Title: Development and validation of a fully modular platform for numerical modelling of air pollution: POLAIR

Authors: Jaouad Boutahar, Stephanie Lacour, Vivien Mallet, Denis Quelo, Yelva Roustan, Bruno Sportisse

Addresses: CEREA (Centre d'Enseignement et de Recherche en Environnement Atmospherique), Joint Laboratory ENPC/EDF R&D, Cite Descartes, Champs sur Marne, 77455 Marne la Vallee Cedex, France. ' CEREA (Centre d'Enseignement et de Recherche en Environnement Atmospherique), Joint Laboratory ENPC/EDF R&D, Cite Descartes, Champs sur Marne, 77455 Marne la Vallee Cedex, France. ' CEREA (Centre d'Enseignement et de Recherche en Environnement Atmospherique), Joint Laboratory ENPC/EDF R&D, Cite Descartes, Champs sur Marne, 77455 Marne la Vallee Cedex, France. ' CEREA (Centre d'Enseignement et de Recherche en Environnement Atmospherique), Joint Laboratory ENPC/EDF R&D, Cite Descartes, Champs sur Marne, 77455 Marne la Vallee Cedex, France. ' CEREA (Centre d'Enseignement et de Recherche en Environnement Atmospherique), Joint Laboratory ENPC/EDF R&D, Cite Descartes, Champs sur Marne, 77455 Marne la Vallee Cedex, France. ' CEREA (Centre d'Enseignement et de Recherche en Environnement Atmospherique), Joint Laboratory ENPC/EDF R&D, Cite Descartes, Champs sur Marne, 77455 Marne la Vallee Cedex, France

Abstract: This paper describes a three-dimensional chemistry transport model, POLAIR, with a special focus on numerical aspects. POLAIR is a fully modular eulerian model. Several different chemical mechanisms are available, which can deal with photochemistry (Racm, Radm, etc.), continental impact (e.g. passive transport), mercury, aerosols, etc. POLAIR is designed to enable simulations from regional scales to continental scales. A few simulations at those scales have been conducted to assess and improve the code. Beyond forward simulations, inverse modelling and data assimilation can be performed, thanks to the tangent linear and adjoint versions of POLAIR, which are available through automatic differentiation.

Keywords: 3D modelling; air pollution; data assimilation; chemistry transport model; simulation; inverse modelling.

DOI: 10.1504/IJEP.2004.005474

International Journal of Environment and Pollution, 2004 Vol.22 No.1/2, pp.17 - 28

Available online: 12 Oct 2004 *

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