique” (PNCA), CNES

Co-workers

Dr. Igor Konovalov                  

          Institute of Applied Physics, Russian Academy of Sciences
46 Ulyanov Str., Niznhy Novgorod , 603950 Russia
Visiting scientist at Service d’Aeronomie / CNRS
Tel.:  +33-(0)1 4427-3865
 

 

 Dr. Robert Vautard                 

          Institut Pierre-Simon Laplace

          LMD/Ecole Polytechnique

          91128 Palaiseau CEDEX, France

          Tel : +33 1 69334542

 


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