Assimilation of Tropospheric Species into a Chemistry Transport Model

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

Jean-Luc Attié

Laboratoire d'Aérologie, Université de Toulouse III,
14, Avenue Edouard Belin, 31400, Toulouse, France
Tel: +33-(0)5 6133 2746
Fax: +33-(0)5 6133 2790

This proposal aims at assimilating chemical satellite data from present and future instruments into the MOCAGE chemistry-transport model (leaded by METEO-FRANCE). The goal is to construct assimilated fields of CO and O3 by using data from MOPITT, GOME-2 and/or IASI in the troposphere and ODIN in the lower stratosphere.

The assimilation methods will be a Kalman filter, the 3-DFGAT and 4-DVAR methods via the PALM software developed by the CERFACS. The assimilation results (CO and O3) will be compared to an independant set of aircraft data provided during MOZAIC experiment.

This study aims to test the different types of assimilation methods, with respect to different chemical schemes, applied on different species from various satellite instruments. Also it will provide a tool capable of testing various configurations for evaluating a new concept of Air quality and pollution satellite instrument.

Time schedule

 

2004

2005

2006

2007

2008

2009

Assimilation of data

**

***

***

**

**

**

Comparison with aircraft  data

*

*

*

*

*

*

Approximate manpower and cost

 

2004

2005

2006

2007

2008

2009

Personnel / man-years

3

4

4

3

3

3

Yearly cost (kEuro)

20

25

25

20

20

20

Likely funding agencies

Programme National Chimie Atmospherique (PNCA), CNES

Co-investigators

Dr Phillipe Ricaud

Laboratoire d'Aerologie,  CNRS
14, Edouard Belin, 31400, Toulouse, France
Tel: +33-(0)5 6133 2723

Dr Vincent Henri Peuch

CNRM/Meteo-France
42, Avenue Coriolis, Toulouse, France
Tel: +33-(0)5 6107 9609

 

 


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